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Heat transfer in a laminar wall jet over a curved surface
Authors:Rama Subba Reddy Gorla
Institution:(1) Dept. of Mech. Eng., Gannon College, 16501 Erie, Pennsylvania, U.S.A.
Abstract:The steady state heat transfer characteristics of the wall jet over a curved surface are obtained for constant wall temperature and constant wall heat flux boundary conditions. Both concave and convex curvatures have been considered. Numerical results for the temperature distribution are obtained and solutions for the wall values of the temperature functions have been tabulated for Prandtl number ranging from 0.01 to 100 while the curvature parameter was varied from –0.03 to 0.07.Nomenclature f velocity profile function - h heat transfer coefficient - K thermal conductivity - Nu Nusselt number - Pr Prandtl number - q w heat flux at the wall - Re Reynolds number - R 0 surface radius of curvature - T temperature - U characteristic velocity - u velocity component in x direction - v velocity component in y direction - x distance parallel to the surface - y distance normal to the surface - agr curvature parameter 
$$\left( {\frac{{UR_0^4 }}{{vx^3 }}} \right)^{\frac{1}{4}} $$
- eegr dimensionless coordinate - theta dimensionless temperature - mgr dynamic viscosity - ngr kinematic viscosity - rgr fluid density - tau shear stress - w conditions at the wall - infin conditions far away from the surface
Keywords:
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