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1. |
Ambient air at 20 degree Celsius flows past a flat plate with a sharp leading edge at 3 m/s. The plate is heated uniformly throughout its entire length and is maintained at a surface temperature of 40 degree Celsius. Calculate the thickness of the thermal boundary layer. Assume that transition occurs at a critical Reynolds number of 500000 |
A. | 19.23 mm |
B. | 18.23 mm |
C. | 17.23 mm |
D. | 16.23 mm |
Answer» B. 18.23 mm | |