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

Too high pressure force ?

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

LinkBack Thread Tools Display Modes
Old   March 14, 2000, 06:51
Default Too high pressure force ?
Tim Franke
Posts: n/a
Hello everybody,

I'm doing a simulation on a very slim body similar to an airfoil. I have problems in getting the drag right. There's no separation at the body. If I split up the drag force into force by shear stress and force by pressure the pressure force is exactly the wrong offset from the experimental value. I have thought, that for a slim body the drag is only due to wall shear stress, so why do I have an additional pressure force. I have used the standard k-eps model.

Thanks for your comments.

  Reply With Quote

Old   March 15, 2000, 00:36
Default Re: Too high pressure force ?
Bob Anderson
Posts: n/a
Maybe you could try working on the Euler calculation first, to see if you are getting the expected result. Then work your way back up to the full blown turbulent viscous case.

  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
"Pressure Inlet" Boundary Setup Wijaya FLUENT 14 August 26, 2015 06:02
Pressure Force Integral Steve R FLUENT 1 February 4, 2013 14:07
how does Fluent calculate the pressure and viscous force ? e30.lsb FLUENT 7 June 27, 2011 21:31
Force vs. pressure integration CFX-post realanony87 CFX 0 May 30, 2009 16:37
How to get the pressure force on a surface? Jimmy CD-adapco 5 January 25, 2008 06:54

All times are GMT -4. The time now is 05:51.