CFD Online Logo CFD Online URL
Home > Forums > FLUENT

Problem in Compution of Transonic Unsteady Aerodyn

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

LinkBack Thread Tools Display Modes
Old   November 28, 2003, 13:10
Default Problem in Compution of Transonic Unsteady Aerodyn
Xuemei Chen
Posts: n/a
I am computing the drag, lift& moment of a fluttering wing using Dynamic mesh module in Fluent 6.1.22. The initial velocity is given to the wing to start the first time step, then UDF is employed to calculate the pressure on the wing to get the current velocity. The time step is as small as one thousand percent of the fluttering period. Unfortunately, I still got non-positive volume afer about 40 time steps. Has anyone experienced such thing or does anyone have any suggestion? Thanks!
  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
how i can solve this unsteady problem sarmadi Main CFD Forum 17 September 6, 2011 08:54
unsteady heat transfer model problem Beryl FLUENT 0 July 12, 2011 23:26
Problem with implicit unsteady solver CCMuser STAR-CCM+ 2 March 3, 2010 12:20
steady and unsteady Euler eq problem AO Main CFD Forum 3 January 27, 2004 17:29
Question concerning about unsteady problem.... ghlee Main CFD Forum 6 October 2, 1998 05:36

All times are GMT -4. The time now is 05:09.