CFD Online Logo CFD Online URL
Home > Forums > FLUENT

Fluent error in periodic PDF combustion cases??

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

LinkBack Thread Tools Display Modes
Old   March 2, 2004, 17:41
Default Fluent error in periodic PDF combustion cases??
Posts: n/a
Hi everybody,

I recently tried to simulate my NG combustion case on a rotationally periodic grid. With the Magnussen-Hjertager model I get relatively good results, so I'd like to compare them with assumed PDF model and laminar flamelet model. But I get unrealistic (low) temperature profiles around the rotationally periodic faces. Did somebody of you get into this kind of trouble or otherwise has a positive experience?

Thanks, George

  Reply With Quote

Old   March 4, 2004, 08:48
Default The Fluent error is located
Posts: n/a
I just want to let you know I found the reason for the physically incorrect behaviour. It was coused by "node-based" gradient calculation option in the "Solver" panel. When I switch to the older cell-based method, the error vanishes. So there must be an error in the implementation of the node-based gradient calculation, which however has effect only in certain circumstances.

good luck G.
  Reply With Quote

Old   March 8, 2004, 17:45
Default The Fluent error
Posts: n/a
hi , this is shankar, i have done modeling using gambit and when iam trying to read the mesh in fluent6, fluent gives some error. It says - no cells in zone id=0, ind1=1 and ind n=0 i donno what that means. i have tried many ways modeling and trying to read in fluent. but the same error always shows up.

If any one knows some thing about this,please give me an email . i would be very much thankful.

  Reply With Quote


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 about periodic boundary condition in Fluent winnawinna FLUENT 0 December 29, 2010 00:32
few quesions on ANSYS ICEMCFD and FLUENT Prakash.Paudel ANSYS 0 August 12, 2010 12:07
Combustion SImulation in Fluent santhosh1987 FLUENT 1 May 14, 2010 16:03
Coal combustion with Fluent 4.5 or 5.0! Sriram Popuri Main CFD Forum 2 July 24, 1999 11:34
internal combustion engines with FLUENT Elizabet Main CFD Forum 1 April 14, 1999 13:10

All times are GMT -4. The time now is 03:38.