CFD Online Discussion Forums - Script to obtain "real" static pressure (pressure times density)

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Script to obtain "real" static pressure (pressure times density)

Hello,

I am struggling with making the really easy scripting line which I am sure is very useful for all OpenFOAM users !
How to obtain the "real" static pressure from an openfoam incompressible solver ?
So performing p*density on the relevant lines.
Let's say in a bash line, it would be perfect :)!

for example, my "p" file looks like

PHP Code:


		
			
scalar
part
         1
hexa8
 6.11803e+02
 6.11877e+02
 6.11775e+02
 6.11666e+02

and after using

Quote:

awk -F " " '{print $1*1.225}' p > p_output

PHP Code:

While of course I would like to have

PHP Code:


		
			
scalar
part
         1
hexa8
  749.459
  749.549
  749.424
  749.291

To have a p field still working in openfoam.

Any idea how to set this condition in awk ? Or using sed ? Or running something in openfoam ?

If anybody comes to find solution here like me. I have tried out the simple way in OF2012

Code:

postProcess -func "staticPressure(p, pRef=**, rho=rhoInf, rhoInf=**)"

Just replace ** with the values you want. Results is then stored in static(p). I use this to transfer results from pimpleFoam to interPhaseChangeFoam.