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杭州三堡排涝工程的泵站前池兼有正向和侧向的进水水流,在一定的运行条件下,侧向的折冲水流影响正向主流流态,造成进水池中出现主流偏移、脱壁和旋涡,对泵站的运行效率有较大的影响。通过对该工程不同工况下的泵站运行进行数值模拟获得前池的流场,据此评价折冲水流对泵站机组运行的影响,提出设计调整方案,增加整流措施,并根据调整后的流场计算结果,反馈调整方案的可行性。
The front pool of pump station in Sanbao drainage project in Hangzhou has both forward and lateral inlet and outlet water flows. Under certain operating conditions, the lateral inflow and outflow affects the mainstream flow regime, resulting in the mainstream drift in the inflow pool. Off the wall and vortex, the pumping station operating efficiency has a greater impact. The flow field in the forecake pool was obtained through numerical simulation of pumping station operation under different working conditions of the project. Based on this, the influence of the inflowing flow on the operation of the pumping station was evaluated. The design adjustment plan was proposed to increase the rectification measures. Based on the adjusted flow Field calculation results, feedback adjustment program feasibility.