基于k-ε模型的泵站进水池三维紊流数值模拟  

The Numerical Simulation of Three-dimensional Turbulent Flow in the Inlet Basin of Pumping Station Based on the k-ε Model

作　　者：丁兆利 Ding Zhaoli(Beijing Beihua Zhongqing Environmental Engineering Technology Co.,Ltd.,Beijing 102600,China)

机构地区：[1]北京北华中清环境工程技术有限公司

出　　处：《陕西水利》2019年第10期13-15,19,共4页Shaanxi Water Resources

摘　　要：平鲁地下泵站进水池体型为"下挖式"带支渠的侧向进水池,结构体型复杂,根据泵站进水系统布置方式,对该泵站前池在不同泵组运行组合工况下的进水池水力流态进行了分析,验证了各工况下平鲁泵站进水池内的水流流态。结果表明,由于"下挖式"带支渠侧向进水池在水平和垂向具有弯道水流的特性,水流三维流场复杂,加之进水池顶部弧形坎的阻挡、导流作用,进水池内横向扩散不充分,主流偏向右侧,右侧较大回流区偏离进水池,且被主流隔离,其对进水池内流态影响较小。The shape of the inlet tank of Pinglu underground pumping station is the"downward digging"lateral inlet basin with branch channel. The structure is complex. According to the arrangement of the water inlet system of the pumping station, its front pool is operated under different pumping conditions. The hydraulic flow pattern of the inlet pool was analyzed to verify the flow pattern in the inlet tank of Pinglu Pumping Station under various working conditions. The results show that the three-dimensional flow field of the water flow is complicated due to the characteristics of the curved water flow in the horizontal and vertical direction of the lateral digging tank with the "drill-down" branch channel, and the blocking and diversion of the curved ridge at the top of the inlet pool. The lateral diffusion is not sufficient, the mainstream is biased to the right, and the larger recirculation zone on the right side deviates from the inlet pool and is isolated by the mainstream, which has less influence on the flow regime in the inlet pool.

关 键 词：进水池 数值模拟 k-ε模型 三维流场计算 

分 类 号：TV672.2[水利工程—水利水电工程]