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• • • <br />Full Pipe Flow Under Gravity Worksheet <br />eject: CC&V Underdrain Pipe -Phase 5 <br />te: February 2008 <br />Wittwer <br />eject #:1125 Q = 1.49 ~ % S!2 <br />n <br />(ft/ft): 0.005 <br />ngs "n": 0.015 <br />Pfpe Flow <br />Q = gpm <br />n = Mannings Coeff. <br />A =Flow Area <br />R = Hyd. Radius <br />S=Pi eSlo e <br />1 <br />SMITH WIILIAMS CONSULTANTS, INC. <br />u <i <br />Inside Diameter inches Area Ft" 2 d. Radius tt. Q m Q cis Q Us Q cros meter/hr' <br />4.00 0.09 0.08 52 0.117 3.311 0.00 11.9 <br />5.00 0.14 0.10 95 0.212 6.003 . 0.01 21.6 <br />6.00 0.20 0.13 155 0.345 9.762 0.01 35.1 <br />7.00 0.27 0.15 233 0.520 14.725 0.01 53.0 <br />8.00 0.35 0.17 333 0.743 21.023 0.02 75.7 <br />9.00 0.44 0.19 456 1.017 28.780 0.03 103.6 <br />10.00 0.55 0.21 604 .1.346 38.117 0.04 137.2 <br />11.00 0.66 0.23 779 1.736 49.147 0.05 176.9 <br />12.00 0.79 0.25 983 2.189 61.982 0.06 223.1 <br />13.00 0.92 0.27 1,216 2.710 76.730 0.08 276.2 <br />14.00 1.07 0.29 1,482 3.302 93.495 0.09 336.6 <br />