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

Grid check failed .... run simulation useless?

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   May 16, 2012, 06:32
Default Grid check failed .... run simulation useless?
  #1
Senior Member
 
Join Date: May 2011
Location: Germany
Posts: 130
Rep Power: 14
Zigainer is on a distinguished road
Hi,

I was just windering, if the grid check fails (in my case due to face handedness (left-handed cells but no negative volume)) any simulation is useless?
So without a passed grid check it's not worth to start a simulation?
I anyway get convergence with the first iteration and I think it is the grid quality, but I am not sure.
Am I right?
Zigainer is offline   Reply With Quote

Old   May 16, 2012, 08:10
Default
  #2
Member
 
prince
Join Date: Jun 2011
Posts: 56
Rep Power: 14
prince_pahariaa is on a distinguished road
Yeah you are right..

Grid check should not fail in gambit
Check the area where you are observing face handedness problem.
Change the grid
prince_pahariaa is offline   Reply With Quote

Old   May 17, 2012, 05:31
Default
  #3
New Member
 
Yogesh Patil
Join Date: Nov 2009
Posts: 20
Rep Power: 16
foamcfd is on a distinguished road
Do you mean that you are having the divergence right from first iteration? Are you using grid interfaces (non conformal mesh)? If so then I wouldn't worry too much for fewer left handed cells. If not then it should be fixed. However before concluding left handed faces for the divergence, I would have one more look in my case set up.
foamcfd is offline   Reply With Quote

Reply

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
grid check failed yubaibai88 FLUENT 5 April 7, 2010 08:05
OF 1.6 | Ubuntu 9.10 (64bit) | GLIBCXX_3.4.11 not found piprus OpenFOAM Installation 22 February 25, 2010 14:43
Procedure to run unsteady simulation? STN Main CFD Forum 2 February 16, 2002 05:37
MESH CHECK FAILED right/left handed faces Rodrigo Madariaga FLUENT 2 June 28, 2001 11:15
Grid Independent Solution Chuck Leakeas Main CFD Forum 2 May 26, 2000 12:18


All times are GMT -4. The time now is 04:10.