Question
6-98 Air at 1 atm and 20°C is flowing over the top surface of a o.2-m x 0.5-m-thin metal foil.The air stream velocity is 100 m/s and the metal foil is heated electrically with a uniform heat flux of 6100 W/m2. If the friction force on the metal foil surface is o.3 N, determine the surface temperature of the metal foil
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