The surface arca of a reservoir at spillway level is 100ha. The overflow from the reservoir passes over a weir 10 m long which has a discharge/head relationship of: Q-1.8LHS Where: Q is the discharge in m/s H is the head in m L is the weir length in m
The surface arca of a reservoir at spillway level is 100ha. The overflow from the reservoir passes over a weir 10 m long which has a discharge/head relationship of: Q-1.8LHS Where: Q is the discharge in m/s H is the head in m L is the weir length in m
Chapter2: Loads On Structures
Section: Chapter Questions
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Transcribed Image Text:The surface area of a reservoir at spillway level is 100ha. The overflow from the reservoir passes over
a weir 10 m long which has a discharge/head relationship of:
Q=1.8LHS
Where: Q is the discharge in m/s
H is the head in m
L is the weir length in m
Find the time for the head to fall from a height of 2 m above the crest to 0.5 m when there is an inflow
of 1.5 m/s. The surface area of the reservoir increases by 1 ha per metre rise in water level above the
crest level.
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