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为计算潮水闸的引排水量,本文建议一种近似计算方法,可用一潮引排水时间来计算一潮引排水量。将一潮引水时间T_引分为Δt_1、Δt_2、……Δt_n诸时段,使每个时段的过闸落差Δh=ΔH/n(ΔH为有效波高,n为划分的时段数)。q_1、q_2、……q_n为时段平均单宽流量。如图1所示,闸孔单位宽度逐时段的引水量可近似写为:第一时段Δt_1q_1=1/2(0+φ(2g)~(1/2)H_1Δh1/2)Δt_1第二时段Δt_2q_2=1/2φ(2g)~(1/2)(H_1+H_2)Δh~(1/2)Δt_2第n时段Δtnqn=1/2(φ(2g)~(1/2)H_(n-1)Δh~(1/2)+0)Δt_n各时段平均单宽流量的总和即:(?)(?)
In order to calculate the drainage volume of the floodgates, an approximate calculation method is proposed in this paper. The tide of water diversion time T_divided into time periods Δt_1, Δt_2, ... Δt_n such that the overrun time Δh = ΔH / n (ΔH is the effective wave height and n is the number of divided time periods) in each period. q_1, q_2, ... q_n is the average single-width traffic of the period. As shown in FIG. 1, the water diversion interval per unit width of the gate unit can be approximated as: Δt_1q_1 = 1/2 (0 + φ (2g) ~ (1/2) H_1Δh1 / 2) Δt_1 the second time period Δt_2q_2 = 1 / 2φ (2g) ~ (1/2) (H_1 + H_2) Δh ~ (1/2) Δt_2 nth period Δtnqn = ½ (φ (2g) ~ (1/2) H_ (n-1 ) Δh ~ (1/2) +0) Δt_n The sum of the average single-width flow in each time period is: (?) (?)