NUMERICAL SIMULATIONS OF WATER WAVE DYNAMICS BASED ON SPH METHODS  

作　　者：ZHENG Kun SUN Zhao-chen SUN Jia-wen ZHANG Zhi-ming YANG Guo-ping ZHOU Feng 

机构地区：[1]State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China [2]CCCC Water Transportation Consultants Co. Ltd, Beijing 100007, China

出　　处：《Journal of Hydrodynamics》2009年第6期843-850,共8页水动力学研究与进展B辑（英文版）

基　　金：supported by the National High Techology Research and Development Program of China (863 Program,Grant No.2007AA11Z130)

摘　　要：A numerical model was established for simulating water wave dynamic problems by adopting the Smoothed Particle Hydrodynamics （SPH） methods of iterative solution of Poisson＇s equation for pressure field, and meanwhile the sub-grid turbulence model was applied in the simulation so as to more accurately describe the turbulence characteristics at the time of wave breaking. In this article, simulation of the problem of the dam collapsing verifies the compoting accuracy of this method, and its results can be identical with the results of VOF method and the experimental results by comparison. Numerical simulations of the course of solitary wave and cnoidal wave run-up breaking on beaches were conducted, and the results are basically consistent with experimental results This indicates that the SPH method is effective for the numerical simulation of the complex problems of water wave dynamics.A numerical model was established for simulating water wave dynamic problems by adopting the Smoothed Particle Hydrodynamics （SPH） methods of iterative solution of Poisson＇s equation for pressure field, and meanwhile the sub-grid turbulence model was applied in the simulation so as to more accurately describe the turbulence characteristics at the time of wave breaking. In this article, simulation of the problem of the dam collapsing verifies the compoting accuracy of this method, and its results can be identical with the results of VOF method and the experimental results by comparison. Numerical simulations of the course of solitary wave and cnoidal wave run-up breaking on beaches were conducted, and the results are basically consistent with experimental results This indicates that the SPH method is effective for the numerical simulation of the complex problems of water wave dynamics.

关 键 词：Smoothed Particle Hydrodynamics （SPH） Poisson＇s equation water wave dynamics 

分 类 号：O353.2[理学—流体力学] TE319[理学—力学]