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Hi!
I'm modeling gas flow trough statical mixer. I'm using Pascals in my boundary conditions (dimensions [1 -1 -2 0 0 0 0] . I'm using swak4foam to calculate pressure drop between inlet and outlet:

Code:



    pressureDrop

    {

        type patchExpression;

        variables ( 

            "pOut{patch'outlet}=sum(p*area())/sum(area());"

            "inArea=sum(area());"

        );

        accumulations (

           sum

        );

        patches (

            inlet

        );

        expression "area()*(p-pOut)/inArea";

        verbose true;

    }

The problem is that the calculated pressure drop is much less than expected. Which units is applied in swak4foam output?
OF 2.1.1
solver: rhoSimplecFoam

Thanks
-Eranho