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how to implement powerLaw

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Old   February 15, 2012, 20:58
Default how to implement powerLaw
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Michikazu Nakamura
Join Date: Feb 2012
Location: Yamanashi, Japan
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I am trying to run nonNewtonianIcoFoam with transportProperties being powerLaw.
I have a flow curve of non-Newtonian flud.

I found the thread on transportProperties for powerLaw

************************************
transportModel powerLaw;

nu nu [0 2 -1 0 0 0 0] 1e-05;

powerLawCoeffs
{
k k [0 2 -1 0 0 0 0] 2500;
n n [0 0 0 0 0 0 0] 0.4;
nuMin nuMin [0 2 -1 0 0 0 0] 0;
nuMax nuMax [0 2 -1 0 0 0 0] 100;
}


************************************
I figured k is the constant of power law equation.
(viscosity) = k * (velocity) ^ (n-1)

What are nuMax and nuMin?
I attached a figure of a flow curve.
Are nuMax and nuMin defind like this figure?
And, what is nu, then?

I would be very apprecitated, if somebody could help me.
Attached Images
File Type: jpg flow curve .jpg (40.7 KB, 166 views)
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