针对水轮机组运行参数变化进行评估时,传统仿真计算需要对模型进行重新网格划分及边界条件设置,大大增加了计算成本。对此,以某抽蓄电站的水泵水轮机为例,提出一种基于本征正交分解(POD)方法的面向数字孪生应用的水泵水轮机全流道三维降阶模型,实现水泵水轮机快速数值计算并实现流场云图分布的可视化。与CFD仿真方法对比,在相同计算资源的条件下,仿真时间从5 h缩短至0.5 s
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