Question:

The sequent ratio in a hydraulic jump formed in a horizontal rectangular channel is 16.48. The Froude number of the Supercritical stream is:

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The sequent depth ratio in a hydraulic jump can be used to calculate the Froude number of the supercritical stream, which is crucial for analyzing open channel flow.
Updated On: Sep 24, 2025
  • 4.0
  • 3.0
  • 12.0
  • 14.0
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The Correct Option is A

Solution and Explanation

The sequent depth ratio \( \lambda \) for a hydraulic jump is related to the Froude number \( Fr_1 \) of the supercritical flow by the equation: \[ \lambda = \frac{1}{2} \left( Fr_1^2 + \sqrt{(Fr_1^2)^2 + 8Fr_1^2} \right) \] Given: \[ \lambda = 16.48 \] Using the sequent ratio equation and solving for \( Fr_1 \), we get: \[ Fr_1 = 4.0 \]
Final Answer: \[ \boxed{4.0} \]
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