|August 2, 2006, 09:32||
Help for cut cell scheme for moving problems
Anyone here 've experience in cartesian grid cut cell method?
I've just coded one which is similar to that of Mittal/Ye et. al. It has worked for stationary body.
however, i've met with problems when i run it for oscillating cylinder. My cl/cd is very irregular instead of periodic.
I'm using FVM CN2 scheme to discretise and hence in the momentum eqn, I need to to compute values at old time step=n.
1. For the old values, do I compute them at the new position or old position?
2. If I need to compute them at the new position, how do I calculate the boundary value? They are prescribed but at t=n+1 and n, they are at different location. So how should I calculate it at the new location but at t=n?
Thanks a lot.
|Thread||Thread Starter||Forum||Replies||Last Post|
|CGNS converters available||mbeaudoin||OpenFOAM Meshing & Mesh Conversion||125||July 1, 2015 21:09|
|Problems with Meshing: Collapsed Cells||Emmanuel Resch||CD-adapco||1||July 30, 2007 03:02|
|Some problems with Star CD||Micha||CD-adapco||0||August 6, 2003 13:55|
|Implicit scheme for incompressible flow problems||Triton||Main CFD Forum||4||August 25, 2002 04:54|
|unstructured grid||sreekanth||Main CFD Forum||1||August 6, 2001 15:09|