基于SPH方法的二维宽顶堰溢流数值模拟

发布时间：2018-03-19 18:38

本文选题：SPH　切入点：二维宽顶堰溢流　出处：《南水北调与水利科技》2017年02期 　论文类型：期刊论文

【摘要】：光滑粒子水动力学方法(SPH)是一种基于纯拉格朗日思想的无网格粒子方法,在众多科学和工程领域得到了初步应用。采用SPH方法对二维宽顶堰溢流进行了数值模拟,并利用机群进行并行计算来提高计算效率,将模拟数据与试验数据进行了对比。结果表明,SPH方法可以模拟出二维宽顶堰自由出流和淹没出流时水流流态、水跌、回流区、水跃现象,计算出溢流流量、流速等水力参数,并且采用数据拟合得出与理论相符的断面流速分布图。结果表明了SPH方法可以较好模拟二维宽顶堰溢流中的流速分布以及水面曲线。
[Abstract]:Smooth particle hydrodynamic method (SPHs) is a meshless particle method based on pure Lagrangian theory, which has been applied in many fields of science and engineering. The SPH method is used to simulate the two-dimensional overflow of a wide crested Weir. The simulation data are compared with the experimental data. The results show that the SPH method can be used to simulate the water flow pattern, water drop and reflux zone when the two dimensional wide top Weir flows out freely and inundated. The hydraulic parameters such as overflow flow, velocity of flow and so on are calculated. The results show that the SPH method can well simulate the velocity distribution and the surface curve in the two dimensional wide top Weir overflow.
【作者单位】：青海大学水利电力学院;
【基金】：国家自然基金面上基金(51479087) 水沙科学与水利水电工程国家重点实验室开放研究基金资助课题(sklhse-2015-B-02) 青海大学高层次人才项目(k160024)~~
【分类号】：TV132.2

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