The top surface of a heated compartment consists of very smooth (A) and highly roughened (B)...

The top surface of a heated compartment consists of very smooth (A) and highly roughened (B) portions, and the surface is placed in an atmospheric airstream.

Given Ts= 100°C, ∞T∞= 20°C, ∞u∞= 26 m/s, and L= 0.5 m, calculate the value of the average heat transfer coefficient, in W/m²·K, for the plate when half consists of a very smooth portion (A) and the other half consists of a highly roughened portion (B), as shown in the diagram. Assume the critical Reynolds number is 5 x 10⁵.

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genius_generous answered 2 years ago

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