|
[Sponsors] |
September 20, 2013, 16:53 |
mesh spatial dimension in OpenFOAM
|
#1 |
New Member
Reno
Join Date: Sep 2012
Posts: 27
Rep Power: 13 |
My default mesh geometry length is in 80 mm. For OpenFoam, I scaled the mesh in meters as 0.008 m. Once I import the mesh in OpenFOAM, it is a collection of point coordinates. Now, the location of these points and spatial difference between different points will be the same either if they are in mm or m. I feel spatial unit is arbitrary here?
I want to understand when do I have to scale the geometry in Openfoam and when not? Last edited by jr33; October 2, 2013 at 01:01. |
|
September 29, 2013, 03:25 |
|
#2 | |
Senior Member
Nima Samkhaniani
Join Date: Sep 2009
Location: Tehran, Iran
Posts: 1,266
Blog Entries: 1
Rep Power: 24 |
Quote:
then you will see the scale of your geometry, if it differs from what you intended then you can use transformPoints -scale '(x x x)' where x is your scale.
__________________
My Personal Website (http://nimasamkhaniani.ir/) Telegram channel (https://t.me/cfd_foam) |
||
October 2, 2013, 01:00 |
|
#3 |
New Member
Reno
Join Date: Sep 2012
Posts: 27
Rep Power: 13 |
Thanks, that helps.
|
|
May 23, 2016, 11:57 |
|
#4 |
Member
Join Date: Oct 2015
Posts: 63
Rep Power: 10 |
Hey,
I have a question regarding the fluentMeshToFoam command. My geometry is in mm and I've created the mesh in ICEM. Now after doing fluentMeshToFoam pipe.msh I do checkMesh. Now, checkMesh gives the dimensions of the overall bounding box without the units. Are these units in mm since my geometry is in mm? or if I want to convert it into mm should I do transformPoints -scale '(0.001 0.001 0.00)'? For example, when I go to the scale option in fluent, it asks me the units in which my mesh was created and accordingly scales the mesh. What I mean by scale is, it keeps the numbers the same just changes the units. In openFOAM, when I do checkMesh, it gives me the same dimensions without the units. So I don't know what the units are., whether it is m or mm. Thanks!! Ram |
|
May 23, 2016, 11:59 |
|
#5 |
Member
Join Date: Oct 2015
Posts: 63
Rep Power: 10 |
I meant transformPoints -scale'(0.001 0.001 0.001)' in the previous post
|
|
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
[Commercial meshers] OpenFoam Mesh to Fluent Mesh in parallel case | DominicTNC | OpenFOAM Meshing & Mesh Conversion | 3 | November 22, 2017 09:19 |
[Salome] Mesh conversion Salome to OpenFOAM | VMartinez | OpenFOAM Meshing & Mesh Conversion | 11 | April 21, 2014 02:54 |
OpenFOAM Foundation releases OpenFOAM 2.2.2 | opencfd | OpenFOAM Announcements from ESI-OpenCFD | 0 | October 14, 2013 07:18 |
fluent add additional zones for the mesh file | SSL | FLUENT | 2 | January 26, 2008 11:55 |
Icemcfd 11: Loss of mesh from surface mesh option? | Joe | CFX | 2 | March 26, 2007 18:10 |