I have been trying to validate flow over a heated square cylinder using buoyantBoussinesqPimpleFoam. However, the lift coefficient is seen to be positive instead of negative values. Also, the wake is not captured properly. I am using OpenFOAM 5 as the newer versions consider Boussinesq approximation as an equation of state which am afraid is not a proper way.
Please see below the link to my case file and share your suggestions if you have had any similar experiences.
Can you attach the paper you are trying to validate?
Thanks for the response. Please see below the url for literature.