convective Heat transfer coefficient at a reference temperature as boundary condition
I am solving a problem in OpenFoam using BuoyantBoussinesqPisoFoam, in which hot fluid(say A) is flowing in a pipe, which is surrounded by a another fluid(say B). It is a cooling process analysis at a cooler. so i want to give a heat transfer coefficient of surrounded fluid ( B) and its temperature as boundary condition on the wall of the pipe surrounded by a fluid(B).
Please guide me which boundary field i suppose to use.
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