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Forum: OpenFOAM

October 19, 2011, 11:26

Replies: 12

about alpha in OPenfoam's sutherland part

Views: 5,617

Posted By jason_wy

This is the reference I have. I don't have it in...

This is the reference I have. I don't have it in hand. You proabably can find the formula elsewhere too. Good luck.

modified Euchen formula (Thermophysical Properties of Fluids: An Introduction...

Forum: OpenFOAM

October 19, 2011, 09:03

Replies: 12

about alpha in OPenfoam's sutherland part

Views: 5,617

Posted By jason_wy

You are making an assumption that Prandtl Number...

You are making an assumption that Prandtl Number is 1, which is not general.

kappa is computed by modified Euchen Formula

Forum: OpenFOAM

October 18, 2011, 09:10

Replies: 12

about alpha in OPenfoam's sutherland part

Views: 5,617

Posted By jason_wy

Yes, but you need to compute Kappa first: ...

Yes, but you need to compute Kappa first:

Kappa = mu(T)*Cv_*(1.32 + 1.77*this->R()/Cv_)

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