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BlueCB
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Homework Statement
Consider the flow of air over an aerofoil.
The critical Reynolds number marking the transition from laminar to turbulent flow is 6 x 10^5, the dynamic viscosity is 2.0 x 10^-5 Ns/m^2, the density of air is 1.100 kg/m^3 and the aircraft velocity is 180 m/s.
What is the length of the region of laminar flow?
Homework Equations
Ellaminar = 0.06 Re
where
Re = Reynolds Number
The Attempt at a Solution
Re = Ro x u x X / μ
X = 0.06 m = 6 cm