|February 19, 2003, 13:22||
MULTIGRID at the wall
After reading a few archived messages on this site it seems that people are still having problems with getting CFD with multigrids to work accurately in the region of turbulent boundary layers.
I am also having problems with getting my multigrid to work accurately near the wall (FVM, structured grid with RANS k - omega turbulence model)
The problems are with what boundary conditions to specify on the coarsegrids at the wall (which fall in log layer).
my questions are therefore:
* does anybody know of any references (papers, thesis, etc...) about successful simulation of turbulent flows using multigrid methods with wall-laws and RANS?
* if you use multigrid and wall-laws do you need to use the wall-laws on ALL levels or can you just use them on the most coarse grids?
* which multigrid methods are good/bad when simulating fluid flow in turbulent boundary layers?
* is there anyone out there that has had similar problems and would like to share their experiences of how they sucessfully implemented a multigrid method using wall-laws for the most coarse levels?
|Thread||Thread Starter||Forum||Replies||Last Post|
|Natural convection in a closed domain STILL NEEDING help!||Yr0gErG||FLUENT||3||June 12, 2013 02:12|
|natural convection||mehrdadeng||CFX||10||February 25, 2011 06:25|
|Deal with wall boundary with moving mesh by FVM?||aiya||Main CFD Forum||6||May 10, 2007 11:33|
|Quick Question - Wall Function||D.Tandra||Main CFD Forum||2||March 16, 2004 05:29|
|Simple Wall Boundary Conditions for Turb. Flow||Greg Perkins||Main CFD Forum||4||May 28, 2002 23:10|