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Forum: OpenFOAM Running, Solving & CFD

November 20, 2008, 11:14

Replies: 19

StrainRate definition 141 vs 15

Views: 10,173

Posted By floooo

skew(T) = 0.5*(T - T^t) symm(

skew(T) = 0.5*(T - T^t)
symm(T) = 0.5*(T + T^t)

with T = grad(U)

I think the good definition is :

sr = sqrt(2) * mag(symm(fvc::grad(U)))

Florian

Forum: OpenFOAM Running, Solving & CFD

November 20, 2008, 04:00

Replies: 19

StrainRate definition 141 vs 15

Views: 10,173

Posted By floooo

Kerstin => Thanks ehsan =>

Kerstin => Thanks

ehsan => I advise you to post your question in a new topic.
Or to use the search Utility and post your question in a topic which is about rhocentralFoam.
The subject of...

Forum: OpenFOAM Running, Solving & CFD

November 19, 2008, 03:22

Replies: 19

StrainRate definition 141 vs 15

Views: 10,173

Posted By floooo

In Viscosities Model all const

In Viscosities Model all constants are imported with a "_"

if you look in the "Member Functions" part of a viscosity model

k_(powerLawCoeffs_.lookup("k")),
...

Forum: OpenFOAM Running, Solving & CFD

October 10, 2008, 09:02

Replies: 19

StrainRate definition 141 vs 15

Views: 10,173

Posted By floooo

if you add Info << "max(

if you add

Info
<< "max(strainRate): " << max(strainRate()).value()
<< " min(strainRate): " << min(strainRate()).value()
<< endl;

in the powerlow.C file it will print the max and...

Forum: OpenFOAM Running, Solving & CFD

September 25, 2008, 10:37

Replies: 19

StrainRate definition 141 vs 15

Views: 10,173

Posted By floooo

Hello, I compared nonNewton

Hello,

I compared nonNewtonian results.
The pressure is not the same with 1.4.1 and with 1.5 version of OpenFoam.
When I take n=1 => newtonian flow the results are the same.
It due to the...

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