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-   -   Cp (Pressure coefficient) using OpenFOAM (https://www.cfd-online.com/Forums/openfoam-post-processing/105062-cp-pressure-coefficient-using-openfoam.html)

 hfs July 21, 2012 22:30

Cp (Pressure coefficient) using OpenFOAM

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!

 Rider August 22, 2012 09:52

Hi,

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

http://nsa30.casimages.com/img/2012/...0610568390.jpg

Thanks ;)

 Rider August 30, 2012 08:16

anybody ? :o

 Tobi September 11, 2012 09:47

Pressure coefficent ?
Do you mean the lift and drag coefficents?

Tobi

 Rider September 12, 2012 09:30

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.

 aerogt3 September 26, 2012 05:29

You can calculate them very easily inside of paraview. Then they can be display in the same way as any other variable.

 Rider September 26, 2012 06:03

Can you explain me how to do that ?

Thanks

 aerogt3 September 26, 2012 08:31

Quote:
 Originally Posted by Rider (Post 383683) 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.

 Doug68 November 8, 2012 09:54

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.

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