OpenFOAM/C3/Importing-mesh-file-in-OpenFOAM/English-timed - Revision history

PoojaMoolya at 13:08, 20 February 2017

2017-02-20T13:08:18Z

Sandhya.np14 at 09:47, 5 July 2016

2016-07-05T09:47:59Z

Sandhya.np14 at 07:46, 5 July 2016

2016-07-05T07:46:35Z

Pratik kamble at 10:09, 27 November 2015

2015-11-27T10:09:10Z

Pratik kamble: Created page with "{|border=1 | '''Time''' | '''Narration''' |- | 00:00 | Hello and welcome to the spoken tutorial on '''Importing Mesh files in OpenFOAM''' |- |00:07 | In this tutorial, you w..."

2015-11-27T10:08:43Z

Created page with "{|border=1 | '''Time''' | '''Narration''' |- | 00:00 | Hello and welcome to the spoken tutorial on '''Importing Mesh files in OpenFOAM''' |- |00:07 | In this tutorial, you w..."

New page

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

|-
| 00:00
| Hello and welcome to the spoken tutorial on '''Importing Mesh files in OpenFOAM'''

|-
|00:07
| In this tutorial, you will learn to:
* import '''Mesh files'''
* from a meshing software
* in '''OpenFOAM'''.

|-
|00:14
| To record this tutorial I am using
* '''Linux''' Operating system '''Ubuntu''' version 12.04.
* '''OpenFOAM''' version 2.1.1
* '''ParaView''' version 3.12.0

|-
|00:26
|As a pre-requisite, the user should know how to generate a Mesh in software like -
'''Gambit, Ansys ICEM , CFX, Salome etc'''.

|-
|00:40
|*Using '''blockMesh''', we can easily make '''simple''' geometries.*For example- '''box, pipe''' etc.
*It is difficult to create complex geometries using '''blockMesh'''.

|-
|00:53
|*But '''OpenFOAM''' supports importing '''mesh''' from third party '''meshing''' software.
*There are '''commands''' available in '''OpenFOAM''', to import these '''mesh''' files.

|-
|01:05
|We will now learn to '''import''' these files.

|-
|01:08
|Here is the geometry of our case.
We have a '''square cylinder'''
*length 1m and height 1m.
*'''Inlet velocity''' is 1 m/s

|-
|01:22
|*We are solving this for a '''Reynolds Number (Re)''' = 100 *The '''domain''' chosen is '''40'''m by '''60'''m *The '''Boundary conditions are as shown in the diagram'''

|-
|01:36
|This is the '''mesh''' file generated in a '''meshing''' software.

|-
|01:40
|In your '''OpenFOAM working directory''', go to the '''icoFoam solver''' and click on it.

|-
|01:47
|Now Create a folder by the name '''cylinder'''

|-
| 01:52
|Now go to the '''cavity case'''.Copy the '''0 and system''' folders from the '''cavity''' case.

|-
|01:59
|Paste this inside the '''cylinder''' folder.Note that, you do not need the '''constant''' folder.

|-
|02:10
|On my '''desktop''', I have a '''Fluent mesh file''' with a '''.(dot) msh''' extension.It is named as '''cylmesh.msh'''

|-
|02:23
|Copy-and-paste this file in the '''cylinder''' folder in '''icoFoam'''.Our setup is now ready.

|-
|02:32
|Open the '''command terminal'''.Type '''run''' and press '''Enter'''.

|-
|02:37
|Type '''cd tutorials'''; press '''Enter'''.

|-
|02:42
|Type '''cd incompressible'''; press '''Enter'''.Type '''cd icoFoam'''; press '''Enter'''Type '''cd cylinder''' and press '''Enter'''.

|-
|02:58
|For a '''Fluent mesh''' file, in the '''command terminal''' we need to type'''fluentMeshToFoam note that (MTF) are capital here (space) cylmesh.msh'''and press '''Enter'''

|-
|03:20
|On the '''terminal''' you will see that the '''mesh file''' is converted to '''openfoam data file'''

|-
|03:28
|Now go back to the '''cylinder''' folder

|-
|03:31
|The '''constant''' folder has been generated.Click on the '''constant''' folder to open it.

|-
|03:38
|'''Transport Property''' file is missing from the '''constant''' folder

|-
|03:42
|Go two levels back and copy the '''transport property''' from the '''constant folder''' of the '''cavity case'''.

|-
|03:53
|Paste this inside the '''constant''' folder of '''cylinder''' which we created just now.We will keep the default '''viscosity'''.

|-
|04:05
|Switch back to the '''terminal'''.

|-
|04:08
|'''Note that''' we do not run '''blockMesh''' command here.To view the '''boundary conditions''' in the '''mesh''' file

|-
|04:15
|Go to '''Constant > polyMesh'''.Type '''ls'''.You will see the '''boundary''' file.

|-
|04:25
|Open it in any '''editor''' of your choice.

|-
|04:30
|The '''boundary condition''' names are as seen in the '''geometry''' slide.

|-
|04:36
|In case of any error with the '''boundary names''', you can refer the '''boundary file'''close this.

|-
|04:45
|In the '''terminal''', go two levels back and go to the '''0''' folder.

|-
|04:52
|Open the '''pressure file''' in the '''0 folder'''.

|-
|04:57
|Note that the '''boundary''' names should exactly match with the '''boundary file'''.Change them if needed.Close this file.

|-
|05:08
|Go one level back and go to the''' system '''folder.

|-
|05:15
|Open the '''controlDict''' file.

|-
|05:18
|We will change the end time of '''controlDict''' file.Close this.

|-
|05:25
|Go one level back.To start the '''iterations''', type '''icoFoam''' and press '''Enter'''''Iterations''' running will be seen in the '''terminal'''.

|-
|05:39
|To view the '''geometry''', type '''paraFoam''' and press '''Enter'''.In the '''ParaView window''', click on the '''Apply''' button in the '''object inspector''' menu.

|-
|05:53
|You can see the '''geometry'''.In the '''Active variable control''' menu, change from '''solid color''' to '''U velocity'''

|-
|06:03
|The initial '''velocity''' condition is seen here.

|-
|06:08
|Click on the '''play''' button in the '''VCR menu''' on the top right-hand side.

|-
| 06:15
|We can see the '''velocity contours''' with the passage of time.

|-
|06:20
|Close the ''' paraview '''window.

|-
|06:23
|Here is a list of command to''' import geometry''' from other '''meshing software'''.
* '''ANSYS : ansysMeshToFoam space <filename>'''
*'''IDEAS : ideasTofoam space <filename>'''
*'''CFX : cfxToFoam space <filename>'''
*'''SALOME : ideasUnvToFoam space <filename>'''

This brings us to the end of the tutorial.

|-
|06:54
|As an '''assignment'''
* Try importing the '''mesh''' file of circular cylinder.
* '''Mesh''' file by the name '''circcyl.msh'''is provided with this tutorial.
* Solve it using the '''icoFoam solver'''.

|-
|07:12
|In this tutorial we learnt :
*Importing geometry from other '''meshing''' software.

|-
|07:18
|Watch 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

|-
|07:30
|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 contact@spoken-tutorial.org

|-
|07:46
|Spoken Tutorials Project is a part of the Talk to a Teacher project,It is supported by the National Mission on Education through ICT, MHRD,Government of India.This project is coordinated by http://spoken-tutorialMore information on the same is available at the following URL linkhttp://spoken-tutorial.org/NMEICT-Intro

|-
|08:03
|This is Rahul Joshi from IIT BOMBAY signing off.Thanks for joining

|-
|}

@@ Line 15: / Line 15: @@
 |00:14
 | To record this tutorial, I am using:
-* '''Linux Operating system Ubuntu''' version 12.04
+'''Linux Operating system Ubuntu''' version 12.04
-* '''OpenFOAM''' version 2.1.1
+'''OpenFOAM''' version 2.1.1
-* '''ParaView''' version 3.12.0
+'''ParaView''' version 3.12.0
 |-
@@ Line 41: / Line 41: @@
 |01:08
 |Here is the '''geometry''' of our case.
-We have a square cylinder:
+We have a square cylinder:length 1m and height 1m.'''Inlet velocity''' is 1 m/s.
-* length 1m and height 1m.
-* '''Inlet velocity''' is 1 m/s.
 |-
@@ Line 198: / Line 196: @@
 |06:23
 |Here is a list of commands to''' import geometry''' from other '''meshing software'''.
-* '''ANSYS : ansysToFoam space <filename>'''
+'''ANSYS : ansysToFoam space <filename>'''
-* '''IDEAS : ideasTofoam space <filename>'''
+'''IDEAS : ideasTofoam space <filename>'''
-* '''CFX : cfxToFoam space <filename>'''
+'''CFX : cfxToFoam space <filename>'''
-* '''SALOME : ideasUnvToFoam space <filename>'''
+'''SALOME : ideasUnvToFoam space <filename>'''
 This brings us to the end of the tutorial.
@@ Line 208: / Line 206: @@
 |06:54
 |As an assignment-
-* Try importing the '''mesh''' file of a circular cylinder.
+Try importing the '''mesh''' file of a circular cylinder.
-* '''Mesh''' file by the name '''circcyl.msh'''is provided with this tutorial.
+'''Mesh''' file by the name '''circcyl.msh'''is provided with this tutorial.
 Solve it using the ''''icoFoam' solver'''.
@@ Line 226: / Line 224: @@
 |07:30
 |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: '''contact@spoken-tutorial.org'''

@@ Line 97: / Line 97: @@
 |-
 |03:20
-|On the terminal you will see that the '''mesh file''' is converted to '''openfoam data file'''
+|On the terminal, you will see that the '''mesh''' file is now converted to '''openFoam data file'''.
 |-
 |03:28
-|Now go back to the '''cylinder''' folder
+|Now, go back to the '''cylinder''' folder.
 |-
 |03:31
-|The '''constant''' folder has been generated.Click on the '''constant''' folder to open it.
+|The '''constant''' folder has been generated. Click on the '''constant''' folder to open it.
 |-
 |03:38
-|'''Transport Property''' file is missing from the '''constant''' folder
+|'''transport Property''' file is missing from the '''constant''' folder.
 |-
 |03:42
-|Go two levels back and copy the '''transport property''' from the '''constant folder''' of the '''cavity case'''.
+|Go two levels back and copy the '''transport property''' from the '''constant''' folder of the '''cavity case'''.
 |-
 |03:53
-|Paste this inside the '''constant''' folder of '''cylinder''' which we created just now.We will keep the default '''viscosity'''.
+|'''Paste''' this inside the '''constant''' folder of '''cylinder''' which we created just now. We will keep the default '''viscosity'''.
 |-
@@ Line 125: / Line 125: @@
 |-
 |04:08
-|'''Note that''' we do not run '''blockMesh''' command here.To view the '''boundary conditions''' in the '''mesh''' file
+|Note that we do not run '''blockMesh''' command here. To view the '''boundary conditions''' in the '''mesh''' file,
 |-
 |04:15
-|Go to '''Constant > polyMesh'''.Type '''ls'''.You will see the '''boundary''' file.
+|go to '''Constant > polyMesh'''. Type "ls". You will see the '''boundary''' file.
 |-
@@ Line 141: / Line 141: @@
 |-
 |04:36
-|In case of any error with the '''boundary names''', you can refer the '''boundary file'''close this.
+|In case of any error with the '''boundary names''', you can refer the '''boundary file'''. Close this.
 |-
 |04:45
-|In the '''terminal''', go two levels back and go to the '''0''' folder.
+|In the terminal, go two levels back and go to the '0' (zero) folder.
 |-
 |04:52
-|Open the '''pressure file''' in the '''0 folder'''.
+|Open the '''pressure''' file in the '0' (zero) folder.
 |-
 |04:57
-|Note that the '''boundary''' names should exactly match with the '''boundary file'''.Change them if needed.Close this file.
+|Note that the '''boundary''' names should exactly match with the '''boundary''' file. Change them if needed. Close this file.
 |-
@@ Line 165: / Line 165: @@
 |-
 |05:18
-|We will change the end time of '''controlDict''' file.Close this.
+|We will change the end time of the '''controlDict''' file. Close this.
 |-
 |05:25
-|Go one level back.To start the '''iterations''', type '''icoFoam''' and press '''Enter'''''Iterations''' running will be seen in the '''terminal'''.
+|Go one level back. To start the '''iterations''', type "icoFoam" and press '''Enter'''. Iterations running will be seen in the terminal.
 |-
 |05:39
-|To view the '''geometry''', type '''paraFoam''' and press '''Enter'''.In the '''ParaView window''', click on the '''Apply''' button in the '''object inspector''' menu.
+|To view the '''geometry''', type '''paraFoam''' and press '''Enter'''. In the '''ParaView''' window, click on the '''Apply''' button in the '''object inspector''' menu.
 |-
 |05:53
-|You can see the '''geometry'''.In the '''Active variable control''' menu, change from '''solid color''' to '''U velocity'''
+|You can see the '''geometry'''. In the '''Active variable control''' menu, change from '''solid color''' to ''''U' velocity'''.
 |-
@@ Line 185: / Line 185: @@
 |-
 |06:08
-|Click on the '''play''' button in the '''VCR menu''' on the top right-hand side.
+|Click on the '''play''' button in the '''VCR menu''', on the top right-hand side.
 |-
@@ Line 197: / Line 197: @@
 |-
 |06:23
-|Here is a list of command to''' import geometry''' from other '''meshing software'''.
+|Here is a list of commands to''' import geometry''' from other '''meshing software'''.
-* '''ANSYS : ansysMeshToFoam space <filename>'''
+* '''ANSYS : ansysToFoam space <filename>'''
-*'''IDEAS : ideasTofoam space <filename>'''
+* '''IDEAS : ideasTofoam space <filename>'''
-*'''CFX : cfxToFoam space <filename>'''
+* '''CFX : cfxToFoam space <filename>'''
-*'''SALOME : ideasUnvToFoam space <filename>'''
+* '''SALOME : ideasUnvToFoam space <filename>'''
 This brings us to the end of the tutorial.
@@ Line 207: / Line 207: @@
 |-
 |06:54
-|As an '''assignment'''
+|As an assignment-
-* Try importing the '''mesh''' file of circular cylinder.
+* Try importing the '''mesh''' file of a circular cylinder.
 * '''Mesh''' file by the name '''circcyl.msh'''is provided with this tutorial.
-* Solve it using the '''icoFoam solver'''.
+Solve it using the ''''icoFoam' solver'''.
 |-
 |07:12
-|In this tutorial we learnt :
+|In this tutorial, we learnt importing geometry from other '''meshing''' softwares.
-*Importing geometry from other '''meshing''' software.
 |-
 |07:18
-|Watch 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
+|Watch the video available at this URL:
 |-
 |07:30
-|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 contact@spoken-tutorial.org
+|The Spoken Tutorial project team-
 |-
 |07:46
-|Spoken Tutorials Project is a part of the Talk to a Teacher project,It is supported by the National Mission on Education through ICT, MHRD,Government of India.This project is coordinated by http://spoken-tutorialMore information on the same is available at the following URL linkhttp://spoken-tutorial.org/NMEICT-Intro
+|'''Spoken Tutorial''' project is a part of the '''Talk to a Teacher''' project. It is supported by the National Mission on Education through ICT, MHRD, Government of India. More information on this mission is available at the following URL:
 |-
 |08:03
-|This is Rahul Joshi from IIT BOMBAY signing off.Thanks for joining
+|This is Rahul Joshi from '''IIT Bombay''', signing off. Thanks for joining.
 |-
 |}

@@ Line 5: / Line 5: @@
 |-
 | 00:00
-| Hello and welcome to the spoken tutorial on '''Importing Mesh files in OpenFOAM'''
+| Hello and welcome to the '''spoken tutorial''' on '''Importing Mesh files in OpenFOAM'''.
 |-
 |00:07
 | In this tutorial, you will learn to:
-* Import '''Mesh files'''
+'''Import''' '''Mesh''' files from a meshing software in OpenFOAM.
-* from a meshing software
-* in '''OpenFOAM'''.
 |-
 |00:14
-| To record this tutorial I am using
+| To record this tutorial, I am using:
-* '''Linux''' Operating system '''Ubuntu''' version 12.04.
+* '''Linux Operating system Ubuntu''' version 12.04
 * '''OpenFOAM''' version 2.1.1
 * '''ParaView''' version 3.12.0
@@ Line 23: / Line 21: @@
 |-
 |00:26
-|As a pre-requisite, the user should know how to generate a Mesh in software like -
+|As a prerequisite, the user should know how to generate a '''Mesh''' in softwares like -
-'''Gambit, Ansys ICEM , CFX, Salome etc'''.
+'''Gambit, Ansys ICEM , CFX, Salome''' etc.
 |-
 |00:40
-|*Using '''blockMesh''', we can easily make '''simple''' geometries.*For example- '''box, pipe''' etc.
+|Using '''blockMesh''', we can easily make simple geometries. For example- '''box, pipe''' etc.
-*It is difficult to create complex geometries using '''blockMesh'''.
+It is difficult to create complex geometries using '''blockMesh'''.
 |-
 |00:53
-|*But '''OpenFOAM''' supports importing '''mesh''' from third party '''meshing''' software.
+|But OpenFOAM supports importing '''mesh''' from third party meshing software.
-*There are '''commands''' available in '''OpenFOAM''', to import these '''mesh''' files.
+There are '''commands''' available in OpenFOAM to import these '''mesh''' files.
 |-
@@ Line 42: / Line 40: @@
 |-
 |01:08
-|Here is the geometry of our case.
+|Here is the '''geometry''' of our case.
-We have a '''square cylinder'''
+We have a square cylinder:
-*length 1m and height 1m.
+* length 1m and height 1m.
-*'''Inlet velocity''' is 1 m/s
+* '''Inlet velocity''' is 1 m/s.
 |-
 |01:22
-|*We are solving this for a '''Reynolds Number (Re)''' = 100 *The '''domain''' chosen is '''40'''m by '''60'''m *The '''Boundary conditions are as shown in the diagram'''
+|We are solving this for a '''Reynolds Number (Re)''' = 100.
 |-
@@ Line 57: / Line 57: @@
 |-
 |01:40
-|In your '''OpenFOAM working directory''', go to the '''icoFoam solver''' and click on it.
+|In your OpenFOAM working directory, go to the '''icoFoam solver''' and click on it.
 |-
 |01:47
-|Now Create a folder by the name '''cylinder'''
+|Now, create a folder by the name '''cylinder'''.
 |-
 | 01:52
-|Now go to the '''cavity case'''.Copy the '''0 and system''' folders from the '''cavity''' case.
+|Now go to the '''cavity case'''. '''Copy''' the '0' (zero0 and '''system''' folders from the '''cavity''' case.
 |-
 |01:59
-|Paste this inside the '''cylinder''' folder.Note that, you do not need the '''constant''' folder.
+|'''Paste''' this inside the '''cylinder''' folder. Note that you do not need the '''constant''' folder.
 |-
 |02:10
-|On my '''desktop''', I have a '''Fluent mesh file''' with a '''.(dot) msh''' extension.It is named as '''cylmesh.msh'''
+|On my desktop, I have a '''Fluent mesh''' file with a '''.(dot) msh''' extension. It is named as '''cylmesh.msh'''.
 |-
 |02:23
-|Copy-and-paste this file in the '''cylinder''' folder in '''icoFoam'''.Our setup is now ready.
+|Copy-and-paste this file in the '''cylinder''' folder, in '''icoFoam'''. Our setup is now ready.
 |-
 |02:32
-|Open the '''command terminal'''.Type '''run''' and press '''Enter'''.
+|Open the '''command terminal'''. Type "run" and press '''Enter'''.
 |-
 |02:37
-|Type '''cd tutorials'''; press '''Enter'''.
+|Type: '''cd space tutorials'''; press '''Enter'''.
 |-
 |02:42
-|Type '''cd incompressible'''; press '''Enter'''.Type '''cd icoFoam'''; press '''Enter'''Type '''cd cylinder''' and press '''Enter'''.
+|Type: '''cd space incompressible''' and press '''Enter'''. Type '''cd space  icoFoam'''; press '''Enter'''. Type '''cd space cylinder''' and press '''Enter'''.
 |-
 |02:58
-|For a '''Fluent mesh''' file, in the '''command terminal''' we need to type'''fluentMeshToFoam note that (MTF) are capital here (space) cylmesh.msh'''and press '''Enter'''
+|For a '''Fluent mesh''' file, in the command terminal, we need to type "fluentMeshToFoam" (Note that M, T, F are capital here) (space) "cylmesh.msh" and press '''Enter'''.
 |-
 |03:20
-|On the '''terminal''' you will see that the '''mesh file''' is converted to '''openfoam data file'''
+|On the terminal you will see that the '''mesh file''' is converted to '''openfoam data file'''
 |-