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TOP VIEW S a = area b |c(y) = quadratic y

TOP VIEW S a = area b |c(y) = quadratic y

Elements Of Electromagnetics
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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A thin wing with a parabolic chord distribution is flying at speed U∞ and zero angle of attack, as
shown below. The fluid has density ρ and viscosity μ. Assume that the flow starts laminar at the
leading edge but then transitions to tubulent at xcrit = 0.25a.

a) Sketch the regions of laminar and turbulent flow over the wing. Calculate and label relevant
distances.
b) Determine the drag force, D, and the drag coefficient, CD ≡ D/((1/2) ρU2∞S), where S is the
planform area of the wing. Express your drag coefficient answer in terms of the Reynolds
number based on a, Rea ≡ (U∞a)/nu.

TOP VIEW S a = area b |c(y) = quadratic y
Transcribed Image Text:TOP VIEW S a = area b |c(y) = quadratic y
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