As a piping designer, you were tasked to determine the required water-surface elevation between the reservoir. A 2000 mm diameter,1800 m long concrete pipe with a surface roughness ∈ = 2 mm will be used to carry water between the two reservoirs at 8000 L/s. Assume kinematic viscosity to be ?ѣ = 1.32(10)−6?њ2/?Ѡ and consider minor loses at entrance and exit. NB: Only the frictional factor read from Moody’s diagram will be acceptable. Friction factor f0.100.090.080.070.060.050.040.030.0250.020.0150.010.0090.008Laminar CriticalFlowHLAL2E11Zone Transition103←2 3 4 56 8 104+-Zonex 10³.Complete turbulence, rough pipes;Smooth pipes2 34 56 8105x 104.+2 3 4 5 6 8 106x 105.+Reynolds number Re=VDV2 3 4 56 8107x 105.0.050.040.030.020.0150.01 10.0080.0060.0040.0020.0010.00080.00060.00040.00020.00010.000,05Relative roughness0.000,013-456 8108= 0.000,001-=0.000,005

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Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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As a piping designer, you were tasked to determine the required water-surface elevation between the reservoir. A 2000 mm diameter,1800 m long concrete pipe with a surface roughness ∈ = 2 mm will be used to carry water between the two reservoirs at 8000 L/s. Assume kinematic viscosity to be ?ѣ = 1.32(10)−6?њ2/?Ѡ and consider minor loses at entrance and exit. NB: Only the frictional factor read from Moody’s diagram will be acceptable.

Friction factor f
0.10
0.09
0.08
0.07
0.06
0.05
0.04
0.03
0.025
0.02
0.015
0.01
0.009
0.008
Laminar Critical
Flow
H
LAL
2
E
11
Zone Transition
103
←
2 3 4 56 8 104
+
-Zone
x 10³.
Complete turbulence, rough pipes;
Smooth pipes
2 34 56 8105
x 104.
+
2 3 4 5 6 8 106
x 105.
+
Reynolds number Re=
VD
V
2 3 4 56 8107
x 105.
0.05
0.04
0.03
0.02
0.015
0.01 1
0.008
0.006
0.004
0.002
0.001
0.0008
0.0006
0.0004
0.0002
0.0001
0.000,05
Relative roughness
0.000,01
3-456 8108
= 0.000,001
-=0.000,005

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