A square flat plate with sides of length L = 2m and a negligible thickness (out of the page) is held stationary in a stream of air that is moving steadily at standard conditions past the plate with a speed U = 10 m/s that is uniform except for the boundary layers. Assume the plate is oriented so that only friction drag is important. Determine the drag coefficient for this plate.

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8th Edition
ISBN:9781305387102
Author:Kreith, Frank; Manglik, Raj M.
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Chapter5: Analysis Of Convection Heat Transfer
Section: Chapter Questions
Problem 5.24P: Engine oil at 100C flows over and parallel to a flat surface at a velocity of 3 m/s. Calculate the...
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A square flat plate with sides of length L 2m and a negligible
thickness (out of the page) is held stationary in a stream of air that
is moving steadily at standard conditions past the plate with a speed
U = 10 m/s that is uniform except for the boundary layers. Assume the
plate is oriented so that only friction drag is important. Determine the
drag coefficient for this plate.
Answer: CD, ≈ 0.003
=
U
L-
Transcribed Image Text:A square flat plate with sides of length L 2m and a negligible thickness (out of the page) is held stationary in a stream of air that is moving steadily at standard conditions past the plate with a speed U = 10 m/s that is uniform except for the boundary layers. Assume the plate is oriented so that only friction drag is important. Determine the drag coefficient for this plate. Answer: CD, ≈ 0.003 = U L-
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