
Concept explainers
(a)
The downstream Froude number.

Answer to Problem 10.80P
The downstream Froude number is 0.395
Explanation of Solution
Given:
y1 = 0.25m
y2 = 1 m
Concept Used:
Calculation:
Conclusion:
The downstream Froude number is 0.395.
(b)
The flow rate per unit width.

Answer to Problem 10.80P
The flow rate per unit width is 1.2375 m3 /m-s
Explanation of Solution
Given:
y1 = 0.25m
y2 = 1 m
Concept Used:
Calculation:
Conclusion:
The flow rate per unit width is 1.2375 m3 /m-s.
(c)
The critical depth of water.

Answer to Problem 10.80P
The critical depth of water is 0.538 m
Explanation of Solution
Given:
y1 = 0.25m
y2 = 1 m
Concept Used:
Calculation:
Conclusion:
The critical depth of water is 0.538 m.
(d)
The percentage of heat dissipation.

Answer to Problem 10.80P
The heat dissipation is 39%
Explanation of Solution
Given:
y1 = 0.25m
y2 = 1 m
Concept Used:
Calculation:
Conclusion:
The heat dissipation is 39%.
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Chapter 10 Solutions
Fluid Mechanics
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