异侧竖缝式鱼道水力特性试验研究

Experimental study on hydraulic characteristics of vertical slot fishway from side to side

对异侧竖缝式鱼道的水力特性进行了试验研究.在试验室的水槽中,通过三维超声波流速仪(ADV)测得鱼道池室中的流速数据,对流量为5.61L/s和9.31L/s池室中不同水深时的流速场、紊动能和雷诺剪切应力等水力参数进行了初步分析研究.结果表明:鱼道池室中流速沿垂向的分量很小,几乎为零;同等流量下随着水深的增加,流速有减小的趋势,而紊动能和雷诺剪切应力有增大的趋势;而随着流量的增加,池室中相同部位的流速、紊动能和雷诺剪切应力也会相应的增大.

The hydraulic characteristics of vertical slot fishway from side to side were studied.In the flume the 3-D acoustic Doppler velocimeter （ADV） was employed to measure the velocity data in the fishway pool.Some hydraulic parameters such as flow velocity field,turbulent kinetic energy and Reynolds stress in the fishway pool with the flow discharges of 5.61 L/s and 9.31 L/s at different depths were preliminarily analyzed.The results show that the vertical velocity component in the fishway pool is very small and almost zero.Under the same flow discharge,the flow velocity has a decreasing tendency with the increase of the water depth,while the turbulent kinetic energy and the Reynolds stress have an increasing tendency.With the increase of the flow discharge,the flow velocity,the turbulent kinetic energy and the Reynolds stress at the same parts of the fishway pool correspondingly increase.