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

Gas-liquid vertical separator, problems with convergence

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

LinkBack Thread Tools Search this Thread Display Modes
Old   October 5, 2011, 20:20
Default Gas-liquid vertical separator, problems with convergence
Senior Member
Julio Mendez
Join Date: Apr 2009
Location: Fairburn, GA. USA
Posts: 290
Rep Power: 18
juliom is on a distinguished road
Send a message via Skype™ to juliom
Dear friends, I have worked very hard on my thesis, but I have had problem with the convergence.
The boundaries conditions are:
Inlet: bulk Velocities (volume fraction of each phase)
Gas outlet (upper): pressure 0 psi
Liquid outlet (down): 0.35 psi (hydrostatic)

The model I am using is inhomogenues, specifically the particle model.
I am using the gravity vector due to the fact that I am modelling the gravitational effect (densities difference)
K-E for turbulence...
My simulation starts running but after 25 iteration this message appears :A wall has been placed at portion(s) of an OUTLET |
| boundary condition (at 100.0% of the faces, 100.0% of the area) |
| to prevent fluid from flowing into the domain.

I know what it means, the problem is that I have done several things but the problems continues.
Who can HELP ME ...
Thanks before hand
Attached Files
File Type: txt Homogeneo_071.txt (75.1 KB, 12 views)

Last edited by juliom; October 5, 2011 at 20:28. Reason: File attached
juliom 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
mass flow in is not equal to mass flow out saii CFX 12 March 19, 2018 05:21
Calculation of the Governing Equations Mihail CFX 7 September 7, 2014 06:27
Force can not converge colopolo CFX 13 October 4, 2011 22:03
Constant velocity of the material Sas CFX 15 July 13, 2010 08:56
Gas dissolution from liquid phase with CFX Roger Young CFX 2 May 6, 2008 07:37

All times are GMT -4. The time now is 08:28.