Page 136 - FLUID MECHANICS EBOOK FINAL (2)

FLUID MECHANICS

Exercise

1. According to the figure below, list out the losses of head which occur, giving an

expression for each.

2. Water is discharged from a reservoir into the atmosphere through a pipe 80 m long.

There is a sharp entrance to the pipe and the diameter is 250 mm for the first 50 m.

The outlet is 35 m below the surface level in the reservoir. The pipe then enlarges
suddenly to 450 mm in diameter for the reminder of its length. Take f = 0.004 for both

pipes. Calculate the discharge.

3. Two reservoirs have a difference in level of 9 m and are connected by a pipe line,

which is 38 mm in diameter for the first 13 m and 23 mm for the remaining 6 m.
Consider f = 0.01 for both pipes and CC = 0.66. Calculate the discharge.

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