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CSB_aood = 0.0277[(4.762)(25/841)]a125 x (0.481/841)a1(500/8.66)a5 = 0.0947 m/s Alternatively, applying the Fair correlation:

The flow parameter Flg = 0.021 [Eq. (14-89)]. From Fig. 14-31, Csbf = 0.095 m/s. Then, based on the net area,

CSB = 0.095(25/20)02 = 0.0993 m/s about 5 percent higher than the answer obtained from Kister and Haas. For the design condition, the C-factor based on the net area is

25,500

3600(0.481X4.66)

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