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Old   September 2, 2009, 06:39
Default Problem about the Temperature Equation
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J. Cai
Join Date: Apr 2009
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I am wondering why the temperature equation of buoyantBoussinesqPisoFoam/Simple is considering both the laminar and turbulent Prandtl numbers attached in the follows.
According to the energy conservation equation, it should be enough only considering the turbulent one for a turbulent case.
Can anyone give me an explanation? Thanks in advance.

volScalarField kappaEff
turbulence->nu()/Pr + turbulence->nut()/Prt
fvScalarMatrix TEqn
+ fvm::div(phi, T)
- fvm::laplacian(kappaEff, T)
rhok = 1.0 - beta*(T - TRef);
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