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Surface area of free surface

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Old   July 25, 2007, 15:34
Default Hi all I found the followin
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Hi all

I found the following piece of code in order to calculate surface area of the free surface in interFoam.

volScalarField gradGamma
= mag(fvc::grad(gamma));
scalar totalSurfaceArea
= sum(gradGamma.internalField()*mesh.V());

Can somebody please elaborate on it. I mean the physics part as I understand what this code is doing.

Thanks in advance

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