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

InterFoam alpha solution for a centrifuge outlet diverges into non-physical fog

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   April 10, 2014, 05:46
Default InterFoam alpha solution for a centrifuge outlet diverges into non-physical fog
  #1
New Member
 
Kim Ravn-Jensen
Join Date: Oct 2013
Location: Copenhagen, Denmark
Posts: 3
Rep Power: 13
kimrj is on a distinguished road
I have extended LTSInterFoam to include SRF features in order to analyze the steady state exit flow (red dot to the left) of a decanter centrifuge:

http://www.alfalaval.com/solution-fi...owitworks.aspx

Most features of my solutions make sense. But my water concentration solutions tend to diverge with solution time into "fog" when the water has left the process chamber and is thrown into ambient air.

I have studied a number of model problems which I learned nothing from: If I do something simpler than throwing a rotating water jet into the atmosphere using a tetrahedral mesh, I get quite nice results.

The source code contains lots of corrective terms of various strength, and I suspect that I could improve my solutions by figuring out how to balance those terms. In most respects, I am a newbie to CFD, but not in the discipline of trying parameter settings in this area...

Any suggestions?
kimrj is offline   Reply With Quote

Reply

Tags
centrifuge, interfoam, ltsinterfoam


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
ATTENTION! Reliability problems in CFX 5.7 Joseph CFX 14 April 20, 2010 16:45
Moving from simpleFoam to interFoam with alpha = 0 kjetil OpenFOAM Running, Solving & CFD 1 November 8, 2009 21:04
IcoFoam parallel woes msrinath80 OpenFOAM Running, Solving & CFD 9 July 22, 2007 03:58
Could anybody help me see this error and give help liugx212 OpenFOAM Running, Solving & CFD 3 January 4, 2006 19:07
Unsteady Solution Diverges Prateep Chatterjee FLUENT 4 August 18, 2002 13:15


All times are GMT -4. The time now is 05:24.