Air at atmospheric pressure and 200°C flows over a plate with a velocity of 5 m/s. The plate is 15 mm wide and is maintained at a temperature of 120°C. Calculate the thicknesses of hydrodynamic and thermal boundary layers and the local heat transfer coefficient at a distance of 0.5 m from the leading edge. Assume that flow is on one sid the plate. Density = 0.815 kg/m3; 1 = 24.5 × 10 - 6 Ns/ m2; Pr = 0.7, k = 0.0364 W/m K.
Air at atmospheric pressure and 200°C flows over a plate with a velocity of 5 m/s. The plate is 15 mm wide and is maintained at a temperature of 120°C. Calculate the thicknesses of hydrodynamic and thermal boundary layers and the local heat transfer coefficient at a distance of 0.5 m from the leading edge. Assume that flow is on one sid the plate. Density = 0.815 kg/m3; 1 = 24.5 × 10 - 6 Ns/ m2; Pr = 0.7, k = 0.0364 W/m K.
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