Water is drained from a large reservoir using two horizontal plastic pipes connected in series. The first pipe is 20 m long and has a 10-cm diameter while the second pipe is 35 m long and has a 4-cm diameter. The water level in the reservoir is 18 m above the centerline of the pipe. Given: Fitting Pipe entrance Pipe exit K values 0.5 0.46 Density of water is 1000 kg/m³, Dynamic viscosity (μ) of the water is 1.14x10-3 Pa·s, Surface roughness of the plastic pipe (ε) = 0 (smooth pipe) Determine a) the flow velocity of water in both pipes; and b) the discharge rate of water from the reservoir. 18 m Water tank 35 m 20 m

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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Water is drained from a large reservoir using two horizontal plastic pipes connected in series.
The first pipe is 20 m long and has a 10-cm diameter while the second pipe is 35 m long and
has a 4-cm diameter. The water level in the reservoir is 18 m above the centerline of the pipe.
Given:
Fitting
Pipe entrance
Pipe exit
K values
0.5
0.46
Density of water is 1000 kg/m³,
Dynamic viscosity (μ) of the water is 1.14x10-3 Pa·s,
Surface roughness of the plastic pipe (ε) = 0 (smooth pipe)
Determine
a) the flow velocity of water in both pipes; and
b) the discharge rate of water from the reservoir.
18 m
Water
tank
35 m
20 m
Transcribed Image Text:Water is drained from a large reservoir using two horizontal plastic pipes connected in series. The first pipe is 20 m long and has a 10-cm diameter while the second pipe is 35 m long and has a 4-cm diameter. The water level in the reservoir is 18 m above the centerline of the pipe. Given: Fitting Pipe entrance Pipe exit K values 0.5 0.46 Density of water is 1000 kg/m³, Dynamic viscosity (μ) of the water is 1.14x10-3 Pa·s, Surface roughness of the plastic pipe (ε) = 0 (smooth pipe) Determine a) the flow velocity of water in both pipes; and b) the discharge rate of water from the reservoir. 18 m Water tank 35 m 20 m
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