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

Divergence detected in AMG solver : epsilion

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   April 4, 2014, 06:54
Default Divergence detected in AMG solver : epsilion
  #1
New Member
 
john reese
Join Date: Sep 2013
Posts: 1
Rep Power: 0
maheshbabu is on a distinguished road
Hi,
When I run my simulation in ANSYS 14.0,Its saying "Divergence detected in AMG solver : epsilion".I have a 2d rectangular duct in which air is moving with a velocity of 8 m/s.I have created geometry and meshed in ICEM with following mesh quality results
determinant 2x2 = 0.998 , equiangle skewness = 0.7 and min orthogonal quality close to 0. I am using a k epsilion RNG as turbulence model. There is no radiation involved.Below are conditions involved
1. top heat wall = 1000 W/m^2
2. bottom wall = adiabatic wall
3. velocity inlet = 8 m^2/s
4. pressure outlet
I am using SIMPLE algorithm, standard for pressure and second order upwind for all other's. I have also tried using presto for pressure but still its saying divergence detected in AMG solver : epsilion .
I would be really grateful if you can help me out to make my case converge
Thank you very much,
Mahesh
maheshbabu is offline   Reply With Quote

Reply

Tags
divergence amg, fluent, rng k-epsilon, turbulence modeling

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
Divergence detected in AMG solver: pressure correction xinquanzhoucn FLUENT 5 July 21, 2014 05:49
Divergence detected in AMG solver: temperature otubaba FLUENT 7 October 29, 2013 09:39
Floating point error and divergence detected aannjj FLUENT 0 July 2, 2013 04:44
3d vof Smaras FLUENT 2 February 19, 2013 07:58
Quarter Burner mesh with periosic condition SamCanuck FLUENT 2 August 31, 2011 12:34


All times are GMT -4. The time now is 09:51.