|June 18, 2006, 14:01||
I have to run a case with laminar unsteady flow. I wrote the UDF that describes the unsteady velocity profile, hooked it up to Fluent. But the simulation seems to be outrageously slow. I even changed to second order upwinding, reduced the relaxation factors. Even then, there's no improvement.
After about 151 iterations (my time step size is 0.01 with 400 time steps), I get an error mesage that says:
Error: divergence detected in AMG solver: y- momentum
Error Object )
What does this mean and how can it be corrected?
Any opinions/ suggestions?
|Thread||Thread Starter||Forum||Replies||Last Post|
|How to write k and epsilon before the abnormal end||xiuying||OpenFOAM Running, Solving & CFD||8||August 27, 2013 15:33|
|Building OpenFOAM1.7.0 from source||ata||OpenFOAM Installation||42||May 14, 2012 20:48|
|Upgraded from Karmic Koala 9.10 to Lucid Lynx10.04.3||bookie56||OpenFOAM Installation||8||August 13, 2011 04:03|
|IcoFoam parallel woes||msrinath80||OpenFOAM Running, Solving & CFD||9||July 22, 2007 02:58|
|Could anybody help me see this error and give help||liugx212||OpenFOAM Running, Solving & CFD||3||January 4, 2006 18:07|