CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > ANSYS > FLUENT

yplus valid range for RSM

Register Blogs Members List Search Today's Posts Mark Forums Read

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   May 1, 2020, 06:21
Default yplus valid range for RSM
  #1
New Member
 
mohamad ali mirzaei
Join Date: Feb 2017
Posts: 27
Rep Power: 7
mohamadalimirzaei1994 is on a distinguished road
is there any documentation specifying the valid range of y+ value for each turbulence model and each wall treatment method?

in specific I am looking for the valid rang for RSM for standard wall function and enhance wall treatment.
mohamadalimirzaei1994 is offline   Reply With Quote

Old   May 1, 2020, 11:35
Default
  #2
Senior Member
 
duri
Join Date: May 2010
Posts: 245
Rep Power: 15
duri is on a distinguished road
Read fluent documentation
duri is offline   Reply With Quote

Old   May 1, 2020, 11:37
Default
  #3
New Member
 
mohamad ali mirzaei
Join Date: Feb 2017
Posts: 27
Rep Power: 7
mohamadalimirzaei1994 is on a distinguished road
Quote:
Originally Posted by duri View Post
Read fluent documentation
I could not find specific range for each turbulence model and wall treatment method. can you find it?
mohamadalimirzaei1994 is offline   Reply With Quote

Old   May 1, 2020, 15:52
Default
  #4
Senior Member
 
Lucky
Join Date: Apr 2011
Location: Orlando, FL USA
Posts: 4,791
Rep Power: 56
LuckyTran has a spectacular aura aboutLuckyTran has a spectacular aura aboutLuckyTran has a spectacular aura about
Both standard and enhanced wall treatment works for all y+.


The low y+ only and high y+ only models are hidden behind expert options.
LuckyTran is online now   Reply With Quote

Old   May 2, 2020, 03:23
Default
  #5
Senior Member
 
duri
Join Date: May 2010
Posts: 245
Rep Power: 15
duri is on a distinguished road
Quote:
Originally Posted by mohamadalimirzaei1994 View Post
I could not find specific range for each turbulence model and wall treatment method. can you find it?

You cant find for each model because y+,u+ relation is based on turbulence physics and not based on model equations. But you will find the valid region of different wall functions and wall integration. Low Reynolds number turbulence models can integrate up to viscous sub layer, RSM should belong to that. But it doesn't mean for high y+ it will not apply wall function. Most of the latest software adapts to the mesh y+ to give best solution.
duri is offline   Reply With Quote

Reply

Tags
rsm, wall treatment, y+ value, yplus

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

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
whats the cause of error? immortality OpenFOAM Running, Solving & CFD 13 March 24, 2021 07:15
[snappyHexMesh] How to define to right point for locationInMesh Mirage12 OpenFOAM Meshing & Mesh Conversion 7 March 13, 2016 14:07
AMI memory leak? MichiB OpenFOAM Programming & Development 14 August 1, 2015 18:18
[snappyHexMesh] determining displacement for added points CFDnewbie147 OpenFOAM Meshing & Mesh Conversion 1 October 22, 2013 09:53
is internalField(U) equivalent to zeroGradient? immortality OpenFOAM Running, Solving & CFD 7 March 29, 2013 01:27


All times are GMT -4. The time now is 22:40.