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

Help with this iterate problem

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

Reply
 
LinkBack Thread Tools Display Modes
Old   May 2, 2012, 08:23
Default Help with this iterate problem
  #1
New Member
 
zhou minjian
Join Date: May 2012
Posts: 1
Rep Power: 0
conanzmj is on a distinguished road
Good evening everyone.
What I am trying to simulate is a gear pump, but every time I iterate ,it comes the problem of 'Error: Update-Dynamic-Mesh failed. Negative cell volume detected.'
I have examined the grids in the gambit and checked it before iterating.But the problem always comes out after about 30 steps when I set the time step size of 0.0001s. Some authers suggest me to decrease the time step size. But if I decrease the time step size, the error comes out as well. I nearly tried everything that I can do, but still can't solve it. Can you help me and give some suggestions?
THANKS.
conanzmj is offline   Reply With Quote

Reply

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
Problem with interFoam; Wave/wiggle alpha1 behavior JonW OpenFOAM 3 February 23, 2013 21:41
UDF compiling problem Wouter Fluent UDF and Scheme Programming 6 June 6, 2012 04:43
natural convection problem for a CHT problem Se-Hee CFX 2 June 10, 2007 06:29
Adiabatic and Rotating wall (Convection problem) ParodDav CFX 5 April 29, 2007 19:13
Is this problem well posed? Thomas P. Abraham Main CFD Forum 5 September 8, 1999 14:52


All times are GMT -4. The time now is 22:02.