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

Smagorinsky Coefficients

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

Reply
 
LinkBack Thread Tools Display Modes
Old   October 9, 2012, 17:48
Default Smagorinsky Coefficients
  #1
Senior Member
 
Awais Ali
Join Date: Feb 2010
Location: Germany
Posts: 125
Rep Power: 6
owayz is on a distinguished road
Send a message via MSN to owayz
I have an observation.
The default values for Smagorinsky coefficients in compressible and in-compressible models are different. What could be the reason for that?
Compressible coefficients:
SmagorinskyCoeffs
{
ce 1.048;
Prt 1;
ck 0.02;
}

This makes up for a (Smagorinsky Coefficient) Cs = 0.053
SmagorinskyCoeffs
{
ce 1.05;
ck 0.0472;
}


This makes up for a Cs = 0.1
Regards,
Awais
owayz is offline   Reply With Quote

Old   October 10, 2012, 17:47
Default
  #2
Senior Member
 
Awais Ali
Join Date: Feb 2010
Location: Germany
Posts: 125
Rep Power: 6
owayz is on a distinguished road
Send a message via MSN to owayz
Would anyone like to comment?
owayz is offline   Reply With Quote

Reply

Thread Tools
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 On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
A way to optimize the WENO scheme by optimizing the coefficients of linear scheme moon_light Main CFD Forum 1 November 27, 2012 09:19
Calculate aerodynamic coefficients with openfoam using only opensource programs Xwang OpenFOAM 19 September 14, 2012 01:50
lift and drag coefficients around a ground vehicle Pedro CFX 3 September 5, 2012 18:31
Blottner Coefficients f_sizer Main CFD Forum 0 August 26, 2010 07:03
Computing aerodynamic coefficients on bidimensional sections in 3D problems Aragon FLUENT 0 July 22, 2009 04:07


All times are GMT -4. The time now is 13:20.