Concept explainers
Water at
The discharge rate of water from reservoir.
Answer to Problem 73P
The discharge rate of water from reservoir is
Explanation of Solution
Given information:
Reservoir is drained at
Write the expression of datum head.
Here, kinetic energy correction factor at point 2 is
Write the expression of total head loss.
Here, the major head loss is
Write the expression for major head loss.
Here, the friction factor is
Write the expression of minor head loss.
Here, the friction factor is
Substitute
Write the expression for discharge through the pipe.
Here, the area of flow of fluid is
Write the expression of area of flow of fluid from pipe 1.
Here, the diameter of pipe 1 is
Write the expression of area of flow of fluid from pipe 2.
Here, the diameter of pipe 2 is
Substitute
Write the expression of continuity equation.
Here, the flow area of pipe
Substitute
Write the expression of squire of ratio of diameter of pipe.
Here, the diameter of pipe 2 is
Calculation:
Substitute
Substitute,
Substitute
Refer Table 8-4 "Loss coefficient of
Refer Table 8-2 "Equivalence roughness values for new commercial pipe" to find the roughness value as
Substitute,
Substitute
Conclusion:
The discharge rate of water from reservoir is
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Chapter 8 Solutions
Fluid Mechanics: Fundamentals and Applications
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