|
[Sponsors] |
September 24, 2008, 12:47 |
Problem - The default tutorial
|
#1 |
New Member
Aditya Chunekar
Join Date: Mar 2009
Posts: 18
Rep Power: 17 |
Problem - The default tutorial case (throttle3D) for lesCavitatingFoam blows up
Platform - Linux (Redhat version 4.2) Negative pressure and hence very high values of U observed. At time = 0.004, the code blows. |
|
September 25, 2008, 13:49 |
Thanks for the report. There i
|
#2 |
Senior Member
Mattijs Janssens
Join Date: Mar 2009
Posts: 1,419
Rep Power: 26 |
Thanks for the report. There is no immediate bug in the code. We've only run it up to 1e-4 so you are a bit in uncharted territory. The physics are quite complex so you might want to make the numerics a bit more stable.
- make sure you use the mapped solution from the 2D case to start. - limit the gradients on the velocity if the turbulence quantities go unstable. - change the div scheme to e.g. upwind. |
|
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Problem starting a tutorial case | alank | OpenFOAM Installation | 1 | December 12, 2006 16:50 |
case and dat file of FLUENT tutorial | Sajad Ranjbaran | FLUENT | 0 | November 8, 2006 06:55 |
Tutorial bCavityb case problem | wells | OpenFOAM Installation | 2 | March 21, 2005 07:55 |
Case in Fluent Tutorial 1 | Lam | FLUENT | 0 | August 24, 2004 11:25 |
XiFoam tutorial case | pratap | OpenFOAM Running, Solving & CFD | 1 | March 1, 2004 05:25 |