|March 20, 2017, 12:24||
k-omega SST no wall fuction, K omega values?
Join Date: Feb 2017
Posts: 4Rep Power: 2
hello foamers, I'm a bit of a newbie to the software. ive been trying to use the k-omega SST model without a wall function. i have my Y+~ 1, but i am still wondering what values for K and Omega to use in the initial conditions.
i have found several different sources to giving different equations to calculate the these values.
Omega = 5U/L
this is to model the tip-vortex of a hydrofoil.
Reynolds number ~ 1.5e6
anyadvice is much appreciated
|March 23, 2017, 16:14||
Join Date: Nov 2010
Location: United States
Posts: 207Rep Power: 9
If you are not using wall function i.e y+<6, the following initial condition for k and omega should be used.
Note: for omega use 1e+10 instead of minus (close to the infinity) but you have the freedom to try them both.
|k omega, k-omega sst, openfoam|
|Thread||Thread Starter||Forum||Replies||Last Post|
|One more time: wall functions - SST||CellZone||OpenFOAM Pre-Processing||11||February 14, 2017 04:18|
|Enhanced Wall Treatment||paduchev||FLUENT||19||April 10, 2016 09:57|
|Radiation interface||hinca||CFX||15||January 26, 2014 18:11|
|Wall treatment mesh refinement in k-omega SST model||Jorg||FLUENT||0||February 27, 2013 12:32|
|UDF for wall slipping||HFLUENT||Fluent UDF and Scheme Programming||0||April 27, 2011 12:03|