CFD Online Logo CFD Online URL
Home > Forums > FLUENT

force data exported on boundary nodes

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

LinkBack Thread Tools Display Modes
Old   June 7, 2009, 14:22
Default force data exported on boundary nodes
New Member
Join Date: Jun 2009
Posts: 1
Rep Power: 0
greg is on a distinguished road
Hi all,

There is the option in Fluent that allows you to export the forces at the node boudaries, for example when you write out a force file for ansys. I was looking into how Fluent calculates the forces by trying myself by hand (well in excel!) to replicate the forces written out by Fluent, however, I get slightly different forces values than that of Fluent?

What I assumed was that Fluent uses the face surface area vector (which you can export from Fluent) and multiples it with surface pressure (only doing an inviscid test here). But what does Fluent do for the surface pressure value? What does it do when interpolating the pressure from the cell center to the cell face?

Has anyone checked this before? Verified that it's correct?

Many thanks in advance,

greg 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
data as boundary condition and not a expression Rogerio Fernandes Brito CFX 7 February 8, 2008 20:26
How to update polyPatchbs localPoints liu OpenFOAM Running, Solving & CFD 6 December 30, 2005 18:27
nodes number within boundary layer Gab CFX 5 July 5, 2005 12:57
Convective Heat Transfer - Heat Exchanger Mark CFX 6 November 15, 2004 16:55
flat plate boundary layer data Ekachai Juntasaro Main CFD Forum 3 March 14, 2001 00:18

All times are GMT -4. The time now is 05:38.