CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > FLUENT

how does Fluent calculate the pressure and viscous force vector?

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

Reply
 
LinkBack Thread Tools Display Modes
Old   March 21, 2010, 15:25
Default how does Fluent calculate the pressure and viscous force vector?
  #1
Member
 
Ralf Schmidt
Join Date: Mar 2009
Location: Austria
Posts: 67
Rep Power: 8
Ralf Schmidt is on a distinguished road
Hi!

can someone explain me, how does Fluent calculate the pressure and viscous force vector?

In the handbook in section "29.3.1 Computing Forces, Moments, and the Center of Pressure" it is only described, that the total force component is computed using the pressure and viscous force vector.

But, hoe are they calculated?? I didn't found anything about that in the manual...

Thank you!
Ralf

P.S.: I found following: "net pressure force vector, acting on a wall zone, is computed as the vector sum of the individual force vectors for each cell face"

But.. how to calculate the individual force vectors??
__________________
CFD - nothing but Colourful Fluid Dynamics
Ralf Schmidt is offline   Reply With Quote

Old   May 17, 2010, 15:29
Default
  #2
New Member
 
Join Date: Mar 2010
Location: Germany
Posts: 2
Rep Power: 0
Pasha_l is on a distinguished road
Hallo, haben Sie was weiter entdeckt zur Berechnung der viskosen Kräften?
Pasha_l is offline   Reply With Quote

Old   May 17, 2010, 15:49
Default
  #3
Member
 
Ralf Schmidt
Join Date: Mar 2009
Location: Austria
Posts: 67
Rep Power: 8
Ralf Schmidt is on a distinguished road
not so far ... i am looking now in a totally other direction...
__________________
CFD - nothing but Colourful Fluid Dynamics
Ralf Schmidt is offline   Reply With Quote

Reply

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 to calculate the viscous and inertial resistance coefficients? omurakbayir FLUENT 1 November 22, 2010 23:36
Calculate forces without hydrostatic pressure geir_oye FLUENT 4 November 12, 2009 10:12
Pressure Coefficient Viscous Coefficient gunposer FLUENT 0 June 15, 2009 07:10
pressure force and viscous force CFD FLUENT 0 March 7, 2006 02:03
what the result is negatif pressure at inlet chong chee nan FLUENT 0 December 29, 2001 06:13


All times are GMT -4. The time now is 15:06.