[Chilli83]

Hi all

I am working with a HVAC simulation where I have to model 150 persons in a large enclosure but I have some trouble regarding the physics for buoyancy turbulence.

I have defined the buoyancy with a gravity of 0, 0 and –g in x, y and z direction respectively. The reference density for the buoyancy I am using the ideal gas law. When I am setting up the Fluid Model I choose the Shear Stress Transport since I get the benefits of the k-epsilon and k-omega models. Since I am calculating with buoyancy I have the option to activate Buoyancy Turbulence and take Production and Dissipation into account. My question is then if this should be done because I thought that it was already included in the k-epsilon and k-omega turbulence models?

Kind regards
Michael