A long-throated flume is installed in a trapezoidal channel using design B from Table 14.5. Compute the discharge for a head of 0.65 ft.

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TABLE 14.5 Long-throated flume data Design A Design B Design C Rectangular channels: Q = b.K,(H + K2Y" be 0.500ft 1.000 ft be 1.500 ft 7. 0.750 ft 1.000 ft 2.250 ft P1 0.125 ft 0.250 ft P1 0.500 ft K1 3.996 K 3.696 3.375 K2 0.000 0.004 K2 0.011 1.612 1.617 1.625 Hin 0.057 ft Hmin 0.082 ft Hmin 0.148 ft Hmax 0.462 ft Hena 0.701 ft Hmax 1.500 ft Qmin 0.020 ft/s Qmin 0.070 fts Qrin 0.255 f/s Qmax 0.575 fA/s Qmax 2.100 ft?s Qrax 9.900 ft/s Trapezoidal channels: Q = K(H + K2y 1.000 ft 1.000 ft bi 2.000 ft b. 2.000 ft 4.000 ft be 5.000 ft 0.750 ft 1.000 ft 1.000 ft P1 0.500 ft 1.500 ft P1 1.500 ft. 9.290 14.510 16.180 K2 0.030 K2 0.053 K2 0.035 1.878 1.855 1.784 Hrin 0.400 ft Hmin 0.579 ft Hmin 0.580 ft. Hmas 0.893 ft Hmiar 0.808 ft Hmax 1.456 ft Qmin 1.900 ft/s Qain 6.200 ft/s Qrin 6.800 t/s Qmar 8.000 ts Qnax 11.000 fts Qrax 33.000 ft's Circular channels: Q = D2.5K, (H/D + K2)" D 1.000 ft D 2.000 ft D 3.000 ft b. 0.866 ft 1.834 ft be 2.940 ft 0.600 ft 1.100 ft 1.350 ft 0.750 ft 1.800 ft 3.600 ft 1.125 ft 7. 2.100 ft 2.700 ft P1 0.250 ft 0.600 ft P1 1.200 ft 3.970 3.780 K1 3.507 K2 0.004 0.000 K2 0.000 1.689 1.625 1.573 D Hmin 0.069 ft Hmin 0.140 ft Hmin 0.180 ft Hmax 0.599 ft 1.102 ft Hmax 1.343 ft P1 Qmin 0.048 ft/s 0.283 fts Qmin 0.655 f/s Qmax 1.689 ft'/s Qnar 8.112 fts 15.448 ft's