|March 28, 2012, 06:18||
Strange simpleFoam solution after increasing sHM refinement levels
Join Date: Oct 2011
Posts: 33Rep Power: 6
my problem is as follows:
I have a 'simple' 2D problem consisting of a diffuser (see pictures) and a wall on the right side of the diffuser (not displayed on pictures). The task is to simulate jet impingement and Nusselt number on the wall. The dump's top and bottom are defined as outlets. The inlet height is 0.01 and the entire domain is 0.4625 x 0.65 x 0.002.
As you can see, the diffuser flow is going in the wrong direction (see flow_arrows.jpg), but only when I apply the refinement levels displayed in 'flow_mesh.jpg'.
As soon as I reduce the center region's refinement by one to level 1, I get a diffuser flow in the right direction.
turbulence model: k-omega-SST
U [mapped, uniform (15 0 0), cell, true, (15 0 0)]
k [fixedValue, uniform 0.856]
omega [fixedValue, uniform 660]
nut [fixedValue, uniform 0.0013]
p [fixedValue, uniform 0]
nut [calculated, uniform 0]
U [fixedValue, uniform (0 0 0)]
k [fixedValue, uniform 0]
omega [omegaWallFunction, uniform 50]
nut [nutkWallFunction, uniform 0]
Any ideas how to fix this problem?
Thanks a lot in advance
I'm more than happy to provide more info if needed
Last edited by vigges; March 29, 2012 at 04:26. Reason: providing more information
|Thread||Thread Starter||Forum||Replies||Last Post|
|interFoam solution tolerances||mgdenno||OpenFOAM||4||September 13, 2011 12:58|
|upwind schema strange results; Solution of Versteeg example differs from OpenFOAM sol||idrama||OpenFOAM||12||May 10, 2011 05:38|
|Transient, initial variables from a previous solution||nakor||FloEFD, FloWorks & FloTHERM||0||April 22, 2011 04:34|
|Unsteady solution||Christophe||FLUENT||0||August 11, 2006 11:13|
|Discussion about Mesh independant solution||Seb||Main CFD Forum||13||May 22, 2001 13:37|