Airstream at 1 atm flows, with a velocity of 15 m/s, in parallel over a 3-m-long flat plate where there is an unheated starting length of 1 m. The airstream has a temperature of 20°C and the heated section of the flat plate is maintained at a constant temperature of 80°C. Determine (a) the local convection heat transfer coefficient at the trailing edge and (b) the average convection heat transfer coefficient for the heated section.

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Chapter7: Forced Convection Inside Tubes And Ducts
Section: Chapter Questions
Problem 7.38P
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Airstream at 1 atm flows, with a velocity of 15 m/s,
in parallel over a 3-m-long flat plate where there is an
unheated starting length of 1 m. The airstream has a temperature
of 20°C and the heated section of the flat plate is maintained
at a constant temperature of 80°C. Determine (a) the
local convection heat transfer coefficient at the trailing edge
and (b) the average convection heat transfer coefficient for
the heated section.

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