结合数值计算与模型试验研究阻抗式调压室阻抗损失系数

Research on the Resistance Coefficient of Throttled Surge Chamber in Combinationwith Numerical Computation and Model Test

通过带调压室水电站的模型试验和数值仿真计算,分析了阻抗式调压室在各种水力过渡过程下的水力工作特性。研究得出阻抗式调压室阻抗损失系数在不同工况下的变化规律,以及在确定阻抗式调压室阻抗损失系数时,需结合模型试验结果,最终确定流进与流出的阻抗损失系数。

The hydraulic characteristics of the throttled surge chamber under various hydraulic transition processes are analyzed through combination of numerical simulation and model test. The results of the change rules of the hydraulic resistance losses coefficients of throttled surge chamber under various hydraulic conditions are derived. It is necessary to combine the numerical computation with model test in determining the hydraulic losses coefficient at the inlet and outlet ends of the throttled surge chamber.