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

Compressive term in gamma equation

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   February 17, 2005, 17:19
Default I was wondering what's the ac
  #1
Ali (Ali)
Guest
 
Posts: n/a
I was wondering what's the actual and preferred expression for the compressive term in gamma equation and a very brief explanation of how it is derived. The formula for 'phir' in the code differs from what Henrik has mentioned in (Eq. (4.15)). In the code:

phir=cGamma()*mag(phi/mesh.magSf())*interface.nHatf()

while Henrik's suggests (if I have formulated it correctly):

phir=cGamma*nhatf*max(nhat * phi / mesh.magSf()**2 )

Are they really different (am I missing something) and if yes, which one is better?


2) where is the smoothing function for 'gamma' in interFoam? Does it have a significant effect on VOF performance or just affects surface tension prediction?

thanks
  Reply With Quote

Reply

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
Implicit solver for gamma volumefraction equation sek OpenFOAM Running, Solving & CFD 38 July 11, 2015 04:59
How to change a term of an equation dimi OpenFOAM Running, Solving & CFD 5 July 4, 2007 10:43
How to add a source term in u or v equation? luckyluke Phoenics 3 December 13, 2004 02:52
Add source term in species equation zhou1 FLUENT 1 October 21, 2003 06:28
UDF sourse term for VOF equation ROOZBEH FLUENT 5 April 22, 2003 06:56


All times are GMT -4. The time now is 21:44.