Abstract
The heat transfer characteristics of a laminar, incompressible, two-dimensional wall jet with constant physical properties are treated in some detail. Exact solutions have been found when the flow is self-preserving in shape, and the wall temperature is variable and of the form Σ A nx n . These solutions are shown to reduce to the special cases of constant temperature wall ( n = 0), and constant heat flux ( n = 3 4 ). Temperature profiles and heat flux rates have been evaluated for a variety of Prandtl numbers. The laminar wall jet has also been examined by means of the momentum integral technique and the results are compared to the exact solutions for several assumed profiles. Further, a heat transfer expression is obtained for variable starting length of the heated section if the temperature of the wall is constant.
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