CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Main CFD Forum

coupling vof with single phase flow and gravity term

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

Reply
 
LinkBack Thread Tools Display Modes
Old   August 2, 2013, 14:37
Default coupling vof with single phase flow and gravity term
  #1
New Member
 
Kareem
Join Date: Mar 2012
Posts: 9
Rep Power: 5
alame005 is on a distinguished road
Hey everyone,
currently developing two phase flow solver. I have written a 2D navier stokes solver for a single phase flow and tested it. I also wrote a VOF-plic algorithm and tested that and it works. Now when I couple the two together and add gravity it doesnt work.

Any suggestions on how to treat gravity ?

I have modified my single phase solver to include dimensional quantities and density and rho are used explicitly.
It's based on a predictor corrector step.
When I couple the vof with the single phase I treat the gravity term as a constant and add it to the non-linear and viscous terms in the predictor step.

Is that the way to go about it ? I'm trying to simulate the Rayleigh-Taylor problem.
Your input would be highly appreciated.
alame005 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
Two Phase Darcy flow with gravity -> problem Cyp OpenFOAM Programming & Development 0 November 17, 2010 08:58
mass flow in is not equal to mass flow out saii CFX 2 September 18, 2009 08:07
Vof oulet bc with gravity ktsai2003 OpenFOAM Running, Solving & CFD 2 June 30, 2009 05:38
VOF gravity flow BC Alexander Ladino CFX 1 March 28, 2007 14:45
Problems with the gravity in granular flow Frank Rückert Main CFD Forum 0 May 4, 2004 16:22


All times are GMT -4. The time now is 10:16.