Pressure distributions in potentialFoam

JoeLindsey · November 7, 2011, 10:43

Hi everyone,

I'm a new user to OpenFoam and am currently trying to run some inviscid simulations using potentialFoam.

I've run the cylinder tutorial and also a 2D case with a NACA0012 aerofoil. However, while the velocity distributions for both these cases looked correct, the pressure distributions looked completely wrong, looking more like a distribution of velocity potential (when running potentialFoam -writep).

Has anyone else experienced this problem, and if so, did they ind a solution?

Cheers

Joe

boger · November 8, 2011, 09:10

You're right -- "p" within the solver and as written out is simply the velocity potential. You'll need to calculate the static pressure on your own from the velocity field and the total pressure.

hjasak · November 8, 2011, 12:08

Done in OpenFOAM-1.6-ext.

Hrv

Antony_Bosco · November 23, 2015, 07:23

Hello Everyone,

Has anyone figured out how to calculate total pressure (=static p + dynamic p) for potentialFoam?

November 7, 2011, 10:43	Pressure distributions in potentialFoam	#1
JoeLindsey New Member Joe Lindsey Join Date: Nov 2011 Posts: 1 Rep Power: 0	Hi everyone, I'm a new user to OpenFoam and am currently trying to run some inviscid simulations using potentialFoam. I've run the cylinder tutorial and also a 2D case with a NACA0012 aerofoil. However, while the velocity distributions for both these cases looked correct, the pressure distributions looked completely wrong, looking more like a distribution of velocity potential (when running potentialFoam -writep). Has anyone else experienced this problem, and if so, did they ind a solution? Cheers Joe

November 8, 2011, 09:10		#2
boger Senior Member David Boger Join Date: Mar 2009 Location: Penn State Applied Research Laboratory Posts: 146 Rep Power: 17	You're right -- "p" within the solver and as written out is simply the velocity potential. You'll need to calculate the static pressure on your own from the velocity field and the total pressure. __________________ David A. Boger

November 8, 2011, 12:08		#3
hjasak Senior Member Hrvoje Jasak Join Date: Mar 2009 Location: London, England Posts: 1,905 Rep Power: 33	Done in OpenFOAM-1.6-ext. Hrv __________________ Hrvoje Jasak Providing commercial FOAM/OpenFOAM and CFD Consulting: http://wikki.co.uk

November 23, 2015, 07:23	Static pressure	#4
Antony_Bosco New Member Antony Premkumar Join Date: Jul 2015 Posts: 18 Rep Power: 10	Hello Everyone, Has anyone figured out how to calculate total pressure (=static p + dynamic p) for potentialFoam?

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