TURBULENT MIXED CONVECTION ALONG A VERTICAL PLATE.

Information on heat transfer characteristics of mixed convection in fully developed turbulent boundary layer flow is currently lacking in the literature. In this paper mixed convection in turbulent boundary layer flow along an isothermal vertical flat plate is analyzed for the entire mixed convection regime, ranging from pure forced convection to pure free convection, by employing a modified Van Driest mixing-length model for the turbulent diffusivities that account for the buoyancy effect. This approach is a simple attempt to treat the turbulent mixed convection problem, but it does provide good numerical results, particularly for the forced convection dominated regime.