Abstract
Flow and heat transfer characteristics of laminar mixed convection in radially rotating semiporous channel with a uniform transpiration and a constant wall temperature gradient are examined. The buoyancy effect is taken into account through the consideration of the density variation in the centrifugal force term. A similarity solution is sought; and then the effects of rotation, transpiration and wall heating on the velocity and temperature fields, the skin friction, the pressure drop and the heat transfer rate are investigated by the solution of the two coupled quasilinear equations. Flow-reversal phenomena can be caused by the transpiration and buoyancy effects. Two modes of flow reversal and the related critical conditions are studied in detail to explore the mechanism of the mixed convection.
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