Problem 1. A smooth plate with length L = 3.0 m and width b = 0.90 m moves through still air at STP at a velocity of U = 4.5 m/s that is aligned with L. Calculate the following for a boundary layer that stays laminar and for one that trips to turbulent at the leading edge: (a) boundary layer disturbance thickness, 8, at æ = 0.5, 1.0, 1.5, 2.0, 2.5, and 3.0 m from the leading edge of the plate, (b) wall shear stress, Tw, at those æ- locations, and (c) friction drag, Fp,f, on one side of plate. (d) Calculate percent decrease in drag for laminar versus turbulent boundary layer.
Problem 1. A smooth plate with length L = 3.0 m and width b = 0.90 m moves through still air at STP at a velocity of U = 4.5 m/s that is aligned with L. Calculate the following for a boundary layer that stays laminar and for one that trips to turbulent at the leading edge: (a) boundary layer disturbance thickness, 8, at æ = 0.5, 1.0, 1.5, 2.0, 2.5, and 3.0 m from the leading edge of the plate, (b) wall shear stress, Tw, at those æ- locations, and (c) friction drag, Fp,f, on one side of plate. (d) Calculate percent decrease in drag for laminar versus turbulent boundary layer.
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Transcribed Image Text:Problem 1. A smooth plate with length L = 3.0 m and width b = 0.90 m moves through still air at STP at a velocity of
U = 4.5 m/s that is aligned with L. Calculate the following for a boundary layer that stays laminar and for one that
trips to turbulent at the leading edge: (a) boundary layer disturbance thickness, 8, at
x = 0.5, 1.0, 1.5, 2.0, 2.5, and 3.0 m from the leading edge of the plate, (b) wall shear stress, Tw, at those æ-
locations, and (c) friction drag, Fp.f, on one side of plate. (d) Calculate percent decrease in drag for laminar versus
turbulent boundary layer.
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