[coolcrasher]

Hi Foamers,

I have simulated centrifugal pump using OpenFoam 2.4.0 and working on post processing of it.

I have to calculate Mass Flow Rate at Inlet and outlet patches. Also I have to calculate the Mass Flow averaged Total Pressure at inlet and Outlet patches.

I have some questions though:

1) I have used patchIntegrate phi to evaluate the Mass Flow Rate at inlet and outlet. I am getting a reasonable value at outlet patch but getting value zero at inlet patch ( but inlet velocity given is ( 0 0 4.5 ) ). I dont understand why its zero.

2) What is the difference between patchAveragie and patchIntegrate ? I have used patchAverage phi but openfoam says its an error and says Only possible to average volfields but phi is surfaceScalarField

3) How the total pressure be attained and perform mass flow averaging on the inlet and outlet patches.

I have gone through many forums but could not get a clear answer. I am new to CFD and using Openfoam.

Any help regarding this would be great

Thanks and Best Regards