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Abstract
Vertical buoyant convection in stably stratified fluids is revisited. The limitation of boundary layer analyses for such flows is quantified. This is accomplished by comparing the results of the present boundary layer numerical study with the published experimental measurements, and full numerical simulations. It is shown that boundary layer analysis underpredicts the heat transfer rates. This is explained with reference to the flow and thermal fields. The boundary layer results are shown to be inadequate for such characteristics as flow reversal and temperature defects. The underlying physical mechanisms are discussed.
Notes
Address correspondence to D. Angirasa, Department of Mechanical Engineering, Texas A & M University, College Station, TX 77843-3123, USA.