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During a strong jump, the value of Froude lies in between________

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in Fluid Mechanics by (118k points)
During a strong jump, the value of Froude lies in between________

(a) 1 to 2.5

(b) Greater than 9

(c) Less than 1

(d) 4.5 to 9

The question was posed to me in semester exam.

Query is from Location of a Hydraulic Jump in section Non Uniform Flow in Channels of Fluid Mechanics

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Correct choice is (b) Greater than 9

Easy explanation: A strong jump is a jump that takes place when the Froude’s number is greater 9. In this jump, there is a large difference in the conjugate depths. They are characterised by different jump actions that result in a high energy dissipation.

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