摘要
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 Sanwan hydraulic fish way project in Liaoning Province for an example, in view of hydraulic characteristics of one side vertical slot fish way, model test is used to study the variation rules of main stream curve and flow velocity along flow direction as well as flow velocity variation in position of vertical sloi. The model scale is selected 1 ： 5. Considering three kinds of bottom slopes and typical discharges, and two numbers of depth, the flow velocity is measured with ADV. The results show that the curve o{ main stream is anti-S shapes the main stream velocity variation,is first in- creased and then decreased along the flow directions the flow velocity variation of vertical slot position from the surface to the bottom is in accordance with the first increased and then decreased following with increased trends the maximum flow velocity is nearly the bottom of the vertical slot.
出处
《水电能源科学》
北大核心
2012年第3期81-83,共3页
Water Resources and Power
基金
国家自然科学基金资助项目(40071183)
关键词
鱼道
模型试验
主流曲线
主流速度
竖缝流速
fish way
model test
main stream curve
main ,stream velocity
vertical slot flow velocity
