|
[Sponsors] |
November 7, 2008, 18:43 |
Trimmer meshing model STAR-CCM+
|
#1 |
Guest
Posts: n/a
|
I have a relatively simple geometry of a square cross-section pipe with a thin solid material boundary (to simulate H1 thermal boundary condition) and am trying to find a way to produce a more optimal mesh.
The geometry is square in the XY plane and extends in the Z direction. Is there any way to specify or change the number of cells or stretch the cells in the Z direction to make the number of cells smaller when running longer pipes? For example, I know that in GAMBIT, it is possible to specify how many cells to produce along a dimension. Is something similar available within STAR-CCM? Also, if anyone has a better way to simulate the H1(constant axial heat flux with constant peripheral wall temperature) thermal boundary condition in STAR-CCM that would be very helpful as well. I am currently specifying a thin, highly conductive solid material surrounding the pipe fluid that is subjected to a constant heat flux. Due to the high thermal conductivity of the material, the peripheral wall temperature is approximately constant. |
|
November 10, 2008, 05:15 |
Re: Trimmer meshing model STAR-CCM+
|
#2 |
Guest
Posts: n/a
|
Hi
my suggestion to stretch the cell in the z direction is to use the "Volumetric Control" that you can find under the mesh menu. Simply define a volume shape under the Tools -> Volume Shape menu, you can define a volume that include your pipe, the use that volume in the volumetric control. There you can set an anisotropic custom mesh in the trimmer option, then specify a cell size in the z direction to have less cells in the pipe... Hope that help! Bye Andrea |
|
November 10, 2008, 07:03 |
Re: Trimmer meshing model STAR-CCM+
|
#3 |
Guest
Posts: n/a
|
Just use the extruder.
|
|
December 17, 2008, 17:16 |
Re: Trimmer meshing model STAR-CCM+
|
#4 |
Guest
Posts: n/a
|
Is this not a 2D problem? If so, use mesh>convert to 2D. Make sure the mesh is oriented such that the pipe length is down the z-axis, and the square cross-section lies in the x-y plane. Also keep in mind that this models a 1-meter depth (even if inches are the default unit).
|
|
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
CFM model in star-ccm+ | sally | Siemens | 0 | May 29, 2008 21:40 |
Meshing in Pro-Star | usker | Siemens | 1 | April 4, 2007 17:01 |
multi-region volume meshing on star ccm+ | Mike | Siemens | 6 | November 13, 2006 11:36 |
V2F model in Star-CD 3.24 Win | DenizeN | Siemens | 3 | October 19, 2005 03:32 |
Meshing of imported 2-D CAD geometry in STAR-CD | Haris Maharana | Siemens | 1 | June 30, 2000 14:48 |