Air at 1 atm and 20°C is flowing over the top surface of a 0.2 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 0.3 N, determine the surface temperature of the metal foil. Evaluate the fluid properties at 100°C.

Air at 1 atm and 20°C is flowing over the top surface of a 0.2 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 0.3 N, determine the surface temperature of the metal foil. Evaluate the fluid properties at 100°C.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Question

Air at 1 atm and 20°C is flowing over the top surface of a 0.2 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 0.3 N, determine the surface temperature of
the metal foil Evaluate the fluid properties at 100°C.
Air, T 20°C
Metal foil
4eler = 6100 W/m?

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