摘要
沉沙池在水利水电工程中是一种十分必要的水工建筑物,在处理泥沙中发挥了重要的作用,为后续下级设备正常运行提供了可靠保障。采用标准k-ε模型,建立石门坎水电站现状、优化后的沉沙池模型,模拟了沉沙池内的三维流场,并运用离散相DPM模型模拟了泥沙运动,得到了更加精细的沉沙池内水流形态、流速场分布及池内泥沙运动轨迹和沉降效果。
Desilting basin is a very necessary hydraulic structure in hydraulic and hydro-power engineering. It plays a pivotal role in the process of sediment and provides a reliable guarantee for the normal operation of the subsequent downstream equipment. The Standard k-εmodel was used to simulate the present desilting basin in three dimensional numerical simulation and structural optimization for the present desilting basin. Establishing the present and optimized desilting basin model of Shimenkan Hydropower Station was to simulate the three dimensional flow field in the desilting basin,the author also used the discrete phase DPM model to simulate the movement of sediment and obtained the more precise water flow pattern and flow field distribution in the desilting basin,including sediment movement and subsidence effect. Through numerical simulation,the flow field within the sand basin change and sediment movement problem had been solved.
出处
《人民黄河》
CAS
北大核心
2018年第2期105-108,134,共5页
Yellow River
关键词
沉沙池
标准k-ε模型
数值模拟
沉降率
离散相DPM模型
desilting basin
standard k-ε model
numerical simulation
sedimentation rate
discrete phase DPM model
