Concept explainers
The velocity before the jump.
The velocity after the jump.
The
Answer to Problem 128P
The velocity before the jump is
The velocity after the jump is
The mechanical power dissipated is
Explanation of Solution
Given information:
The flow depth before the jump is
Write the expression for flow depth.
Here, Froude number is
Write the expression for Froude number.
Here, acceleration due to gravity is
Write the expression for conservation of mass.
Here, velocity after jump is
Write the expression for volume flow rate.
Write the expression for head loss during the jump.
Write the expression for mass flow rate.
Here, density of water is
Write the expression for energy dissipated.
Calculation:
Substitute
Substitute
Substitute
Substitute
Substitute
Refer to table "Liquid water at
Substitute
Substitute
Conclusion:
The velocity before the jump is
The velocity after the jump is
The mechanical power dissipated is
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Chapter 13 Solutions
Fluid Mechanics: Fundamentals and Applications
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