15.1.6 - Surface Water Wave Speed
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Practice Questions
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What does the Froude number compare?
💡 Hint: Think about the forces involved in fluid mechanics.
What is the formula for wave speed in open channels?
💡 Hint: Recall that g is acceleration due to gravity and y represents flow depth.
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Interactive Quizzes
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What happens to wave speed when flow depth increases?
💡 Hint: Think about how gravity and depth interact.
True or False: In subcritical flow, disturbances can propagate upstream.
💡 Hint: What does the Froude number indicate about these flows?
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Challenge Problems
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Consider a canal where the flow depth is 2 meters. Calculate the wave speed and explain how changes in flow depth would affect it.
💡 Hint: Think about how the value of y changes the wave speed.
Design a scenario where the Froude number is equal to 1. What happens to disturbances in this flow state?
💡 Hint: Reference the balance of forces in critical flow.
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