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4) Air at 101 kPa and 360 K flows at 15 m/s over a flat plate...

4) Air at 101 kPa and 360 K flows at 15 m/s over a flat plate maintained at 300 K Assume that the transition Reynolds number is 5x10 (0.332R 12Pr1/3 Re < 5 x 105 0.029Repr0:43 5 x 105 < Re <3 x 107 Assume that k-0.03 W/( mK), 20x10* m?ls, Pr-0.7.p=1.16 kg/m a) If the plate is 2 m long, sketch the local heat transfer coefficient over the plate. Specify the functional form of h with respect tox b) For the 2 m long plate, sketch the local wall shear stress over the plate. c) For a case where the plate length is variable, sketch the total heat transfer rate per unit width to the plate as a function of plate length. Specify the approximate functional dependence of Q' with respect to plate length d) Calculate the heat total heat transfer rate per unit width to the plate for a 1.0 m long plate e) For a laminar boundary layer, using a scaling perspective, how does Nu, vary with 8x)? 1) Is this scaling valid for a turbulent boundary layer? Answer yes or no. h(x)
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