Engineering, 21.03.2020 04:30 slimt69561
A useful approximation for the x component of velocity in an incompressible laminar boundary layer is a parabolic variation from u -0 at the surface (y 0) to the freestream velocity, U, at the edge of the boundary layer ( y = δ ). The equation for the profile is u/U-2(y/5) (y/5)2, where-cz1/2 and c is a constant.
Find the simplest expression for the normalized y component of the velocity (v/U) in terms ofx, δ, and y.
Evaluate the normalized y velocity (v/U) at the location where y/5-1, δ = 5 mm, and x = 0.5 m.
Answers: 1
Engineering, 04.07.2019 18:10, DestyHilBan1183
Adouble-strand no. 60 roller chain is used to transmit power between a 13-tooth driving sprocket rotating at 300 rev/min and a 52-tooth driven sprocket. a) what is the allowable horsepower of this drive? b) estimate the center-to-center distance if the chain length is 82 pitches. c) estimate the torque and bending force on the driving shaft by the chain if the actual horsepower transmitted is 30 percent less than the corrected (allowable) power.
Answers: 3
Engineering, 04.07.2019 18:20, jessie8022
Apiston-cylinder device contains 0.1 m3 of liquid water and 0.9 m3 of water vapor in equilibrium at 800 kpa. heat is transferred at constant pressure until the temperature of water reaches 350 °c. determine (a) the quality of water at the initial state (b) the work associated with this process, (c) the heat associated with this process.
Answers: 2
A useful approximation for the x component of velocity in an incompressible laminar boundary layer i...
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