7- A 1:20 scale model of a propeller on a ship is to be tested in a water channel. What should be rotating speed of the model if the rotational speed of the prototype propeller is 2000 rpm, and if: (a) the Froude number governs the model-prototype similarity, or if (b) Reynolds number governs the similarity.

Structural Analysis
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ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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7- A 1:20 scale model of a propeller on a ship is to be tested in a water channel. What should be
rotating speed of the model if the rotational speed of the prototype propeller is 2000 rpm, and
if:
(a) the Froude number governs the model-prototype similarity, or if
(b) Reynolds number governs the similarity.
Transcribed Image Text:7- A 1:20 scale model of a propeller on a ship is to be tested in a water channel. What should be rotating speed of the model if the rotational speed of the prototype propeller is 2000 rpm, and if: (a) the Froude number governs the model-prototype similarity, or if (b) Reynolds number governs the similarity.
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