OpenFOAM/C2/Creating-curved-geometry-in-OpenFOAM/English-timed - Revision history

DeepaVedartham at 06:21, 11 April 2019

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PoojaMoolya at 09:26, 10 March 2017

2017-03-10T09:26:43Z

PoojaMoolya at 09:26, 10 March 2017

2017-03-10T09:26:01Z

Sandhya.np14 at 07:24, 22 June 2016

2016-06-22T07:24:43Z

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PoojaMoolya at 11:43, 6 November 2015

2015-11-06T11:43:44Z

PoojaMoolya at 11:03, 23 October 2015

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Gaurav at 12:11, 9 July 2014

2014-07-09T12:11:10Z

Sneha at 03:54, 6 May 2013

2013-05-06T03:54:07Z

Sneha at 03:52, 6 May 2013

2013-05-06T03:52:41Z

Sneha: Created page with ' {| style="border-spacing:0;" |Visual Cue | Narration |- | 00:01 | Hello and welcome to the spoken tutorial on '''creating Curved geometry in OpenFOAM''' |- | 00:07 | In this …'

2013-05-06T03:52:12Z

Created page with ' {| style="border-spacing:0;" |Visual Cue | Narration |- | 00:01 | Hello and welcome to the spoken tutorial on '''creating Curved geometry in OpenFOAM''' |- | 00:07 | In this …'

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{| style="border-spacing:0;"
|Visual Cue
| Narration

|-
| 00:01
| Hello and welcome to the spoken tutorial on '''creating Curved geometry in OpenFOAM'''

|-
| 00:07
| In this tutorial I will show you

|-
| 00:09
|'''Steps''' for creating a '''curved geometry in openfoam'''

|-
| 00:14
|Viewing the '''results in paraview'''

|-
| 00:18
|To record this tutorial

|-
| 00:19
|I am using '''Linux Operating system Ubuntu version 10.04'''. '''OpenFOAM version 2.1.0 '''

|-
| 00:28
|'''ParaView version 3.12.0 '''

|-
| 00:33
|We will create a '''geometry''' for '''flow over cylinder'''.

|-
| 00:37
|Note that I am using this case just for '''explanation'''.

|-
| 00:42
|The '''cylinder '''is in a form of a '''semi circle.'''

|-
| 00:45
|'''Meshing is a body fitted grid'''.

|-
| 00:49
|The entire '''geometry''' is divided into blocks.

|-
| 00:54
|We break the '''semi circle''' into equal number of '''parts'''.

|-
| 00:59
|Now minimise this

|-
| 01:04
| Open a '''blockMeshDict '''file of the previous tutorial

|-
| 01:08
|I have already opened it

|-
| 01:12
|Scroll down, for '''simple geometries''' you can see that '''edges '''is kept empty

|-
| 01:21
| Now Create a new '''blockMeshDict''' file

|-
| 01:23
|To do this let us '''minimise''' this first

|-
| 01:27
| Now '''Right click > create document > empty file'''

|-
| 01:34
| name this as '''blockMeshDict'''.

|-
| 01:41
|Note that '''M and D here are capital'''

|-
| 01:46
|'''Open this'''

|-
| 01:51
| Now you can copy the initial few lines from the '''lid driven cavity upto convertTometers'''

|-
| 01:58
|Go up '''copy''' this upto '''convertToMeters'''

|-
| 02:04
| '''Copy this''' and '''paste it''' in the new '''blockMeshDict file'''

|-
| 02:12
|Now Change the '''convert to meters''' from '''point one to one'''

|-
| 02:18
| As our '''geometry''' is in '''meters''' we will keep this as one

|-
| 02:24
| Now press enter , press enter again

|-
|02:28
| After this you need to enter the '''co-ordinates''' of the''' geometry''' in '''vertices'''

|-
| 02:35
|Let me switch back to the slide.Note that the points should be ordered in such a way starting from '''0,1,2,3''' and so on. as shown in the figure

|-
| 02:47
| Minimise the slide. Now type '''vertices''' in the '''blockMeshDict''' file and press enter

|-
| 02:57
| Insert the '''open bracket ''' and Press enter

|-
| 03:00
| Now enter the '''co-ordinates''' of a geometry as shown in the '''diagram'''.

|-
| 03: 05
| Let me switch back to the slides

|-
| 03:08
| For '''explanation''' I will use '''right half of the semi-circle'''

|-
| 03:12
| Enter the values for the points in the figure starting '''from 0'''

|-
| 03:16
|Let me switch back to the '''blockMeshDict''' file

|-
|03:20
| leave some space and enter '''co-ordinates''' of '''point 0'''

|-
| 03:27
| Open close bracket enter '''(0.5 (space) 0 (space) 0)'''. Press Enter

|-
| 03:36
| Again leave some space , '''open close bracket '''

|-
| 03:39
|Enter co-ordinates for point (1 (space) 0 (space) 0) Press enter

|-
| 03:45
|Now leave two '''vertical spaces''' , again press enter

|-
| 03:49
| again press enter

|-
| 03:51
| leave some space and enter the '''co-ordinate '''for point number 4

|-
| 03:57
| '''Open close bracket''',''' enter (0.707 (space) 0.707 (space) 0)'''

|-
| 04:05
| Press enter. Leave some space

|-
| 04:09
|'''Open close bracket'''

|-
| 04:11
| '''Enter the co-ordinates for the point 5'''

|-
| 04:13
|'''Enter (0.353 (space) 0.353 (space) 0)''', press enter

|-
|04:22
| '''I leave 4 vertical spaces''' and

|-
| 04:24
| '''Enter co-ordinates for point number 9'''

|-
| 04:27
| '''1 2 3 4 ,''' again press enter, leave some space

|-
| 04:34
|'''Open close bracket '''

|-
| 04:36
| Enter '''(0 (space) 1 (space) 0)''', press enter

|-
| 04:42
| Leave some space

|-
| 04:44
|Enter '''co-ordinates''' for '''point number 10'''

|-
| 04:47
| Open close bracket''' (0 (space) 0.5 (space) 0)''' and press enter

|-
| 04:55
| Similarly '''enter the co-ordinates for the remaining points''' in the geometry.

|-
| 05:00
|Insert a close bracket put a''' semi-colon '''Press enter

|-
| 05:05
|Again press enter

|-
| 05:07
| Now '''Type blocks''' press enter

|-
| 05:13
|Insert a '''open bracket''' press enter

|-
| 05:17
| Let me switch back to the slides

|-
| 05:20
| The'''Block numbers''' are circled as shown in the figure

|-
|05:25
|Now let me switch back to the '''blockMeshDict file'''

|-
| 05:28
| Leave some space

|-
| 05:31
|Now Enter the type of '''block i.e. Hex'''

|-
| 05:35
|leave some space

|-
| 05:37
| Now enter the''' points''' for the '''blocks'''

|-
| 05:41
|'''Open close brackets'''

|-
| 05:44
|Leave some space

|-
| 05:46
| the '''simple grading''' can be kept as '''(1 1 1) ''' press enter

|-
| 05:55
| For creating the '''blocks''' please refer to the '''tutorial'''

|-
| 05:58
|on '''creating simple geometry in OpenFOAM'''

|-
| 06:03
|'''Note that''' there will be more number of '''blocks''' in this example

|-
| 06:08
|Now '''Insert a close bracket'''

|-
| 06:10
|'''Insert a semi-colon''' press enter. Again press enter

|-
| 06:16
| in the next line type '''edges''' and press enter

|-
| 06:22
|insert a '''open bracket''' and press enter

|-
| 06:26
| Here you need to enter the '''points''' which are the '''end points of the arcs'''

|-
| 06:31
|Leave some space and '''type arc''' leave some space

|-
| 06:37
|Type the points which are the '''end points of the arc'''

|-
| 06:41
|Let me switch back to the slide.Now insert the '''end points of the arc'''

|-
| 06:47
|In this we get,We '''start''' with arc '''0 5'''

|-
| 06:53
|Let me switch back to the '''blockMeshDict file'''

|-
| 06:56
|Enter''' 0 space 5'''

|-
| 07:00
| Leave some space

|-
| 07:02
|Insert '''open close bracket'''

|-
|07:04
| In the bracket enter the co-ordinate of any '''intermediate''' point in between the two '''arc points'''.

|-
| 07:12
|Now Let me switch back again to slides

|-
| 07:15
| In the figure you can see that you have to pick up a point in between the two end points of the arc.

|-
| 07:24
|In this geometry I have picked up '''right half''' of the circle

|-
| 07:28
| Using '''simple geometric relations'''

|-
| 07:31
|you can find the co-ordinates of the intermediate point as shown in the semi-circle

|-
| 07:39
| Similarly you can '''repeat''' the procedure for rest of the '''semi-circle geometry'''

|-
| 07:45
|Now let me switch back to the '''blockMeshDict file'''

|-
| 07:49
| press enter

|-
| 07:51
| '''Note that there are more number of arcs in this example'''

|-
| 08:00
|''' Insert a close bracket'''

|-
| 08:03
|'''Insert a semi -colon press enter''' again press enter

|-
| 08:08
| |Now '''Enter the boundary patches after arcs'''

|-
| 08:11
|'''Refer to the tutorial on Simple geometry in OpenFOAM '''

|-
| 08:15
|For entering the '''boundary patches'''

|-
| 08:18
| Enter '''boundary''',press enter

|-
| 08:20
|'''Insert open bracket press enter'''.''' Insert close bracket semi-colon press enter'''

|-
| 08:27
|Again press enter

|-
| 08:29
| Now In the next line type '''mergePatchPairs'''

|-
| 08:35
|Note that '''P here is capital'''

|-
| 08:37
| Press enter

|-
| 08:39
|Insert a '''open bracket''' press enter

|-
| 08: 42
| Since there are '''no patches''' to be '''merged''' this can be kept empty

|-
| 08:46
|Insert a '''close bracket'''

|-
| 08:48
|Insert a '''semi -colon '''and press enter

|-
| 08:51
|Let me switch back to the slides

|-
| 08:54
|Similarly enter the '''co-ordinate''' points for the points in the '''front face''' of unit thickness of the '''geometry'''

|-
| 09:01
|as shown in the figure

|-
| 09:03
| Open a '''Command terminal'''

|-
| 09:06
| In the '''command terminal''' type the path for your case file

|-
| 09:09
| I have already set the path for the '''tutorial case of flow over cylinder'''

|-
| 09:15
| In the '''terminal''' type '''blockMesh '''for '''meshing''' the geometry''' and press enter'''

|-
| 09:23
|Meshing is done

|-
|09:25
|Now '''Type paraFoam''' in the terminal and press enter to view the geometry

|-
|09:32
| Let me drag this to the capture area

|-
| 09:35
| Now on '''left-hand''' side of '''object inspector menu''' click '''Apply'''

|-
| 09:42
| '''geometry''' will be created as seen in the '''paraview window'''

|-
| 09:47
| Scroll down the '''Object inspector menu'''

|-
|09:50
| '''Check or uncheck the Mesh field box'''

|-
| 09:55
| You can see '''different regions''' of the geometry.

|-
| 09:58
|You can also see the''' wire frame '''of the geometry

|-
| 10:01
|On top of the'''active variable control menu''' in the '''drop down menu'''

|-
| 10:07
|Change from '''Surface to wireframe'''

|-
| 10:11
| You can see the '''wireframe model''' of the geometry

|-
| 10:16
|close this. Let me switch back to the slides

|-
| 10:21
| In this tutorial we learnt:

|-
| 10:23
|How to '''create a curved geometry'''.

|-
| 10:26
|How to '''enter points for edges in OpenFOAM'''

|-
| 10:29
|This brings us to the end of the tutorial

|-
|10:33
| As an Assignment

|-
| 10:34
|Create a geometry with '''inner semi-circle of radius 2 meters'''

|-
| 10:39
|'''and outer semi- circle of radius 4 meters'''

|-
| 10:44
|and View the geometry in '''paraview'''

|-
| 10:48
| Watch the video available at this URL: http://spoken-tutorial.org/What_is_a_Spoken_Tutorial

|-
| 10:51
|It summarizes the Spoken Tutorial project.

|-
| 10:53
|If you do not have good bandwidth, you can download and watch it.

|-
| 10:58
| The Spoken Tutorial Project Team

|-
| 11:00
|-Conducts workshops using spoken tutorials

|-
| 11:04
|-Gives certificates to those who pass an online test

|-
| 11:07
|-For more details, please write to contact@spoken-tutorial.com

|-
| 11:15
| Spoken Tutorials are part of Talk to a Teacher project,

|-
| 11:18
|It is supported by the National Mission on Education through ICT, MHRD, Government of India.

|-
| 11:24
|More information on the same is available at the following URL link http://spoken-tutorial.org/NMEICT-Intro

|-
| 11:29
| This is Rahul Joshi from IIT BOMBAY signing off. Thanks for joining

|}

@@ Line 48: / Line 48: @@
 |-
-| 00:49
+|00:49
 |The entire geometry is divided into '''block'''s.
 |-
@@ Line 57: / Line 56: @@
 |-
-| 00:58
+|00:58
 |Now minimize this.
@@ Line 73: / Line 72: @@
 |-
-|  01:20
+| 01:20
-|   Now Create a new 'blockMeshDict' file.
+| Now Create a new 'blockMeshDict' file.
 |-
@@ Line 85: / Line 84: @@
 |-
-|  01:34
+| 01:34
 | Name this as 'blockMeshDict'.

@@ Line 13: / Line 13: @@
 |-
 | 00:09
-|* Steps for creating  a curved geometry in openfoam.
+| Steps for creating  a curved geometry in openfoam.
 |-
 | 00:14
-|* Viewing the results in '''paraview'''
+| Viewing the results in '''paraview'''
 |-
@@ Line 190: / Line 190: @@
 |-
 | 04:09
-|Open close bracket.
+|Open close bracket.Enter the co-ordinates for the  point 5.
-−
-|-
-|  04:10
-|  Enter the co-ordinates for the  point 5.
 |-
@@ Line 205: / Line 201: @@
 |-
-|  04:27
+| 04:27
 | 1 2 3 4 , again press '''Enter''', leave some space.
@@ Line 238: / Line 234: @@
 |-
 | 05:05
-|Again press '''Enter'''.
+|Again press '''Enter'''.Now, type "blocks", press '''Enter'''.
-−
-|-
-| 05:06
-| Now, type "blocks", press '''Enter'''.
 |-
@@ Line 498: / Line 490: @@
 |-
 | 10:16
-| In this tutorial, we learnt:
+| In this tutorial, we learnt:How to create a curved geometry.
-−
-|-
-| 10:17
-|* How to create a curved geometry.
 |-
 | 10:20
-|* How to enter points for edges in '''OpenFOAM'''.
+|How to enter points for edges in '''OpenFOAM'''.
 |-
@@ Line 514: / Line 502: @@
 |-
 |10:28
-| As an Assignment-
+| As an Assignment-Create a geometry with inner semi-circle of radius 2 meters and outer semi- circle of radius 4 meters  and view the geometry in '''paraview'''.
-−
-|-
-| 10:29
-|Create a geometry with inner semi-circle of radius 2 meters and outer semi- circle of radius 4 meters  and view the geometry in '''paraview'''.
 |-
@@ Line 538: / Line 522: @@
 |-
 | 10:56
-|* Conducts workshops using spoken tutorials
+| Conducts workshops using spoken tutorials
 |-
 | 10:58
-|* Gives certificates to those who pass an online test.
+| Gives certificates to those who pass an online test.
 |-

@@ Line 318: / Line 318: @@
 |-
 | 06:46
-|In this we get, we start with arc '''0 5'''
+|In this figure, we start with arc '''0 5'''
 |-
@@ Line 390: / Line 390: @@
 |-
 | 08:15
-|Insert open bracket  press '''Enter'''. Insert close bracket  semi-colon press '''Enter'''
+|Insert open bracket  press '''Enter'''. Insert close bracket  semi-colon, press '''Enter'''
 |-
@@ Line 438: / Line 438: @@
 |-
 | 09:00
-| In the '''command terminal''' type the path for your case file
+| In the '''command terminal''' type the path for your case
 |-
@@ Line 454: / Line 454: @@
 |-
 |09:20
-|Now type '''paraFoam''' in the '''terminal'''  and press '''enter''' to view the geometry
+|Now type '''paraFoam''' in the '''terminal'''  and press  '''enter''' to view the geometry
 |-

@@ Line 1: / Line 1: @@
 {| border=1
-|| ''Time'''
+|| '''Time'''
 || '''Narration'''

@@ Line 1: / Line 1: @@
+{| border=1
-{| style="border-spacing:0;"
+|| ''Time'''
-|Visual Cue
+|| '''Narration'''
 | Narration
 |-

@@ Line 1: / Line 1: @@
 {| border=1
 || ''Time'''
@@ Line 499: / Line 498: @@
 |-
-| 08: 42
+| 08:42
 | Since there are '''no patches''' to be '''merged''' this can be kept empty
@@ Line 525: / Line 524: @@
 | 09:01
 |as shown in the figure
 |-
@@ Line 657: / Line 653: @@
 |-
 | 11:00
-|-Conducts workshops using spoken tutorials
+|Conducts workshops using spoken tutorials
 |-
 | 11:04
-|-Gives certificates to those who pass an online test
+|Gives certificates to those who pass an online test
 |-
 | 11:07
-|-For more details, please write to contact@spoken-tutorial.com
+|For more details, please write to contact@spoken-tutorial.com
 |-
-| 11:15
+|11:15
-| Spoken Tutorials are part of Talk to a Teacher project,
+|Spoken Tutorials are part of Talk to a Teacher project,
 |-