## A NUMERICAL STUDY OF NATURAL CONVECTIVE HEAT TRANSFER FROM AN INCLINED ISOTHERMAL PLATE WITH A "SINUSOIDALLY WAVY" SURFACE
## 要約Natural convective heat transfer from a wide isothermal plate which has a "wavy" surface, i.e. a surface which periodically rises and falls, has been numerically studied. The surface waves run in the horizontal direction, i.e., are normal to the direction of flow over the surface. Attention has been restricted to the case where the waves have a sinusoidal cross-sectional shape. The plate is, in general, inclined to the vertical with consideration being given both to inclination angles at which the heated plate is facing upwards and to inclination angles at which the heated plate is facing downwards. The range of Rayleigh numbers considered extends from values that for a non-wavy vertical plate would be associated with laminar flow to values that would be associated with fully turbulent flow. The flow has been assumed to be steady and fluid properties have been assumed constant except for the density change with temperature that gives rise to the buoyancy forces, this being treated by means of the Boussinesq approximation. The Reynolds averaged governing equations in conjunction with a standard |

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