Air at a pressure of 1 atm and a temperature of 50°C is inparallel flow over the top surface of a flat plate that is heatedto a uniform temperature of 100°C. The plate has a length of 0.24 m(in the flow direction) and a width of 0.12 m. The Reynolds numberbased on the plate length is 30,000. (a) What is the rate of heattransfer from the plate to the air? (b) If the free stream velocityof the air is doubled and the pressure is increased to 10 atm, whatis the rate of heat transfer? Assume the critical Reynolds numberis 5 x 105.
Determine the rate of heat transfer for (a), in W.
q a =Â Â
Determine the rate of heat transfer for (b), in W.
q b =Â Â
