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460 Chapter 13 Hydraulics of Sewer Systems

2,000
0.0002
0.7
0.0003
1,500
0.0004
0.8
0.0005
1,350
0.0006
0.9
0.0007
1,200
1,000
0.0008
0.0009
900
1,050 0.001
1.0
800
900
700
0.002
600
750
0.003
500
675
0.004
600
400
0.005
1.5
0.006
525
0.007
300 450 0.008
Discharge, Q in L/s 200 Diameter of Pipe, D in mm 375 Slope, S in m/m 0.02 Velocity, V in m/s 2
0.009
0.01
300
0.03
0.04
250
0.05
0.06
0.07
100
0.08
200 3
90 0.09
0.1
80
70
150
60
0.2
4
50
0.3
0.4
40
0.5
100
0.6
5
0.7
30 0.8
0.9
1.0
6
Figure 13.1b Nomogram for Solution of Manning’s Equation for Pipes Flowing Full (Metric Units). n 0.013