Power generated by a propeller operating in the air (P); it depends on the mass density of the air (p), its viscosity (u), the speed of sound (acoustic speed : c), the speed of forward motion (V) and angular velocity of propeller (w). Accordingly, by dimensional analysis, obtain the law on which power depends.

Power generated by a propeller operating in the air (P); it depends on the mass density of the air (p), its viscosity (u), the speed of sound (acoustic speed : c), the speed of forward motion (V) and angular velocity of propeller (w). Accordingly, by dimensional analysis, obtain the law on which power depends.

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter5: Analysis Of Convection Heat Transfer

Section: Chapter Questions

Problem 5.9P: When a sphere falls freely through a homogeneous fluid, it reaches a terminal velocity at which the...

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When a sphere falls freely through a homogeneous fluid, it reaches a terminal velocity at which the weight of the sphere is balanced by the buoyant force and the frictional resistance of the fluid. Make a dimensional analysis of this problem and indicate how experimental data for this problem could be correlated. Neglect compressibility effects and the influence of surface roughness.
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