[manuc]

Hello

I am intertested to know any present exisitng LES model in OpenFOAM which takes care of the issue below:
" In LES introduction of a subgrid Prandtl number which is severely approximated to be a constant. This amounts to considering that the small thermal scales depend solely on the resolved dynamic scales. Therefore it is suspected not to hold in the case of turbulent natural convection, where the flow is produced by buoyant forces and not through a dynamic forcing."

Is there any LES model which doesnt take Pr as a constant and ensures buoyant effects arent damped