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Old   March 26, 2015, 06:59
Default viscosity model
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NH1994
Join Date: Oct 2014
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Hi,
i want to use a nonlinear viscosity model for a specific case like powerlaw or birdcarrue but when i change Newtonian to powerlaw or birdcarreu in
transportproperties , the solver run it with the Newtonian model.

HTML Code:
/*--------------------------------*- C++ -*----------------------------------*\
| =========                 |                                                 |
| \\      /  F ield         | OpenFOAM Extend Project: Open Source CFD        |
|  \\    /   O peration     | Version:  1.6-ext                               |
|   \\  /    A nd           | Web:      www.extend-project.de                 |
|    \\/     M anipulation  |                                                 |
\*---------------------------------------------------------------------------*/
FoamFile
{
    version     2.0;
    format      ascii;
    class       dictionary;
    object      transportProperties;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
transportModel  BirdCarreau ;
nu              nu [0 2 -1 0 0 0 0] 0.01;
BirdCarreauCoeffs
{
    nu0             nu0 [ 0 2 -1 0 0 0 0 ] 0.0244370772e-3;
    nuInf           nuInf [ 0 2 -1 0 0 0 0 ] 0.0030515582e-3;
    k               k [ 0 0 1 0 0 0 0 ] 4.9414230738;
    n               n [ 0 0 0 0 0 0 0 ] 0.4635742916;
}
Can you help me?please

Thanks
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