|October 8, 2010, 01:23||
interpreting velocity field
Join Date: Sep 2010
Posts: 28Rep Power: 7
I've recently started using Openfoam, i'm planning to club my flow field results with Lagrangian particle dispersion model that i have coded. I'm having trouble interpreting the velocity data, for example in the example "cavity" run with RAS, for time step 20 we get a listing of 400 velocity data points. I understand my mesh is 20*20*1 grid , and velocities are calculated at volume centers. What co-ordinates do the results pertain to, or other wise is it possible to get velocity field in terms of exact gird location in my mesh.
Hope i'm clear with what i'm trying to get at...
thanks in advance!
|October 8, 2010, 20:21||
Santiago Marquez Damian
Join Date: Aug 2009
Location: Santa Fe, Santa Fe, Argentina
Posts: 430Rep Power: 16
Abhinav, values are calculated at cell centres, but this info is not stored in /constant/polyMesh structure, so to obtain the coordinates of points which solution belongs to you have the command,
this command will give you three files in /0
they have the x, y and z coordinates of cell centres for internal mesh and face centres for boundary mesh.
Santiago MÁRQUEZ DAMIÁN, Ph.D.
Research Center for Computational Methods (CIMEC) - CONICET/UNL
Tel: 54-342-4511594 Int. 7032
Colectora Ruta Nac. 168 / Paraje El Pozo
(3000) Santa Fe - Argentina.
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