CFD Online Logo CFD Online URL
Home > Forums > Main CFD Forum

get instationary response

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

LinkBack Thread Tools Display Modes
Old   November 17, 2009, 05:14
Default get instationary response
New Member
Join Date: Nov 2009
Posts: 1
Rep Power: 0
hugdev is on a distinguished road
work on a flow around an airbrake, which in reality has transient solutions. The problem is that cfx always send me the same steady response, even when I lauch the transient mode.
How could I do to get a transient solution, how could I insert the instationarity? are there typical initial conditions, typical boundary conditions to get that kind of transient response?
Thanks for your help
hugdev is offline   Reply With Quote

Old   November 17, 2009, 05:28
New Member
Join Date: Sep 2009
Posts: 10
Rep Power: 10
CP85 is on a distinguished road

some things that come into my mind:

Is the mesh fine enough?
Did you try different turbulence-models?
Is the timestep fine enough when performing an instationary solution?
Are the flow velocity and the fluid parameters compareable to reality?
CP85 is offline   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
Response time of Fluent support Rami FLUENT 8 March 5, 2008 03:00
'No response from HOST' error-Moving mesh problems Alfred Herman Siemens 1 June 15, 2007 06:53
How to plot time response curve in fluent sam FLUENT 0 September 7, 2006 16:15
Awaiting your response m. malik Main CFD Forum 0 April 12, 2005 12:43
Using neural networks for CDF response surfaces Ali Habibi Main CFD Forum 3 October 8, 1999 22:56

All times are GMT -4. The time now is 01:51.