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

Cp function of density ?

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   September 16, 2011, 13:18
Default Cp function of density ?
  #1
Member
 
Join Date: Sep 2010
Posts: 30
Rep Power: 15
Voyage_gui is on a distinguished road
Hi Everyone,

I was wondering if there is a dependance of the Cp to the density. If for example you have same pb with 2 different densities, will it change the result of the Cp ?

Thanks a lot

Guillaume
Voyage_gui is offline   Reply With Quote

Old   September 20, 2011, 07:05
Default
  #2
Member
 
Join Date: Jul 2011
Posts: 42
Rep Power: 14
A.D.E is on a distinguished road
Dear Guillaume


The pressure Coefficient is defined as: Cp = (P-Pinf)/(0.5.\rho.U^{2}inf)


Therefore is inversely proportional to the density.


Sincerely,


A.D.E
A.D.E is offline   Reply With Quote

Old   September 20, 2011, 07:17
Default
  #3
Member
 
Join Date: Sep 2010
Posts: 30
Rep Power: 15
Voyage_gui is on a distinguished road
Thanks A.D.E. But Pressure is also function of rho from NS but not linearly because of the viscous term. So at the end , what s the influence of density on the Cp ?

Guillaume
Voyage_gui is offline   Reply With Quote

Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
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 Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
LiencubiclowRemodel nzy102 OpenFOAM Bugs 14 January 10, 2012 09:53
Density as function of depth UDF ageorg FLUENT 0 April 11, 2011 15:03
How to get probability density function (PDF) in OpenFoam? openfoam15 OpenFOAM 5 July 6, 2009 04:37
Density as function of pressure sorrego CFX 4 May 21, 2009 11:34
User defined function for density gradient ben akih CFX 3 October 10, 2006 22:47


All times are GMT -4. The time now is 07:57.