CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > OpenFOAM > OpenFOAM Running, Solving & CFD

LES wall-function Hi-Re

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   March 21, 2014, 07:21
Default LES wall-function Hi-Re
  #1
Pj.
Member
 
Luca
Join Date: Mar 2013
Posts: 68
Rep Power: 13
Pj. is on a distinguished road
Hi everybody

Before opening this thread i did some research, but I couldn't find an answer to this pretty-basic question.

I have an Hi-Re LES case. I would like to setup some wall-functions for my variables, especially for U but i couldn't figure how to do it.

I read that setting the BC for U to fixedValue 0 0 0, OpenFoam uses a Low-Re wall function. How can i set a Hi-Re one?
Moreover here it tells
Quote:
The choice of wall function model is specified through: [...] νsgs in the 0/nuSgs file for incompressible LES
but doing find $FOAM_SRC/turbulenceModels -name wallFunctions the output is:
Quote:
/software/OpenFOAM/OpenFOAM-2.2.x/src/turbulenceModels/incompressible/RAS/backwardsCompatibility/wallFunctions
/software/OpenFOAM/OpenFOAM-2.2.x/src/turbulenceModels/incompressible/RAS/derivedFvPatchFields/wallFunctions
/software/OpenFOAM/OpenFOAM-2.2.x/src/turbulenceModels/compressible/RAS/backwardsCompatibility/wallFunctions
/software/OpenFOAM/OpenFOAM-2.2.x/src/turbulenceModels/compressible/RAS/derivedFvPatchFields/wallFunctions
It seems there're no LES wall-functions.

I'm sorry if the question is stupid, but i'm a bit confused about this topic.
Thank for the help,
Luca
Pj. is offline   Reply With Quote

Old   March 24, 2014, 06:17
Default
  #2
Pj.
Member
 
Luca
Join Date: Mar 2013
Posts: 68
Rep Power: 13
Pj. is on a distinguished road
No one can help me on this topic?
Pj. is offline   Reply With Quote

Reply


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
LES wall function ayoros OpenFOAM Running, Solving & CFD 11 February 9, 2017 06:34
is internalField(U) equivalent to zeroGradient? immortality OpenFOAM Running, Solving & CFD 7 March 29, 2013 01:27
channelFoam for a 3D pipe AlmostSurelyRob OpenFOAM 3 June 24, 2011 13:06
[blockMesh] BlockMesh FOAM warning gaottino OpenFOAM Meshing & Mesh Conversion 7 July 19, 2010 14:11
Problem with rhoSimpleFoam matteo_gautero OpenFOAM Running, Solving & CFD 0 February 28, 2008 06:51


All times are GMT -4. The time now is 07:45.