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inner product of two vectors in OpenFoam

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Old   May 29, 2012, 19:28
Default inner product of two vectors in OpenFoam
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I have a mathematical operation in the form of (depsilon/dxi*depsilon/dxi) in which d(epsilon)/dxi is the gradient of epsilon. So, I have a inner product of two gradient vectors?!
Can I show this inner product as the follwoing way?!

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Old   May 30, 2012, 03:47
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Nima Samkhaniani
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yes, it depends on the operator between two! vector , if it is inner product, then
it would be fvc::grad(epsilon) & fvc::grad(epsilon)
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