戽流的三维大涡模拟研究

3-D large eddy simulation of bucket flow

本文采用大涡模型和VOF模型对台江水电站模型戽流消能试验进行了三维数值模拟 ,数值仿真所得到的水位流量关系曲线、水面线与试验结果吻合得比较好 ,可作为工程设计、运行管理的依据。同时计算结果还能反映水面波动 ,与试验观测到的现象基本符合 ,为进一步深入研究水力波动和下游冲刷的大涡数值模拟提供了基础。

In this paper, bucket flow energy dissipation model test in Taijiang power station is simulated with large eddy method and VOF. Simulation result of level, discharge curve and flow profile match model test well, which can be used as design and operational guidance. At the same time, simulation can show water level fluctuation, which agrees with observation record. Thus, it provides solid foundation for further research on water fluctuation and scour.