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

Cp (Pressure coefficient) using OpenFOAM

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

Reply
 
LinkBack Thread Tools Display Modes
Old   July 21, 2012, 22:30
Default Cp (Pressure coefficient) using OpenFOAM
  #1
hfs
Member
 
Join Date: Jul 2012
Posts: 60
Rep Power: 5
hfs is on a distinguished road
Hello everyone!

I am doing a wind simulation on a membrane. I am interested in the Cp values on the membrane surface... any ideas how to get it?

Thank you!
hfs is offline   Reply With Quote

Old   August 22, 2012, 09:52
Default
  #2
Member
 
Join Date: Apr 2012
Location: France
Posts: 72
Rep Power: 5
Rider is on a distinguished road
Hi,

I use this thread to ask my question.

How can I get this type of pressure coefficient (Cp) graph? (cf. picture)




Thanks
Rider is offline   Reply With Quote

Old   August 30, 2012, 08:16
Default
  #3
Member
 
Join Date: Apr 2012
Location: France
Posts: 72
Rep Power: 5
Rider is on a distinguished road
anybody ?
Rider is offline   Reply With Quote

Old   September 11, 2012, 09:47
Default
  #4
Senior Member
 
Tobi's Avatar
 
Tobias Holzmann
Join Date: Oct 2010
Location: Leoben (Austria)
Posts: 1,089
Blog Entries: 6
Rep Power: 19
Tobi will become famous soon enough
Send a message via ICQ to Tobi Send a message via Skype™ to Tobi
Pressure coefficent ?
Do you mean the lift and drag coefficents?

Tobi
Tobi is offline   Reply With Quote

Old   September 12, 2012, 09:30
Default
  #5
Member
 
Join Date: Apr 2012
Location: France
Posts: 72
Rep Power: 5
Rider is on a distinguished road
Not really. I have my lift and drag coefficients (Cl and Cd), but I would like to see the distribution of the pressure around the geometry.
Rider is offline   Reply With Quote

Old   September 26, 2012, 05:29
Default
  #6
Member
 
Join Date: Mar 2009
Posts: 72
Rep Power: 8
aerogt3 is on a distinguished road
You can calculate them very easily inside of paraview. Then they can be display in the same way as any other variable.
aerogt3 is offline   Reply With Quote

Old   September 26, 2012, 06:03
Default
  #7
Member
 
Join Date: Apr 2012
Location: France
Posts: 72
Rep Power: 5
Rider is on a distinguished road
Can you explain me how to do that ?

Thanks
Rider is offline   Reply With Quote

Old   September 26, 2012, 08:31
Default
  #8
Member
 
Join Date: Mar 2009
Posts: 72
Rep Power: 8
aerogt3 is on a distinguished road
Quote:
Originally Posted by Rider View Post
Can you explain me how to do that ?

It's very easy. Select the data you want to operate on (the full case, a single surface you have extracted, etc.) Highlight that and click the calculator button, or go
Filters > Alphabetical > Calculator.

You can select point or cell data, and then use it as a normal calculator, using the Scalar/Vector variables available at the bottom. Hit apply and it will calculate.
aerogt3 is offline   Reply With Quote

Old   November 8, 2012, 09:54
Default
  #9
Member
 
Join Date: Nov 2010
Posts: 50
Rep Power: 6
Doug68 is on a distinguished road
Hi,

I am struggling with a similar issue to Rider, trying to work out the center of pressure for a shape.
Search has failed me so far, any advice would be appreciated.

Thanks.
Doug68 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
Pressure coefficient Giuseppe FLUENT 2 July 26, 2015 03:19
Water subcooled boiling Attesz CFX 7 January 5, 2013 04:32
Pressure BC for combustion chamber Giuki FLUENT 1 July 19, 2011 11:35
How to apply negtive pressure to outlet bioman66 CFX 5 June 3, 2006 01:40
Problem in Result of the pressure coefficient Ken Choi Main CFD Forum 2 March 15, 1999 05:15


All times are GMT -4. The time now is 16:04.