浅水垫消力池的大涡模拟研究

浅水垫消力池与常规消力池相比，消能效果更好，而且可以减小挖深和池长，经济效果显著。以往对浅水垫消力池的研究多局限于试验手段，本文采用大涡模拟方法对浅水垫消力池进行了数模计算。计算结果表明，在流态、流速、时均压力及脉动压力等水力参数上，数值计算结果都和模型试验结果基本一致，说明大涡模拟方法能较好地模拟具有复杂流动的浅水垫消力池的各种水力特性，可以采用该模拟方法深入研究该型消力池的水力特性及消能机理。

Large Eddy Simulation on Stilling Basin with Shallow-water Cushion

SBSWC can make full advantages of water-cushion to reduce the velocity near the bottom of stilling basin effectively, redistribute the pressure beneficial to stability and safety, and improve the energy dissipation rate distribution compared with the conventional stilling basin. The previous study of which was mainly focused by experimental means. The systematic comparison of calculation and experiment have been conducted and shown that the flow regimes, velocity fields and pressures obtained from LES are in good agreement with the experimental data which indicates that it is reasonable to use LES to simulate the complex flow characteristics in SBSWC.