Page 136 - ebook fluid mechanics_finalize
P. 136
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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