|November 5, 2012, 11:28||
related to yplus
Join Date: Oct 2012
Posts: 1Rep Power: 0
reading through this forum i've been able to find most of the answers i was looking for, but i have still some doubts related to yplus that i hope someone can clarify:
1. Is it possible to control the y+ values of my grid somehow with sHM fixing a min/max value somewhere? Or do I have to play instead with the expansionRatio/finalLayerThickness/minThickness in the addLayersControls from the snappyHexMeshDict?
I have values from 4 to 120 and i would like to increase the min value til 30 as i would like to use wall functions...
2. Supposing that i don't change my actual mesh, what i've understood from other posts (correct me if i'm wrong) is that i can still use wall functions, using "omegaWallFunction" for omega and "nutUSpaldingWallFunction" for nut (i'm using kw sst model), but in this case, which condition do i use for k?? zeroGradient?? or kqRWallFunction??
|kwsstmodel, wallfunctions, yplus|
|Thread||Thread Starter||Forum||Replies||Last Post|
|How to calculate Y+( Yplus)||mohammad||Main CFD Forum||3||January 12, 2011 00:23|
|which yplus (SST)||sanchezz||CFX||17||January 11, 2010 05:45|
|Who stole my Yplus?||Chebeba||CFX||4||March 23, 2006 05:18|
|X-Y plot of Yplus in Fluent 5.3||Luo||FLUENT||24||April 11, 2000 06:07|
|heat transfer coefficients with "bad" yplus||Andrew||Main CFD Forum||4||April 8, 1999 04:43|