Difference between revisions of "OpenFOAM/C2/Supersonic-flow-over-a-wedge/English"
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| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| In this tutorial I will show you | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| In this tutorial I will show you | ||
| − | + | *how to solve a '''compressible flow''' problem of '''supersonic flow over a wedge ''' | |
| − | how to solve a '''compressible flow''' problem of '''supersonic flow over a wedge ''' | + | *how post process the results in '''paraView'''. |
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| − | how post process the results in '''paraView'''. | + | |
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System Requirement | System Requirement | ||
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| To record this tutorial | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| To record this tutorial, I am using |
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| − | I am using | + | |
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| + | *''' Linux Operating system Ubuntu version 10.04''' | ||
| + | *'''OpenFOAM version 2.1.0''' | ||
| + | *'''ParaView version 3.12.0''' | ||
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| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Slide: | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Slide 4: |
System Requirement | System Requirement | ||
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| − | + | The tutorials were recorded using the versions specified in previous slide. | |
| − | + | Subsequently the tutorials were edited to latest versions. | |
| + | To install latest system requirements go to Installation Sheet. | ||
| + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| | ||
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| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Slide | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Slide 5: |
Prerequisites | Prerequisites | ||
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| To practice this tutorial a learner should have some basic knowledge of | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| To practice this tutorial a learner should have some basic knowledge of | ||
| − | + | *'''Compressible flows''' and | |
| − | + | *'''Gas Dynamics''' | |
| − | '''Compressible flows''' and | + | |
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| − | + | ||
| − | '''Gas Dynamics''' | + | |
|- | |- | ||
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| |
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Let us now solve '''supersonic flow''' over a '''wedge''' using '''OpenFOAM''' and | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Let us now solve |
| − | + | *'''supersonic flow''' over a '''wedge''' using '''OpenFOAM''' and | |
| − | + | *see the '''shock structure''' formed using '''ParaView''' | |
| − | see the '''shock structure''' formed using ''' | + | |
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| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Slide | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Slide 6 : Boundary Conditions |
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| The problem consists of a wedge | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| The problem consists of a wedge with '''semi-angle of 15 degrees''' kept in a '''uniform supersonic flow'''. |
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| − | with '''semi-angle of 15 degrees''' kept in a | + | |
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| − | '''uniform supersonic flow''' | + | |
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| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Inlet velocity 5m/s | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Inlet velocity 5m/s | ||
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Inlet velocity is '''5 meters per second''' | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| '''Inlet velocity''' is '''5 meters per second''' |
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| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Boundary conditions as shown in the figure | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Boundary conditions as shown in the figure | ||
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| The '''boundary | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| The '''boundary conditions''' are set as shown in the figure. |
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| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Slide | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Slide 7 : Solver |
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| The type of solver I am using here is '''rhoCentralFoam''' | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| The type of '''solver''' I am using here is '''rhoCentralFoam'''. |
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| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| | ||
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| It is a '''Density'''-based '''compressible flow solver''' | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| It is a '''Density'''-based '''compressible flow solver'''. |
| − | It is based on '''central- upwind | + | It is based on '''central- upwind schemes of Kurganov and Tadmor ''' |
|- | |- | ||
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Switch to the Terminal by Ctrl+Alt+T | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Switch to the Terminal by Ctrl+Alt+T | ||
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Open a '''command terminal ''' | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Open a '''command terminal '''. |
| − | + | To do this press '''Ctrl+Alt+T''' keys simultaneously on your keyboard. | |
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| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| | ||
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| In the '''terminal''' type path for '''supersonic flow''' over a '''wedge''' | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| In the '''terminal''' type path for '''supersonic flow''' over a '''wedge'''. |
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| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| In command terminal: | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| In command terminal: | ||
| − | Type run and press | + | Type '''run''' and press '''Enter'''. |
Problem is already set in OpenFOAM | Problem is already set in OpenFOAM | ||
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| In the terminal | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| In the '''terminal''' type ''''run'''' and press '''Enter'''. |
|- | |- | ||
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Type cd tutorial and press enter | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Type cd tutorial and press enter | ||
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Now type '''cd tutorial - '''Press Enter | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Now type '''cd tutorial - '''Press '''Enter'''. |
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| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Type '''cd compressible - '''Press Enter | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Type '''cd compressible - '''Press Enter | ||
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| '''cd compressible - '''Press Enter | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| '''cd compressible - '''Press '''Enter'''. |
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| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Type '''cd rhoCentralFoam - '''Press Enter | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Type '''cd rhoCentralFoam - '''Press Enter | ||
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| '''cd rhoCentralFoam - '''Press Enter | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| '''cd rhoCentralFoam - '''Press '''Enter'''. |
|- | |- | ||
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Type cd wedge and press enter | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Type cd wedge and press enter | ||
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| '''cd wedge15Ma5 | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| '''cd wedge15Ma5''' |
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| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| | ||
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| This is the name of the folder of '''supersonic flow''' over a wedge in '''rhoCentralFoam''' | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| This is the name of the folder of '''supersonic flow''' over a wedge in '''rhoCentralFoam'''. |
| − | + | And press '''Enter'''. | |
| − | ''' | + | |
|- | |- | ||
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Type ls | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Type ls | ||
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Now type''' ls''' and press '''Enter'''. |
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| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Type cd constant and press enter | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Type cd constant and press enter | ||
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Now open the '''blockMeshDict file''' | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Now open the '''blockMeshDict file'''. |
| − | + | To do this, type '''cd space constant''' and press '''Enter'''. | |
| − | + | ||
| − | + | ||
| − | type '''cd ''' | + | |
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| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Type cd polyMesh and press enter | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Type cd polyMesh and press enter | ||
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| '''cd | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| '''cd space polyMesh''' |
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| − | + | ||
| − | + | ||
| − | and press | + | Note that '''M''' here is capital and press '''Enter'''. |
|- | |- | ||
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Type ls and press enter | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Type ls and press enter | ||
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Now type '''ls''' and press | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Now type '''ls''' and press '''Enter'''. |
| − | + | ||
| − | + | ||
| − | + | ||
| − | + | ||
| + | You can see the '''blockMeshDict file'''. | ||
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| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Type '''gedit''' '''blockMeshDict''' and press enter | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Type '''gedit''' '''blockMeshDict''' and press enter | ||
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Type '''gedit space blockMeshDict'''. |
| − | + | Note that '''M''' and '''D '''here are capital and press '''Enter'''. | |
| − | + | ||
| − | + | ||
| − | and press | + | |
|- | |- | ||
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Drag and scroll down. |
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Let me drag this to the '''capture area'''. |
| − | + | Scroll down. | |
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| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| enter the data in '''vertices '''but it i already set up in the problem | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| enter the data in '''vertices '''but it i already set up in the problem | ||
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| In this you need to | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| In this you need to calculate the '''co-ordinates''' for the '''wedge'''. |
| − | This is already been | + | This is already been calculated and set up in the problem. |
|- | |- | ||
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| | ||
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| The rest of the data remain the same | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| The rest of the data remain the same. |
|- | |- | ||
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Boundary names similar to that in slide 5 | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Boundary names similar to that in slide 5 | ||
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| In '''boundary patches''' the boundaries are set as shown in the figure | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| In '''boundary patches''' the boundaries are set as shown in the figure. |
|- | |- | ||
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| | ||
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Close the '''blockMeshDict file''' | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Close the '''blockMeshDict file'''. |
|- | |- | ||
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Type : cd .. (twice) and press '''Enter''' >> wedge folder |
| − | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| In the '''command terminal''', type | |
| − | + | '''cd ..(dot dot)''' twice to return back to the '''wedge folder'''. | |
| − | wedge folder | + | |
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| | + | |
| − | + | ||
| − | + | ||
| − | + | ||
| − | + | ||
| − | + | ||
| − | to return back to '''wedge folder''' | + | |
|- | |- | ||
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| | ||
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Now | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Now open the '''0 folder'''. |
|- | |- | ||
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Type cd 0 and press enter | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Type cd 0 and press enter | ||
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| To do this type | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| To do this type '''cd space 0''' and press '''Enter'''. |
| − | + | ||
| − | + | ||
| − | '''cd | + | |
|- | |- | ||
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| type ls and press enter | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| type ls and press enter | ||
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| ''' | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Type '''ls''' and press '''Enter'''. |
|- | |- | ||
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| | ||
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| This contains initial '''boundary condition''' for '''pressure,velocity''' and '''temprature'''. |
|- | |- | ||
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| type cd .. and press enter | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| type cd .. and press enter | ||
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Type '''cd .. (dot dot)''' and press '''Enter'''. |
|- | |- | ||
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| | ||
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Now we need to '''mesh | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Now we need to '''mesh''' the geometry. |
|- | |- | ||
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Mesh the geometry | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Mesh the geometry. |
type: blockMesh | type: blockMesh | ||
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| To do this in the '''command terminal''' | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| To do this in the '''command terminal''', |
| + | type '''blockMesh''' and press '''Enter'''. | ||
| − | + | '''Meshing''' has been done. | |
| − | + | ||
| − | + | ||
| − | '''Meshing''' has been done | + | |
|- | |- | ||
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Terminal : type paraFoam and press enter | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Terminal : type paraFoam and press enter | ||
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Now to view the geometry in the '''terminal ''' | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Now to view the geometry in the '''terminal''', type '''paraFoam''' and press '''Enter'''. |
| − | + | This will open the '''ParaView''' window. | |
| − | + | ||
| − | + | ||
| − | This will open the ''' | + | |
|- | |- | ||
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Paraview window | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Paraview window | ||
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| On the left hand side of '''object inspector menu''' click '''APPLY''' | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| On the left hand side of '''object inspector menu''' click '''APPLY'''. |
|- | |- | ||
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| About wedge geometry | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| About wedge geometry | ||
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| In this you can see the '''geometry''' is which is a '''rectangular''' | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| In this you can see the '''geometry''' is which is a '''rectangular section upstream'''. |
| + | changes to a '''wedge downstream'''. | ||
| − | |||
| − | + | Close the '''ParaView''' window. | |
| − | Close the ''' | + | |
|- | |- | ||
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| | ||
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Now run the | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Now run the '''solver 'rhoCentralFoam'''' |
|- | |- | ||
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Terminal : rehoCentralFoam and press enter | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Terminal : rehoCentralFoam and press enter | ||
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| To do this in the '''command terminal''' | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| To do this in the '''command terminal''', type '''rhoCentralFoam''' and press '''Enter'''. |
| − | + | ||
| − | + | ||
| − | type '''rhoCentralFoam''' and | + | |
|- | |- | ||
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Iterations in terminal window | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Iterations in terminal window | ||
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| The '''iterations''' running can be seen in the | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| The '''iterations''' running can be seen in the '''terminal window'''. |
| − | + | ||
| − | + | ||
| − | '''terminal window''' | + | |
|- | |- | ||
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| | ||
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| '''Iterations | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| '''Iterations''' running will stop after it '''converges'''. |
| − | + | ||
| − | + | ||
| − | + | ||
| − | at the end of the time step | + | Or at the end of the '''time step'''. |
| − | Now the''' solving''' has been done | + | Now the''' solving''' has been done. |
|- | |- | ||
| Line 339: | Line 275: | ||
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| To '''visualise''' these results let us open the | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| To '''visualise''' these results let us open the '''ParaView''' window once again. |
| − | + | ||
| − | + | ||
| − | ''' | + | |
|- | |- | ||
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| type: paraFoam and press enter | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| type: paraFoam and press enter | ||
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| In the '''command terminal''' | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| In the '''command terminal''', type “'''paraFoam” '''and press '''Enter'''. |
| − | + | ||
| − | + | ||
| − | type “'''paraFoam” '''and press Enter | + | |
|- | |- | ||
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Click APPLY in object inspector menu | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Click APPLY in object inspector menu | ||
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Again on the left hand side of | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Again on the left hand side of '''object inspector menu '''click '''APPLY'''. |
| − | + | ||
| − | + | ||
| − | '''object inspector menu '''click '''APPLY''' | + | |
|- | |- | ||
| Line 363: | Line 290: | ||
Select U | Select U | ||
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| On the left side top in '''active variable control menu''' | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| On the left side top in '''active variable control menu''', you will see a dropdown menu showing '''Solid Color'''. |
| − | + | Now click on it and change from solid color to capital '''U'''. | |
| − | + | ||
| − | + | ||
| − | + | ||
| − | Now click on it | + | |
| − | + | ||
| − | + | ||
| − | + | ||
|- | |- | ||
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Make the color legend ON | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Make the color legend ON | ||
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Now make the '''color legend ON''' | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Now make the '''color legend ON''' by clicking on the left hand side top of '''active variable control menu'''. |
| − | + | And make the '''color legend ON'''. | |
| − | + | Click on it. | |
| − | + | ||
| − | + | ||
| − | + | ||
|- | |- | ||
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| | ||
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| On top of the ''' | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| On top of the '''ParaView''' window, you can see the '''VCR control'''. |
| − | Click on '''PLAY''' | + | Click on '''PLAY'''. |
|- | |- | ||
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| In the paraview window | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| In the paraview window | ||
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| You can see the final results of '''U velocity''' | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| You can see the final results of '''U velocity'''. |
|- | |- | ||
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| In object inspector menu | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| In object inspector menu | ||
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Now scroll down the | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Now scroll down the '''Properties''' in '''Object inspector menu''' on the left hand side. |
| − | + | ||
| − | + | ||
| − | ''' | + | |
| − | Now click on ''' | + | Now click on '''Display''' besides '''Properties'''. |
|- | |- | ||
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Click on rescale to size | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Click on rescale to size | ||
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Scroll down and click on '''Rescale to Size''' | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Scroll down and click on '''Rescale to Size'''. |
|- | |- | ||
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| | ||
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| You can see the final value of '''Velocity magnitude''' | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| You can see the final value of '''Velocity magnitude'''. |
|- | |- | ||
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Select pressure in drop dwon menu (p) |
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Similarly you can select '''pressure''' | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Similarly you can select '''pressure'''. |
| − | You can see the final result of '''pressure''' | + | You can see the final result of '''pressure'''. |
| − | Now close the ''' | + | Now close the '''ParaView''' window. |
|- | |- | ||
| Line 434: | Line 348: | ||
in terminal type Mach | in terminal type Mach | ||
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| You can also calculate the '''Mach''' | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| You can also calculate the '''Mach number''' for the '''flow'''. |
| − | To do this we can use the '''Openfoam '''utility | + | To do this we can use the '''Openfoam '''utility by typing '''Mach''' in the '''command terminal'''. |
| − | + | ||
| − | + | ||
| − | by ''' | + | |
|- | |- | ||
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Type mach in terminal | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Type mach in terminal. |
mach number for each time step | mach number for each time step | ||
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Type '''Mach''' in the '''command terminal''' | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Type '''Mach''' in the '''command terminal'''. |
| − | Note that '''M''' here is ''' | + | Note that '''M''' here is capital and press '''Enter'''. |
| − | You can see that '''Mach number''' is calculated for each time step | + | You can see that '''Mach number''' is calculated for each '''time step'''. |
|- | |- | ||
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Open paraview window | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Open paraview window. |
| Line 463: | Line 374: | ||
click APPLY | click APPLY | ||
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Now again open the ''' | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Now again open the '''ParaView''' window by typing in the '''command terminal paraFoam'''. |
| − | + | And press '''Enter'''. | |
| − | + | Click '''APPLY'''. | |
| − | + | ||
| − | + | ||
| − | + | ||
|- | |- | ||
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| In object inspector menu | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| In object inspector menu, check the Ma check box. |
| − | + | ||
| − | check the Ma check box | + | |
change from solid color to Ma | change from solid color to Ma | ||
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Scroll down. |
| − | In '''volume fields''' | + | In '''volume fields''' check the '''Ma '''box and again click '''APPLY'''. |
| − | On top of''' active variable control menu''' click on '''Solid Color''' | + | On top of''' active variable control menu''' click on '''Solid Color''' and change it to '''Ma'''. |
| − | + | ||
| − | + | ||
| − | and change it to '''Ma''' | + | |
|- | |- | ||
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| In VCR control click on play button | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| In VCR control click on play button >> make the color legend ON |
| − | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| In the '''VCR control''' menu click on '''PLAY''' and make the '''color legend ON'''. | |
| − | + | ||
| − | make the color legend ON | + | |
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| In the '''VCR control''' menu click on '''PLAY''' | + | |
| − | + | ||
| − | + | ||
| − | and make the '''color legend ON''' | + | |
| − | + | ||
| − | + | ||
| − | + | ||
|- | |- | ||
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| In paraview window | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| In paraview window | ||
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| You can see the '''Mach number''' in the''' color legend''' | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| You can see the '''Mach number''' in the''' color legend''' and corresponding colours. |
| − | + | |- | |
| − | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| | |
| + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| We notice here that when the wedge is kept in a '''supersonic flow''', | ||
| + | *it produces a '''shock''' across which the '''flow properties''' | ||
| + | **temperature | ||
| + | ** pressure | ||
| + | ** and density | ||
| + | * drastically changes. | ||
|- | |- | ||
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Slide : For validation | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Slide 8: For validation |
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Let me switch back to the '''slides''' | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Let me switch back to the '''slides'''. |
| − | The solved tutorial can be | + | The solved tutorial can be validated with exact solution available in basic books of '''Aerodynamics''' by '''John D Anderson'''. |
| − | + | ||
| − | + | ||
| − | + | ||
| − | + | ||
| − | + | ||
|- | |- | ||
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Slide | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Slide 9: Summary |
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| In this tutorial we learnt: | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| In this tutorial we learnt: | ||
| − | + | *'''Solving a compressible flow problem''' | |
| − | '''Solving a compressible flow problem''' | + | *'''Velocity''' and '''pressure contour''' for the '''wedge''' |
| − | + | *'''OpenFOAM utility''' for calculating the '''Mach number''' | |
| − | + | ||
| − | '''Velocity''' and '''pressure contour''' for the wedge | + | |
| − | + | ||
| − | + | ||
| − | '''OpenFOAM utility''' for calculating the '''Mach number''' | + | |
|- | |- | ||
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Slide | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Slide 10 : Assignment |
| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Assignment: | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Assignment: | ||
| − | Vary the '''wedge angle between 10 ° to 15 ° ''' | + | #Vary the '''wedge angle''' between '''10 °''' to '''15 ° ''' |
| − | + | #to view the''' shock characteristic''' for the '''flow'''. | |
| − | + | ||
| − | to view the''' shock characteristic''' for the flow | + | |
|- | |- | ||
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Slide | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Slide 11: |
About Spoken tutorials | About Spoken tutorials | ||
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| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Slide: | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Slide 12: |
| + | |||
| + | About Spoken tutorials | ||
| + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| The Spoken Tutorial Project Team | ||
| + | |||
| + | -Conducts workshops using spoken tutorials | ||
| + | |||
| + | -Gives certificates to those who pass an online test | ||
| + | |||
| + | -For more details, please write to us at | ||
| + | |||
| + | contact@spoken-tutorial.org | ||
| + | |||
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| + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Slide 13: | ||
Forum to answer questions | Forum to answer questions | ||
| − | + | ||
| + | Do you have questions on THIS Spoken Tutorial? | ||
Choose the minute and second where you have the question | Choose the minute and second where you have the question | ||
Explain your question briefly | Explain your question briefly | ||
Someone from the FOSSEE team will answer them. Please visit | Someone from the FOSSEE team will answer them. Please visit | ||
http://forums.spoken-tutorial.org/ | http://forums.spoken-tutorial.org/ | ||
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Forum to answer questions | Forum to answer questions | ||
| − | + | ||
| + | Questions not related to the Spoken Tutorial? | ||
Do you have general/technical questions on the Software? | Do you have general/technical questions on the Software? | ||
Please visit the FOSSEE forum | Please visit the FOSSEE forum | ||
http://forums.fossee.in/ | http://forums.fossee.in/ | ||
Choose the Software and post your question | Choose the Software and post your question | ||
| − | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| | |
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| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Slide: | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Slide 15: |
Lab Migration Project | Lab Migration Project | ||
| − | + | ||
| + | We coordinate migration from commercial CFD software like ANSYS to OpenFOAM | ||
We conduct free Workshops and provide solutions to CFD Problem Statements in OpenFOAM | We conduct free Workshops and provide solutions to CFD Problem Statements in OpenFOAM | ||
For more details visit this site: | For more details visit this site: | ||
http://cfd.fossee.in/ | http://cfd.fossee.in/ | ||
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Case Study Project | Case Study Project | ||
| − | + | ||
| + | We invite students to solve a feasible CFD problem statement of reasonable complexity using OpenFOAM | ||
We give honorarium and certificate to those who do this | We give honorarium and certificate to those who do this | ||
For more details visit this site: | For more details visit this site: | ||
http://cfd.fossee.in/ | http://cfd.fossee.in/ | ||
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| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Slide | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| Slide 17: |
Acknowledgement | Acknowledgement | ||
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Spoken Tutorials are part of Talk to a Teacher project | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| Spoken Tutorials are part of Talk to a Teacher project. |
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| style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| About the contributor | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:none;padding:0.097cm;"| About the contributor | ||
| − | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| This script has been contributed by Arvind | + | | style="border-top:none;border-bottom:0.05pt solid #000000;border-left:0.05pt solid #000000;border-right:0.05pt solid #000000;padding:0.097cm;"| This script has been contributed by Arvind N. |
| − | + | And this is Rahul Joshi from IIT BOMBAY signing off. | |
Thanks for joining. | Thanks for joining. | ||
|} | |} | ||
Latest revision as of 12:42, 30 May 2019
Tutorial:Supersonic flow over a wedge using OpenFOAM
Script : Arvind N
Narration: Rahul Joshi
Keywords: Video tutorial,CFD,Wedge,Mach number,Compressible flows.
| Visual Cue | Narration |
| Slide 1 | Hello and welcome to the spoken tutorial on Supersonic flow over a wedge using OpenFOAM |
| Slide 2: Learning Objectives | In this tutorial I will show you
|
| Slide 3:
System Requirement |
To record this tutorial, I am using
|
| Slide 4:
System Requirement The tutorials were recorded using the versions specified in previous slide. Subsequently the tutorials were edited to latest versions. To install latest system requirements go to Installation Sheet. |
|
| Slide 5:
Prerequisites |
To practice this tutorial a learner should have some basic knowledge of
|
Let us now solve
| |
| Slide 6 : Boundary Conditions | The problem consists of a wedge with semi-angle of 15 degrees kept in a uniform supersonic flow. |
| Inlet velocity 5m/s | Inlet velocity is 5 meters per second |
| Boundary conditions as shown in the figure | The boundary conditions are set as shown in the figure. |
| Slide 7 : Solver | The type of solver I am using here is rhoCentralFoam. |
| It is a Density-based compressible flow solver.
| |
| Switch to the Terminal by Ctrl+Alt+T | Open a command terminal .
|
| In the terminal type path for supersonic flow over a wedge. | |
| In command terminal:
Type run and press Enter.
|
In the terminal type 'run' and press Enter. |
| Type cd tutorial and press enter | Now type cd tutorial - Press Enter. |
| Type cd compressible - Press Enter | cd compressible - Press Enter. |
| Type cd rhoCentralFoam - Press Enter | cd rhoCentralFoam - Press Enter. |
| Type cd wedge and press enter | cd wedge15Ma5 |
| This is the name of the folder of supersonic flow over a wedge in rhoCentralFoam.
And press Enter. | |
| Type ls | Now type ls and press Enter. |
| You will see three folders : 0,constant and system. | |
| Type cd constant and press enter | Now open the blockMeshDict file.
|
| Type cd polyMesh and press enter | cd space polyMesh
|
| Type ls and press enter | Now type ls and press Enter.
|
| Type gedit blockMeshDict and press enter | Type gedit space blockMeshDict.
Note that M and D here are capital and press Enter. |
| Drag and scroll down. | Let me drag this to the capture area.
|
| enter the data in vertices but it i already set up in the problem | In this you need to calculate the co-ordinates for the wedge.
|
| The rest of the data remain the same. | |
| Boundary names similar to that in slide 5 | In boundary patches the boundaries are set as shown in the figure. |
| Close the blockMeshDict file. | |
| Type : cd .. (twice) and press Enter >> wedge folder | In the command terminal, type
cd ..(dot dot) twice to return back to the wedge folder. |
| Now open the 0 folder. | |
| Type cd 0 and press enter | To do this type cd space 0 and press Enter. |
| type ls and press enter | Type ls and press Enter. |
| This contains initial boundary condition for pressure,velocity and temprature. | |
| type cd .. and press enter | Type cd .. (dot dot) and press Enter. |
| Now we need to mesh the geometry. | |
| Mesh the geometry.
type: blockMesh |
To do this in the command terminal,
type blockMesh and press Enter.
|
| Terminal : type paraFoam and press enter | Now to view the geometry in the terminal, type paraFoam and press Enter.
|
| Paraview window | On the left hand side of object inspector menu click APPLY. |
| About wedge geometry | In this you can see the geometry is which is a rectangular section upstream.
changes to a wedge downstream.
|
| Now run the solver 'rhoCentralFoam' | |
| Terminal : rehoCentralFoam and press enter | To do this in the command terminal, type rhoCentralFoam and press Enter. |
| Iterations in terminal window | The iterations running can be seen in the terminal window. |
| Iterations running will stop after it converges.
| |
| open paraview
|
To visualise these results let us open the ParaView window once again. |
| type: paraFoam and press enter | In the command terminal, type “paraFoam” and press Enter. |
| Click APPLY in object inspector menu | Again on the left hand side of object inspector menu click APPLY. |
| Solid geometry in drop down menu
|
On the left side top in active variable control menu, you will see a dropdown menu showing Solid Color.
Now click on it and change from solid color to capital U. |
| Make the color legend ON | Now make the color legend ON by clicking on the left hand side top of active variable control menu.
|
| On top of the ParaView window, you can see the VCR control.
| |
| In the paraview window | You can see the final results of U velocity. |
| In object inspector menu | Now scroll down the Properties in Object inspector menu on the left hand side.
|
| Click on rescale to size | Scroll down and click on Rescale to Size. |
| You can see the final value of Velocity magnitude. | |
| Select pressure in drop dwon menu (p)
|
Similarly you can select pressure.
|
| Calculate the Mach number
|
You can also calculate the Mach number for the flow.
|
| Type mach in terminal.
|
Type Mach in the command terminal.
|
| Open paraview window.
|
Now again open the ParaView window by typing in the command terminal paraFoam.
|
| In object inspector menu, check the Ma check box.
|
Scroll down.
|
| In VCR control click on play button >> make the color legend ON | In the VCR control menu click on PLAY and make the color legend ON. |
| In paraview window | You can see the Mach number in the color legend and corresponding colours. |
We notice here that when the wedge is kept in a supersonic flow,
| |
| Slide 8: For validation | Let me switch back to the slides.
|
| Slide 9: Summary | In this tutorial we learnt:
|
| Slide 10 : Assignment | Assignment:
|
| Slide 11:
About Spoken tutorials |
The video available at this URL:
http://spoken-tutorial.org/What_is_a_Spoken_Tutorial It summarizes the Spoken Tutorial project. If you do not have good bandwidth, you can download and watch it. |
| Slide 12:
About Spoken tutorials |
The Spoken Tutorial Project Team
-Conducts workshops using spoken tutorials -Gives certificates to those who pass an online test -For more details, please write to us at contact@spoken-tutorial.org |
| Slide 13:
Forum to answer questions Do you have questions on THIS Spoken Tutorial? Choose the minute and second where you have the question Explain your question briefly Someone from the FOSSEE team will answer them. Please visit http://forums.spoken-tutorial.org/ |
|
| Slide 14:
Forum to answer questions Questions not related to the Spoken Tutorial? Do you have general/technical questions on the Software? Please visit the FOSSEE forum http://forums.fossee.in/ Choose the Software and post your question |
|
| Slide 15:
Lab Migration Project We coordinate migration from commercial CFD software like ANSYS to OpenFOAM We conduct free Workshops and provide solutions to CFD Problem Statements in OpenFOAM For more details visit this site: http://cfd.fossee.in/ |
|
| Slide 16:
Case Study Project We invite students to solve a feasible CFD problem statement of reasonable complexity using OpenFOAM We give honorarium and certificate to those who do this For more details visit this site: http://cfd.fossee.in/ |
|
| Slide 17:
Acknowledgement |
Spoken Tutorials are part of Talk to a Teacher project.
More information on the same is available at the following URL link http://spoken-tutorial.org/NMEICT-Intro |
| About the contributor | This script has been contributed by Arvind N.
And this is Rahul Joshi from IIT BOMBAY signing off. Thanks for joining. |
