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鉴于抽水蓄能电站进出水口因有进水和出水的双向水流,其体型对电站运行的影响较常规电站大,以某抽水蓄能电站为例,通过建立三维水动力数学模型,运用CFD软件对电站进行数值模拟,发现该电站不能达到工程设计需要,进而对导流隔墩尾部位置及中孔和边孔的扩散角进行了优化调整,对比分析了优化前后不同水位条件下发电和抽水时的水流和水头损失情况。结果表明,优化方案解决了原体型分流不均的问题,并减小了水头损失。
In view of the two-way water flow of inlet and outlet of pumped storage power station due to inflow and outflow, its body size has more influence on power station operation than conventional power station. Taking a pumped-storage power station as an example, by establishing a three-dimensional hydrodynamic mathematical model and using CFD software The numerical simulation of the power station shows that the power station can not meet the needs of engineering design, and then the tail position of the diversion pier and the diffusion angle of the mesopores and edge holes are optimized and adjusted. The power generation and pumping under different water levels before and after optimization Water flow and head loss. The results show that the optimization scheme solves the problem of uneven distribution of the original body type and reduces the head loss.