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Search: Posts Made By: niko0807
Forum: OpenFOAM Running, Solving & CFD December 4, 2015, 12:47
Replies: 82
Views: 49,851
Posted By niko0807
Hi, The viscous shear stress tensor (the one...

Hi,

The viscous shear stress tensor (the one I call \sigma_{ij} and you call \tau_{ij}) is given by,


\sigma_{ij}=\left[2\mu S_{ij}+\bigg(\mu_v-\frac{2}{3}\mu\bigg)\frac{\partial u_k}{\partial...
Forum: OpenFOAM Running, Solving & CFD December 4, 2015, 10:56
Replies: 82
Views: 49,851
Posted By niko0807
Hi, Thanks! I expected k to be small and...

Hi,

Thanks! I expected k to be small and negligible.

Correct me if I am wrong, but I do not think you are right in connection with the viscosity.

The RANS equation expressed with the...
Forum: OpenFOAM Running, Solving & CFD December 4, 2015, 08:31
Replies: 82
Views: 49,851
Posted By niko0807
Hi Tobias, Thank you for your thorough...

Hi Tobias,

Thank you for your thorough answer.

As I understand, you suggest that I have mixed up turbulent kinematic energy and bulk viscosity. I do not think that is the case. According to...
Forum: OpenFOAM Running, Solving & CFD December 4, 2015, 05:40
Replies: 82
Views: 49,851
Posted By niko0807
Hi, I have been trying to figure out the...

Hi,

I have been trying to figure out the exact implementation of incompressible RANS equation based on this thread and this article

http://openfoamwiki.net/index.php/BuoyantBoussinesqPisoFoam...
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