重庆石梁扣水电站溢洪道弯曲段反超高方案优化数值模拟

Chongqing Shi Liangkou Hydropower Station Spillway Ultra-high Scheme Optimization of Numerical Simulation

针对溢洪道弯曲段凹岸与凸岸水位、水深差值大的问题,选择重庆石梁扣水电站溢洪道为研究对象,基于常用的反超高优化方案对弯曲段进行优化设计,并借助SMS流体计算软件建立二维数模进行计算分析。分析结果显示,反超高优化方案通过凸岸抬高与凹岸下降的共同作用,有效消减弯曲段两侧水头、流速差,消减了水流横向移动,溢洪道内流场分布、水流结构具有明显改善。

In view of the spillway bending Duan Ao shore and convex bank water level, the prob- lem of large water depth difference, choose Chongqing ShiLiangKou hydropower station spillway as the research object, based on the commonly used surpassed Gao Youhua scheme optimization design in the bending section, and with the help of SMS fluid calculation software to establish the two - di- mensional mathematical model for computing analysis. Compared the analysis results show that, overhauling Gao Youhua scheme through the convex bank up to the fall in the concave bank, the function of effective de - escalation curve segment, the velocity difference on both sides of the head, cut water lateral movement, flow field distribution in the spillway, the flow structure has improved significantly.