|April 11, 2013, 09:09||
Grid sensitivity question
Join Date: Jun 2012
Posts: 290Rep Power: 6
I'm doing a grid sensitivity study. Hypothetically let's say I have three meshes:
- Mesh 1
- Mesh 2
- Mesh 3
Each mesh is different.
I have a transient solution for mesh 1, but not for mesh 2 or 3.
Is it acceptable to use the results from mesh 1 as the initial guess for mesh 2? Likewise is it acceptable to use the results from mesh 2 as the initial guess for mesh 3?
The alternative method is to (for all three meshes):
- Compute a solution using steady state
- Using the steady state solution as the initial guess compute the transient solution
I hope that makes sense!
|April 11, 2013, 09:59||
Join Date: Mar 2009
Posts: 523Rep Power: 11
An initial guess is just a guess, so as long as your simulation converges you should be fine with using the coarser mesh as initial guess on the finer meshes.
|Thread||Thread Starter||Forum||Replies||Last Post|
|Question about the grid independance study||Anna Tian||CFX||1||September 16, 2012 07:41|
|ITK MRI Grid generation question||EphemeralMemory||ANSYS||0||September 8, 2010 17:37|
|Moving Body Grid Question||Matt||Main CFD Forum||5||September 13, 2004 00:45|
|Grid Quality and the Solution||Faraz||Main CFD Forum||4||January 10, 2000 19:18|
|Numerical methods for discontinuous grid interfaces?||Hansong Hang||Main CFD Forum||12||September 16, 1998 22:26|