重庆大学学报2017，Vol.40Issue(11)：11-19,9.DOI:10.11835/j.issn.1000-582X.2017.11.002
SPH方法在溃坝数值模拟中的应用
Application of SPH method to numerical simulation of dam-break
摘要
Abstract
Smoothed particle hydrodynamics (SPH) method is a fully Lagrangian meshless method,which is available to simulate the problems with instantaneous very large deformation,such as wave cracking,high-speed water flow,high-speed impact and collision.The basic principle,kernel function,discretization of governing equations and boundary treatment of SPH method are introduced,a numerical flume model is constructed and its validity is verified.2D dam-break problem under two cases is simulated respectively,i.e.obstacle with and without holes,and the computational results are compared and analyzed.It is demonstrated that the SPH method can nicely capture the variation of the free surface flow,the fluid fragment and coalescence,and to some extent,the energy dissipation effect is better when the obstacle has holes.关键词
光滑粒子流体动力学/SPH/溃坝/障碍物/数值模拟Key words
smoothed particle hydrodynamics/SPH/dam-break/obstacle/numerical simulation分类
建筑与水利引用本文复制引用
刘维平,张永祥..SPH方法在溃坝数值模拟中的应用[J].重庆大学学报,2017,40(11):11-19,9.基金项目
中央高校基本科研业务费(106112015CDJXY320007).Supported by the Fundamental Research Funds for the Central Universities(106112015CDJXY320007). （106112015CDJXY320007）
