CFD Online Logo CFD Online URL
Home > Forums > Software User Forums > ANSYS > FLUENT

Divergence detected in AMG solver: temperature

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

Like Tree1Likes
  • 1 Post By raj_kumar

LinkBack Thread Tools Search this Thread Display Modes
Old   September 6, 2016, 16:48
Default Divergence detected in AMG solver: temperature
New Member
Join Date: Sep 2016
Posts: 1
Rep Power: 0
raj_kumar is on a distinguished road
i am analysing the heat distribution inside a passenger car. for that i imported the model from solidworks and continued the process but i am getting warnings like:

Note: zone-surface: cannot create surface from sliding interface zone.
Creating empty surface.
Info: Interface zones overlap for mesh interface contact_region-contact_region_2-contact_region_8-contact_region_3-contact_region_8-contact_region_9-contact_region_4-contact_region_5-contact_region_8-contact_region_6-contact_region_8-contact_region_9-contact_region_7-contact_region_9.
This could adversely affect your solution.
Warning: Failed to correct face handedness of 92 out of 148 left-handed faces on the sliding interface zone 16.

and ignoring these warning when calculating solution it display: Divergence detected in AMG solver: temperature
Attached Images
File Type: jpg u1.jpg (81.2 KB, 13 views)
dexter likes this.
raj_kumar is offline   Reply With Quote

Old   September 7, 2016, 02:57
Senior Member
Paritosh Vasava
Join Date: Oct 2012
Location: Lappeenranta, Finland
Posts: 732
Rep Power: 21
vasava will become famous soon enough
Firstly you have to look in to why you have left handed mesh faces. In your case the reason is the non-matching meshes at interfaces. Other reason is sharp angles or corners in the geometry.

The easiest way would be to fix the mesh with TUI commands. If you can not, then you have to generate the mesh again.
vasava 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
PEMFC model with FLUENT brahimchoice FLUENT 22 April 19, 2020 15:44
fluent divergence for no reason sufjanst FLUENT 2 March 23, 2016 16:08
Fluidized Bed: Error: Divergence detected in AMG solver: pressure correction Error Ob Mole89 FLUENT 5 April 12, 2014 09:32
Divergence detected in AMG solver: temperature otubaba FLUENT 7 October 29, 2013 08:39
Quarter Burner mesh with periosic condition SamCanuck FLUENT 2 August 31, 2011 11:34

All times are GMT -4. The time now is 10:51.