# Air is flowing in parallel over the upper surface of a flat plate with a length of 4 m. The

## Question:

Air is flowing in parallel over the upper surface of a flat plate with a length of 4 m. The first half of the plate length, from the leading edge, has a constant surface temperature of 50°C. The second half of the plate length is subjected to a uniform heat flux of 86 W/m^{2}. The air has a free stream velocity and temperature of 2 m/s and 10°C, respectively. Determine the local convection heat transfer coefficients at 1 m and 3 m from the leading edge. Evaluate the air properties at a film temperature of 30°C. Is the film temperature T_{f} = 30°C applicable at x = 3 m?

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**Related Book For**

## Heat And Mass Transfer Fundamentals And Applications

**ISBN:** 9780073398181

5th Edition

**Authors:** Yunus Cengel, Afshin Ghajar

**Question Details**

Chapter #

**7**- EXTERNAL FORCED CONVECTIONSection: Problems

Problem: 57

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