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Forum: OpenFOAM

February 22, 2010, 14:00

Replies: 12

Non-Newtonian Flow: is it implemented right?

Views: 8,652

Posted By ternik

Hi Lachlan, nice to see that my post...

Hi Lachlan,

nice to see that my post regarding correct shear rate (or better said 2nd invariant of symmetrical rate-of-deformation tensor) did help you!

Enjoy,
Primoz

Forum: OpenFOAM

August 17, 2009, 13:13

Replies: 12

Non-Newtonian Flow: is it implemented right?

Views: 8,652

Posted By ternik

Hi Alex, I think that correct implementation of...

Hi Alex,
I think that correct implementation of shear rate (IInd invariant of symmetrical rate of deformation tensor) should be:

return sqrt(2.0)*mag(symm(fvc::grad(U_)));

I have done it...

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