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

Convergence Problem in Multiphase problem (three phases)

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   August 2, 2018, 09:23
Default Convergence Problem in Multiphase problem (three phases)
  #1
Member
 
Muhammad Ali Uzair
Join Date: Sep 2017
Posts: 43
Rep Power: 6
m.uzair is on a distinguished road
Dear All,

I am facing convergence problem in multiphase (eulerian-eulerian) problem

Problem Description
three phases: air, and two granular phases
air enters from the bottom
one slid phase is patched inside the domain
second phase enters the domain via mass-inflow boundary condition at some height above the region where first solid phase is patched

the velocities of two solid phases phases don't converge. despite lowering the under relaxation factors, reducing time step size....

In the beginning they converge, but when the two solid phases come together, there is problem....

Can someone please explain this and provide a possible solution to this problem

thanks and Best Regards
m.uzair is offline   Reply With Quote

Reply

Tags
fluent, multiphase flow

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
Temporal convergence of RK method on shock tube problem arungovindneelan Main CFD Forum 9 November 12, 2017 04:56
Multiphase problem with convergence of evaporation Mike_Tom CFX 0 October 18, 2016 12:44
Convergence issue in natural convection problem chrisf90 FLUENT 5 March 5, 2016 09:30
Continuity Convergence Problem in CFX cfd seeker CFX 2 July 2, 2015 12:12
convergence problem with SIMPLER NURAY KAYAKOL Main CFD Forum 1 February 24, 1999 14:43


All times are GMT -4. The time now is 15:29.