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以辽宁省三湾水利枢纽鱼道工程为例,针对同侧竖缝式鱼道水力特性,采用模型试验研究了同侧竖缝式鱼道的主流曲线、主流速度沿程变化规律及竖缝位置流速变化规律,鱼道模型的比尺按1∶5设计,考虑3种底坡、3种典型流量,选取2个水深,采用声学多普勒流速仪(ADV)测量流速。结果表明,同侧竖缝式鱼道主流曲线呈反S型,主流速度沿程变化规律为先增大再减小,竖缝位置的流速从水面至底部变化规律呈先增大再减小再增大的变化趋势,最大流速靠近竖缝底部。
Taking the waterway project of Sanwan Multipurpose Dam in Liaoning Province as an example, aiming at the hydraulic characteristics of the same-side vertical slotted fish-way, the main curve of the same-side vertical slotted fish-way, the variation of the main velocity and the position of the vertical slot The variation of flow rate and scale of fish model were designed according to 1: 5. Three kinds of bottom slope and three typical flow rates were selected. Two water depths were selected and the flow velocity was measured by acoustic Doppler velocity meter (ADV). The results show that the main curve of vertical slits in the same side is in the shape of S, and the variation of the main velocity increases and then decreases at the same time. The variation of vertical velocity at the position of the slits increases first and then decreases again Increasing the trend of change, the maximum velocity near the bottom of the vertical seam.