|October 29, 2009, 06:07||
Wild pressure fluctuations with InterDyMFoam
Join Date: May 2009
Posts: 10Rep Power: 8
I'm looking at verification of OpenFOAM with the Kleefsman et al (2005) dambreak simulation but I'm getting wild pressure fluctuations near the obstacle (at positions P1 to P7 in Kleefsman). I will try to attach a plot for position P1.
I have adapted the interDyMFoam dambreak tutorial, using exactly the same fvSolution and fvSchemes files. I have also tried changing various parameters, including the div schemes with only partial success.
Can anyone help me with a recommendation for schemes, or other, that may resolve this problem please?
|April 29, 2011, 09:56||
Join Date: Jan 2010
Blog Entries: 2Rep Power: 8
I have this problem too.
My case is a cyclone with pisoFoam and Smagorinsky LES.
What can be the cause of this high fluctuation? This fluctuation is seen on both residuals and magnitude of P. i mean at one time step range of P is from 0 to 500 but at next time step it becomes from -800 to -100 and so on ...
|dambreak, interdymfoam, pressure, pressure fluctuation, verification|
|Thread||Thread Starter||Forum||Replies||Last Post|
|Neumann pressure BC and velocity field||Antech||Main CFD Forum||0||April 25, 2006 02:15|
|Gas pressure question||Dan Moskal||Main CFD Forum||0||October 24, 2002 22:02|
|what the result is negatif pressure at inlet||chong chee nan||FLUENT||0||December 29, 2001 06:13|
|Hydrostatic pressure in 2-phase flow modeling (CFX4.2)||HB &DS||CFX||0||January 9, 2000 14:19|
|Hydrostatic pressure in 2-phase flow modeling (long)||DS & HB||Main CFD Forum||0||January 8, 2000 16:00|