Appendix A: Calculations For Partially Filled Pipes - Global Water FP111 User Manual

Appendix A: Calculations for Partially Filled Round Pipes
B C B
0.01 0.0013 0.51
0.02 0.0037 0.52
0.03 0.0069 0.53
0.04 0.0105 0.54
0.05 0.0147 0.55
0.06 0.0192 0.56
0.07 0.0242 0.57
0.08 0.0294 0.58
0.09 0.0350 0.59
0.10 0.0409 0.60
0.11 0.0470 0.61
0.12 0.0534 0.62
0.13 0.0600 0.63
0.14 0.0668 0.64
0.15 0.0739 0.65
0.16 0.0811 0.66
0.17 0.0885 0.67
0.18 0.0961 0.68
0.19 0.1039 0.69
0.20 0.1118 0.70
0.21 0.1199 0.71
0.22 0.1281 0.72
0.23 0.1365 0.73
0.24 0.1449 0.74
0.25 0.1535 0.75
0.26 0.1623 0.76
0.27 0.1711 0.77
0.28 0.1800 0.78
0.29 0.1890 0.79
0.30 0.1982 0.80
0.31 0.2074 0.81
0.32 0.2167 0.82
0.33 0.2266 0.83
0.34 0.2355 0.84
0.35 0.2450 0.85
0.36 0.2546 0.86
0.37 0.2644 0.87
0.38 0.2743 0.88
0.39 0.2836 0.89
0.40 0.2934 0.90
0.41 0.3032 0.91
0.42 0.3130 0.92
0.43 0.3229 0.93
0.44 0.3328 0.94
0.45 0.3428 0.95
0.46 0.3527 0.96
0.47 0.3627 0.97
0.48 0.3727 0.98
0.49 0.3827 0.99
0.50 0.3927 1.00
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C
0.4027 H= Height of water; D= Diameter of pipe
(in feet)
0.4127
0.4227
0.4327
0.4426 H/D = Column B
0.4526
0.4625 Read Column C adjacent to your pipe's B
0.4723
0.4822 C x D2 = Filled area, A (sq.ft. )
0.4920
0.5018 A x Average Velocity = Volumetric flow
0.5115 (CFS)
0.5212
0.5308 CFS x 448.83 = Gallons/minute (GPM)
0.5404
0.5499 GPM x 1440 = Gallons/day (GPD)
0.5594
0.5687
0.5780
0.5872
0.5964
0.6054
0.6143
0.6231
0.6318
0.6404
0.6489
0.6573
0.6655
0.6736
0.6815
0.6893
0.6969
0.7043
0.7115
0.7186
0.7254
0.7320
0.7384
0.7445
0.7504
0.7560
0.7612
0.7662
0.7707
0.7749
0.7785
0.7816
0.7841
0.7854
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