|
[Sponsors] |
April 26, 2012, 03:16 |
Appropriate mesh
|
#1 |
New Member
Azat
Join Date: Apr 2012
Posts: 8
Rep Power: 14 |
how we know whether mesh appropriate or not??????
|
|
April 26, 2012, 09:02 |
|
#2 |
Senior Member
Lucky
Join Date: Apr 2011
Location: Orlando, FL USA
Posts: 5,674
Rep Power: 65 |
Your mesh resolution should be fine enough to resolve all the features that you are interested in solving but coarse enough so that the computational cost can be kept low. The mesh should not introduce significant errors during the computation (mesh quality shall be good).
In other words, the mesh should do what you need it to do and it shouldn't do unwanted things. It depends on what you are trying to do, but the rest are just details. If you have a particular application in mind then we can help you detail by detail. |
|
April 26, 2012, 16:22 |
|
#3 |
Senior Member
Join Date: May 2011
Location: Germany
Posts: 130
Rep Power: 14 |
You can do a grid study to get to know if you grid is fine enough.
If you use a structured grid there is a good approach by Roach: P.J. Roach. Perspective: A Method for Unifrom Repoting of Grid Refinement Studies. Journal of Fluids Engineering, 116:405–413, 1994. And Celik shows a step by step instruction for this method: I.B. Celik. Procedure for Estimation and Reporting of Discretization Error in CFD Applications. Journal of Fluids Engineering, 130(7), Juli 2008. |
|
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
[ICEM] surface mesh merging problem | everest | ANSYS Meshing & Geometry | 44 | April 14, 2016 06:41 |
[ICEM] Problem making structural mesh on a surface | froztbear | ANSYS Meshing & Geometry | 1 | November 10, 2011 08:52 |
[snappyHexMesh] snappyHexMesh won't work - zeros everywhere! | sc298 | OpenFOAM Meshing & Mesh Conversion | 2 | March 27, 2011 21:11 |
Meshing aifoil in ICEM | student123a | ANSYS Meshing & Geometry | 13 | December 8, 2010 10:40 |
2d irregular grid | Remy | Main CFD Forum | 1 | December 22, 2008 04:49 |