OpenFOAM/C2/Supersonic-flow-over-a-wedge/English-timed - Revision history

DeepaVedartham at 06:59, 11 April 2019

2019-04-11T06:59:04Z

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PoojaMoolya at 05:16, 24 March 2017

2017-03-24T05:16:35Z

PoojaMoolya at 09:56, 10 March 2017

2017-03-10T09:56:23Z

PoojaMoolya at 09:34, 10 March 2017

2017-03-10T09:34:10Z

PoojaMoolya at 09:33, 10 March 2017

2017-03-10T09:33:12Z

PoojaMoolya at 09:31, 10 March 2017

2017-03-10T09:31:42Z

Sandhya.np14 at 06:17, 27 June 2016

2016-06-27T06:17:18Z

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Pratik kamble at 09:47, 24 November 2015

2015-11-24T09:47:33Z

Pratik kamble at 09:43, 24 November 2015

2015-11-24T09:43:32Z

Pratik kamble: Created page with "{|border=1 | '''Time''' | '''Narration''' |- | 00:01 | Hello and welcome to the spoken tutorial on '''Supersonic flow over a wedge using OpenFOAM''' |- | 00:07 | In this tu..."

2015-11-24T09:25:39Z

Created page with "{|border=1 | '''Time''' | '''Narration''' |- | 00:01 | Hello and welcome to the spoken tutorial on '''Supersonic flow over a wedge using OpenFOAM''' |- | 00:07 | In this tu..."

New page

{|border=1
| '''Time'''
| '''Narration'''

|-
| 00:01
| Hello and welcome to the spoken tutorial on '''Supersonic flow over a wedge using OpenFOAM'''

|-
| 00:07
| In this tutorial I will show you How to solve a '''compressible flow''' problem of '''supersonic flow over a wedge ''' How to post process the results in '''paraView'''.

|-
| 00:18
| To record this tutorial I am using''' Linux Operating system Ubuntu version 10.04'''
'''OpenFOAM version 2.1.0'''
'''ParaView version 3.12.0'''

|-
| 00:30
| To practice this tutorial a learner should have some basic knowledge of '''Compressible flows''' and'''Gas Dynamics'''

|-
| 00:38
| Let us now solve '''supersonic flow''' over a '''wedge''' using '''OpenFOAM''' and see the '''shock structure''' formed using '''paraview'''

|-
| 00:47
| The problem consists of a wedge with '''semi-angle of 15 degrees''' kept in a '''uniform supersonic flow'''

|-
| 00:55
| Inlet velocity is '''5 meters per second'''

|-
| 01:00
| The '''boundary condition'''s are set as shown in the figure

|-
| 01:05
| The type of solver I am using here is '''rhoCentralFoam'''

|-
| 01:10
| It is a '''Density'''-based '''compressible flow solver''' It is based on '''central- upwind''' '''schemes of Kurganov and Tadmor '''

|-
| 01:21
| Open a '''command terminal ''' to do this press '''ctrl +alt+ t''' keys '''simultaneously''' on your keyboard

|-
| 01:28
| In the '''terminal''' type path for '''supersonic flow''' over a '''wedge'''

|-
|01:35
|In the terminal Type ''''run' and press enter'''

|-
| 01:40
| '''cd tutorial - '''Press Enter '''cd compressible - '''Press Enter '''cd rhoCentralFoam - '''Press Enter

|-
|02:02
| '''cd wedge15Ma5 and press enter'''

|-
| 02:13
| This is the name of the folder of '''supersonic flow''' over a wedge in '''rhoCentralFoam''' and press enter'''

|-
| 02:21
| Now type''' ls''' and press enter

|-
| 02:24
| You will see '''three folders''' : '''0,constant and system.'''

|-
| 02:29
| Now open the '''blockMeshDict file''',to do this

|-
|02:34
|type '''cd '''space '''constant''' and press enter

|-
| 02:41
| '''cd '''space '''polyMesh''' note that '''M''' here is capital and press enter

|-
| 02:49
| Now type '''ls''' and press enter you can see the '''blockMeshDict file'''

|-
| 02:54
| To view'''blockMeshDict file''' type '''gedit''' space''' blockMeshDict''' note that '''M and D '''here are capital and press enter

|-
| 03:08
| let me drag this to the '''capture area''' scroll down

|-
| 03:14
| In this you need to '''calculate''' the '''co-ordinates''' for the wedge

|-
| 03:20
| This has been already '''calculated''' and set up in the problem

|-
| 03:23
| The rest of the data remain the same

|-
|03:29
| In '''boundary patches''' the boundaries are set as shown in the figure

|-
| 03:33
| Close the '''blockMeshDict file'''

|-
| 03:36
| in the '''command terminal''' type '''cd ..(dot dot)''' '''twice''' to return back to '''wedge folder'''

|-
| 03:45
| Now Open the '''0 folder '''

|-
| 03:51
| To do this type '''cd '''space''' 0 and press enter'''

|-
| 03:58
| '''Type ls and press enter'''

|-
| 04:02
| This contains initial boundary condition for '''pressure,velocity and Temprature'''

|-
| 04:10
| Type '''cd .. (dot dot)''' and press enter.Now we need to '''mesh the geometry'''

|-
| 04:19
| To do this in the '''command terminal''' type '''blockMesh''' and Press Enter '''Meshing''' has been done

|-
| 04:32
| Now to view the geometry in the '''terminal ''''''type paraFoam''' and press enter This will open the '''paraview''' window

|-
| 04:45
| On the left hand side of '''object inspector menu''' click '''APPLY'''

|-
| 04:53
| In this you can see the '''geometry''' is which is a '''rectangular''' '''section upstream''' and changes to a '''wedge downstream''' Close the '''paraview''' window

|-
| 05:05
| Now run the solver ''''rhoCentralFoam''''

|-
| 05:11
| To do this in the '''command terminal''' type '''rhoCentralFoam''' and Press Enter

|-
| 05:20
| The '''iterations''' running can be seen in the '''terminal window'''

|-
| 05:24
| '''Iterations running''' will stop after it '''converges '''or at the end of the time step Now the''' solving''' has been done

|-
| 05:34
| To '''visualise''' these results let us open the '''paraview window''' once again

|-
| 05:40
| In the '''command terminal''' type “'''paraFoam” '''and press Enter

|-
| 05:49
| Again on the left hand side of '''object inspector menu '''click '''APPLY'''

|-
| 05:56
| On the left side top in '''active variable control menu''''''you will see a drop down menu showing solid color.''' Now click on it '''And change from solid color to capital U'''

|-
| 06:14
| Now make the '''color legend ON''' by clicking on left hand side top of '''active variable control menu''' and make the '''color legend ON''' '''click on it'''

|-
| 06:28
| On top of the '''paraview window''' you can see the '''VCR control''' Click on '''PLAY'''

|-
| 06:37
| You can see the final results of '''U velocity'''

|-
| 06:42
| Now scroll down the '''properties''' in '''object inspector menu''' on left hand side Now click on '''display''' besides '''properties'''

|-
| 06:56
| Scroll down and click on '''Rescale to Size''' You can see the final value of '''Velocity magnitude'''

|-
| 07:05
| Similarly you can select '''pressure'''You can see the final result of '''pressure''' Now close the '''paraview window'''

|-
| 07:16
| You can also calculate the '''Mach''' number for the flow To do this we can use the '''Openfoam '''utility by '''typing Mach in the command terminal '''

|-
| 07:26
| Type '''Mach''' in the '''command terminal'''

|-
|07:29
| Note that '''M''' here is '''capital''' and press enter.You can see that '''Mach number''' is calculated for each time step

|-
| 07:36
| Now again open the '''paraview window'''.By typing in the '''command terminal paraFoam'''and press enter

|-
| 07:48
| Click '''APPLY''' scroll down.In '''volume fields''' '''Check''' the '''Ma '''box and click '''APPLY'''

|-
| 08:04
| On top of''' active variable control menu''' click on '''Solid Color''' and change it to '''Ma'''

|-
| 08:11
| In the '''VCR control''' menu click on '''PLAY''' and make the '''color legend ON'''

|-
| 08:21
| You can see the '''Mach number''' in the''' color legend''' and '''corresponding colours'''

|-
| 08:29
| We notice here that when the wedge is kept in supersonic flow it produce a shock across which the flow properties like temprature, pressure and density drastically changes

|-
|08:43
| Now Let me switch back to the '''slides''' The solved tutorial can be '''validated''' with '''exact ''''''solution'''

|-
| 08:50
| '''available '''in basic books of '''Aerodynamics''' by '''John D Anderson'''

|-
| 08:55
| In this tutorial we learnt: '''Solving a compressible flow problem'''
'''Velocity''' and '''pressure contour''' for the wedge
'''OpenFOAM utility''' for calculating the '''Mach number'''

|-
| 09:06
| As an Assignment Vary the '''wedge angle between 10 ° to 15 ° ''' to view the''' shock characteristic''' for the flow

|-
| 09:14
| This bring us to the end of tutorial watch The video available at this URL: http://spoken-tutorial.org/What_is_a_Spoken_Tutorial

|-
| 09:21
| It summarizes the Spoken Tutorial project. If you do not have good bandwidth, you can download and watch it.

|-
| 09:28
| 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

|-
| 09:41
| Spoken Tutorials project is part of Talk to a Teacher project, It is supported by the National Mission on Education through ICT, MHRD, Government of India. More information on the same is available at the following URL link http://spoken-tutorial.org/NMEICT-Intro

|-
| 09:56
| This script has been contributed by Arvind M and this is Rahul Joshi from IIT BOMBAY signing off.Thanks for joining.

|}

@@ Line 259: / Line 259: @@
 | 08:55
 | In this tutorial, we learnt: * '''Solving a compressible flow problem'''
- '''Velocity''' and '''pressure contour''' for the wedge and
-  '''OpenFOAM utility''' for calculating the '''Mach number'''.
+'''Velocity''' and '''pressure contour''' for the wedge and  '''OpenFOAM utility''' for calculating the '''Mach number'''.
 |-
@@ Line 268: / Line 268: @@
 |-
 | 09:14
-| This brings us to the end of the tutorial. Watch the video available at this URL:
+| This brings us to the end of the tutorial. Watch the video available at this URL: http://spoken-tutorial.org/What_is_a_Spoken_Tutorial
 http://spoken-tutorial.org/What_is_a_Spoken_Tutorial
 |-
@@ Line 277: / Line 276: @@
 |-
 | 09:28
-| The Spoken Tutorial Project team:
+| The Spoken Tutorial Project team: Conducts workshops using spoken tutorials
- Conducts workshops using spoken tutorials
- Gives certificates to those who pass an online test.
+Gives certificates to those who pass an online test. For more details, please write to us at '''contact@spoken-tutorial.org'''
- For more details, please write to us at '''contact@spoken-tutorial.org'''
 |-
 | 09:41
 | '''Spoken Tutorials''' project is  part of '''Talk to a Teacher''' project. It is supported by the National Mission on Education through ICT, MHRD, Government of India.
 More information on the same is available at the following URL link:
-http://spoken-tutorial.org/NMEICT-Intro
+More information on the same is available at the following URL link: http://spoken-tutorial.org/NMEICT-Intro
 |-

@@ Line 57: / Line 57: @@
 |-
 | 01:40
-|  '''cd space tutorials''' and press '''Enter'''.
+| '''cd space tutorials''' and press '''Enter'''.'''cd space compressible ''' and press '''Enter'''.'''cd space rhoCentralFoam''' and press '''Enter'''.
 '''cd space compressible ''' and press '''Enter'''.
 '''cd space rhoCentralFoam''' and press '''Enter'''.
 |-

@@ Line 9: / Line 9: @@
 |-
 | 00:07
-| In this tutorial, I will show you: * How to solve a '''compressible flow''' problem of '''supersonic flow over a wedge '''
+| In this tutorial, I will show you: * How to solve a '''compressible flow''' problem of '''supersonic flow over a wedge ''' How to postprocess the results in '''paraView'''.
- How to postprocess the results in '''paraView'''.
 |-

@@ Line 14: / Line 14: @@
 |-
 | 00:18
-| To record this tutorial, I am using:
+| To record this tutorial, I am using:'''Linux Operating system Ubuntu''' version 10.04'''OpenFOAM''' version 2.1.0'''ParaView''' version 3.12.0
- '''Linux Operating system Ubuntu''' version 10.04
- '''OpenFOAM''' version 2.1.0
- '''ParaView''' version 3.12.0
 |-

@@ Line 10: / Line 10: @@
 | 00:07
 | In this tutorial, I will show you: * How to solve a '''compressible flow''' problem of '''supersonic flow over a wedge '''
-* How to postprocess the results in '''paraView'''.
+ How to postprocess the results in '''paraView'''.
 |-
 | 00:18
 | To record this tutorial, I am using:
-* '''Linux Operating system Ubuntu''' version 10.04
+ '''Linux Operating system Ubuntu''' version 10.04
-* '''OpenFOAM''' version 2.1.0
+ '''OpenFOAM''' version 2.1.0
-* '''ParaView''' version 3.12.0
+ '''ParaView''' version 3.12.0
 |-
@@ Line 265: / Line 265: @@
 | 08:55
 | In this tutorial, we learnt: * '''Solving a compressible flow problem'''
-* '''Velocity''' and '''pressure contour''' for the wedge and
+ '''Velocity''' and '''pressure contour''' for the wedge and
-* '''OpenFOAM utility''' for calculating the '''Mach number'''.
+ '''OpenFOAM utility''' for calculating the '''Mach number'''.
 |-
@@ Line 284: / Line 284: @@
 | 09:28
 | The Spoken Tutorial Project team:
-* Conducts workshops using spoken tutorials
+ Conducts workshops using spoken tutorials
-* Gives certificates to those who pass an online test.
+ Gives certificates to those who pass an online test.
-For more details, please write to us at '''contact@spoken-tutorial.org'''
+ For more details, please write to us at '''contact@spoken-tutorial.org'''
 |-

@@ Line 151: / Line 151: @@
 |-
 | 04:32
-| Now to view the geometry in the ''' command terminal ''''''type paraFoam''' and press enter This will open the '''paraview''' window
+| Now to view the geometry in the ''' command terminal ''' type '''paraFoam''' and press enter This will open the '''paraview''' window
 |-
@@ Line 235: / Line 235: @@
 |-
 | 07:48
-| Click '''APPLY''' scroll down.In '''volume fields''' '''Check''' the '''Ma'''box and again click '''APPLY'''
+| Click '''APPLY''' scroll down.In '''volume fields''' '''Check''' the '''Ma''' box and again click '''APPLY'''
 |-
@@ Line 251: / Line 251: @@
 |-
 | 08:29
-| We notice here that when the wedge is kept in supersonic flow it produce a shock across which the flow properties like temprature, pressure and density drastically changes
+| We notice here that when the wedge is kept in supersonic flow it produce a shock across which the flow properties like temprature, pressure
 |-
 |08:43
 | Now Let me switch back to the '''slides''' The solved tutorial can be '''validated''' with '''exact ''''''solution'''
 '''available '''in basic books of '''Aerodynamics''' by '''John D Anderson'''
-|-
-| 08:50
-| '''available '''in basic books of '''Aerodynamics''' by '''John D Anderson'''
 |-
@@ Line 281: / Line 279: @@
 |-
 | 09:28
-| 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
+| The Spoken Tutorial Project Team Conducts workshops using spoken tutorials
 |-
 | 09:41
-| Spoken Tutorials project is  part of Talk to a Teacher project, It is supported by the National Mission on Education through ICT, MHRD, Government of India. More information on the same is available at the following URL link http://spoken-tutorial.org/NMEICT-Intro
+| Spoken Tutorials project is  part of Talk to a Teacher project, It is supported by the National Mission on Education through ICT, MHRD, Government of India.
 |-

@@ Line 31: / Line 31: @@
 |-
 | 00:55
-| Inlet velocity is '''5 meters per second'''
+|The Inlet velocity is '''5 meters per second'''
 |-
@@ Line 51: / Line 51: @@
 |-
 | 01:28
-| In the '''terminal''' type path for '''supersonic flow''' over a '''wedge'''
+| In the command '''terminal''' type path for '''supersonic flow''' over a '''wedge'''
 |-
@@ Line 59: / Line 59: @@
 |-
 | 01:40
-|  '''cd tutorial - '''Press Enter  '''cd compressible - '''Press Enter  '''cd rhoCentralFoam - '''Press Enter
+|  '''cd tutorial - ''' and Press Enter  '''cd compressible - ''' and Press Enter  '''cd rhoCentralFoam - ''' and Press Enter
 |-
 |02:02
-| '''cd wedge15Ma5 and press enter'''
+| '''cd wedge15Ma5 '''
 |-
@@ Line 95: / Line 95: @@
 |-
 | 02:54
-| To view'''blockMeshDict file''' type '''gedit''' space''' blockMeshDict'''  note that '''M and D '''here are capital and press enter
+| To view'''blockMeshDict file''' type '''gedit''' space''' blockMeshDict'''  note that '''M and D '''here are capital press enter
 |-
@@ Line 103: / Line 103: @@
 |-
 | 03:14
-| In this you need to '''calculate''' the '''co-ordinates''' for the wedge
+| In this you need to '''calculate''' the '''co-ordinate''' for the wedge
 |-
@@ Line 111: / Line 111: @@
 |-
 | 03:23
-| The rest of the data remain the same
+| The rest of the data remains the same
 |-
 |03:29
-| In '''boundary patches''' the boundaries are set as shown in the figure
+| In '''boundary patches'''  boundaries are set as shown in the figure
 |-
 | 03:33
-| Close the '''blockMeshDict file'''
+| Close  '''blockMeshDict file'''
 |-
@@ Line 139: / Line 139: @@
 |-
 | 04:02
-| This contains initial boundary condition for '''pressure,velocity and Temprature'''
+| This contains the initial boundary condition for '''pressure,velocity and Temperature'''
 |-
@@ Line 151: / Line 151: @@
 |-
 | 04:32
-| Now to view the geometry in the '''terminal ''''''type paraFoam''' and press enter This will open the '''paraview''' window
+| Now to view the geometry in the ''' command terminal ''''''type paraFoam''' and press enter This will open the '''paraview''' window
 |-
@@ Line 159: / Line 159: @@
 |-
 | 04:53
-| In this you can see the '''geometry''' is which is a '''rectangular'''  '''section upstream''' and changes to a '''wedge downstream''' Close the '''paraview''' window
+| In this you can see the '''geometry''' in which the '''rectangular'''  '''section upstream'''  changes to a '''wedge downstream''' Close the '''paraview''' window
 |-
@@ Line 187: / Line 187: @@
 |-
 | 05:49
-| Again on the left hand side of '''object inspector menu '''click '''APPLY'''
+| Again on the left hand side of '''object inspector menu click '''APPLY'''
 |-
 | 05:56
-| On the left side top in '''active variable control menu''''''you will see a drop down menu showing solid color.''' Now click on it  '''And change from solid color to capital U'''
+| On the left hand side top in '''active variable control menu''''''you will see a drop down menu showing solid color.''' Now click on it  '''And change from solid color to capital U'''
 |-
 | 06:14
-| Now make the '''color legend ON''' by clicking on left hand side top of '''active variable control menu''' and make the '''color legend ON''' '''click on it'''
+| 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'''
 |-
 | 06:28
-| On top of the '''paraview window''' you can see the '''VCR control''' Click on '''PLAY'''
+| On top of the '''Paraview window''' you can see the '''VCR control''' Click on '''PLAY'''
 |-
@@ Line 207: / Line 207: @@
 |-
 | 06:42
-| Now scroll down the  '''properties''' in '''object inspector menu''' on left hand side Now click on '''display''' besides '''properties'''
+| Now scroll down the  '''properties''' in '''object inspector menu''' on the left hand side Now click on '''display''' besides '''properties'''
 |-
@@ Line 223: / Line 223: @@
 |-
 | 07:26
-| Type '''Mach''' in the '''command terminal'''
+| Type '''Mach'''
 |-
@@ Line 235: / Line 235: @@
 |-
 | 07:48
-| Click '''APPLY''' scroll down.In '''volume fields''' '''Check''' the '''Ma '''box and click '''APPLY'''
+| Click '''APPLY''' scroll down.In '''volume fields''' '''Check''' the '''Ma'''box and again click '''APPLY'''
 |-
 | 08:04
-| On top of''' active variable control menu''' click on '''Solid Color''' and change it to '''Ma'''
+| On top of the''' active variable control menu''' click on '''Solid Color''' and change it to '''Ma'''
 |-
 | 08:11
-| In the '''VCR control''' menu click on '''PLAY''' and make the '''color legend ON'''
+| In the '''VCR control''' menu again click on '''PLAY''' and make the '''color legend ON'''
 |-