[stevek]

To all the wind modelers:

I have been having problems including buoyancy for atmospheric stability considerations into my flow model.

I have a model which works well with icoFoam and rhoPimpleFoam for generic wind modeling purposes over complex terrain. However I wish to use the unsteady buoyantPisoFoam to include stability effects. I am certain that my problems have to do with BCs so my question is:

How to implement the buoyantPressure bc correctly for a case with an inlet to the left, outlet to the right, atmosphere on the top and terrain on the bottom with symmetry planes on the sides?

Any help would be much appreciated!