In a study of the power required to overcome drag, an engineer is using a -group given

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In a study of the power required to overcome drag, an engineer is using a π-group given byWhere P is the power lost, ρ is the fluid density, A is area, and V is the fluid velocity. In laboratory tests with a one-eighth-scale model, the power lost was measured as 5 W when the air velocity was 0.5 m/s. Calculate the power lost in the prototype (kW) when the air velocity is 4 m/s. Temperature is the same in both cases.

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Engineering Fluid Mechanics

ISBN: 9781118880685

11th Edition

Authors: Donald F. Elger, Barbara A. LeBret, Clayton T. Crowe, John A. Robertson

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