CFD Online Logo CFD Online URL
Home > Forums > General Forums > Main CFD Forum

dissolved Species equation and VOF

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

LinkBack Thread Tools Search this Thread Display Modes
Old   April 8, 2009, 16:12
Default dissolved Species equation and VOF
New Member
Join Date: Mar 2009
Posts: 4
Rep Power: 17
santhanuj is on a distinguished road

I am trying to simulate air and heavy fluid sytem using VOF. My water consists of dissolved species which I am defining through the generic scalars option in Star V 4.0+. But I would like to define the generic scalar in such a way that it does not escape into air and remain in the heavy fluid. Ideally it would mean the normal gradient of the species across the interface should be zero.

I have tried various options like large source terms in the diffusion equation, making the convective and the diffusive term function of liquid fraction. But in either case it leads me to species front lagging behind or incorrect convective fluxes leading to incorrect species field..

Does anyone know how to contain the species (generic scalar) in the heavy fluid? Any help would be highly appreciated.


santhanuj is offline   Reply With Quote


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
Species equation with VOF santhanuj STAR-CD 0 April 8, 2009 16:09
Question on momentum equation in VOF or Level Set Kai Yan Main CFD Forum 0 January 11, 2008 08:47
how to adjust continuity equation in vof??? Asghari FLUENT 0 October 11, 2006 04:43
VOF and species transport Joe FLUENT 0 April 13, 2006 23:12
UDF sourse term for VOF equation ROOZBEH FLUENT 5 April 22, 2003 06:56

All times are GMT -4. The time now is 16:51.