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针对某电站尾水渠实际情况,应用k—ε模型和控制体积法建立了三维紊流数学模型对原设计体型进行模拟,并将计算结果与物理模型试验的测量结果进行比较,验证了三维数值模拟计算的准确可靠性。在此基础上,根据工程的实际需要对尾水渠不同体型进行了流态、流速分布及能头损失的数值模拟,为尾水渠体型优化提供了建议。
According to the actual situation of a tailrace of a power station, a three-dimensional turbulence mathematical model is established by using the k-ε model and the control volume method to simulate the original design body shape. The comparison between the calculated results and the physical model test results verifies that the three-dimensional numerical simulation Calculated accuracy and reliability. On this basis, according to the actual needs of the project, the numerical simulation of flow pattern, velocity distribution and head loss for different body shapes of tailrace are provided.