1. A flat plate is subjected to parallel flow (top and bottom) characterized by

Question

1. A flat plate is subjected to parallel flow (top and bottom) characterized by u? = 5m/s, T? = 10 C. The temperature of the plate is 44 C . The length of the plate , L, is 2m and the width is 1 m. Evaluating the air properties at 300 K and assuming a transition Reynolds number of 5x105, answer the following questions: (a) At what point on the plate, the flow becomes turbulent? (b) Compute the average heat transfer coefficient for the flow (c) What is the convective heat transfer rate from the plate?

Explanation / Answer

Relevant equations ReL = V*L/v h = Nu*k/L 3. The attempt at a solution My question is what should the L be to calculate the Reynold's number and conventive coefficient. Is it 2m or 4m since fluid flows over the top and bottom?

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