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

Divergence in model

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

Reply
 
LinkBack Thread Tools Display Modes
Old   May 27, 2016, 17:44
Default Divergence in model
  #1
New Member
 
Join Date: Jan 2016
Posts: 2
Rep Power: 0
Antoniouh is on a distinguished road
Hi!
I am trying to simulated a gas stirred vessel (metallurgical ladle) using Eulerian multiphase model in 2D axisymmetric geometry. Im using explicit scheme and dispersed turbulence model. The problem is that the solution diverges, showing an Courant number very high and also (sometimes) a flotating point error. I have used different mesh size using 7000, 12000, 17000, 24000, 50000, 100000 and 400000 elements, time step since 1e-05 to 1e-08 but the divergence still appears. What could be the cause? Please, if have any suggestions, I will apreciate it.
The mesh is very fine in the simmetry axis and the interface of liquid.
Thank you.
Antoniouh is offline   Reply With Quote

Reply

Tags
axisymmetric, courant number, eulerian, fluent

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
Divergence when using UDF for PVT Tait model jpina FLUENT 0 April 16, 2016 03:50
coalChemistryFoam: "Foam::error::printStack(Foam::Ostream&) at ??:?" musabai OpenFOAM Running, Solving & CFD 2 February 20, 2015 15:07
Coupling RPI wall boiling model with population balance model in Fluent softice2006 Fluent Multiphase 0 February 1, 2015 16:55
Is it possible to model natural convection in a 2D horizontal model in fluent caitoc FLUENT 1 May 5, 2014 13:32
Turbine model - sudden divergence after stabilized residuals Octagon CFX 3 May 27, 2013 18:48


All times are GMT -4. The time now is 07:34.