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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P PAV3
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Given group P AV3 Pmodel 5 W Vmodel 05 ms Vprototype 4 ms Scale ratio 18 We n...View the full answer
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Related Book For
Engineering Fluid Mechanics
ISBN: 9781118880685
11th Edition
Authors: Donald F. Elger, Barbara A. LeBret, Clayton T. Crowe, John A. Robertson
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