K2_SPH方法及二维破碎波的模拟  

K2_SPH Method and Simulation of 2D Breaking Waves

作　　者：郑兴[1] 马庆位 段文洋[1] 

机构地区：[1]哈尔滨工程大学船舶工程学院 [2]伦敦城市大学工程及数学科学学院

出　　处：《计算物理》2012年第3期317-325,共9页Chinese Journal of Computational Physics

基　　金：国家自然科学基金(51009034);111计划(B07019)资助项目

摘　　要：通过对一些关键技术的改进,特别是自由表面的判断方法和改进的固壁边界条件,使K2_SPH方法能够模拟破碎波问题,完整实现波浪的爬升、翻转、破碎等过程.对大幅液舱晃荡问题的模拟表明,K2_SPH方法较传统SPH方法在波形和压力分布都有明显改进.We introduce several improvements on key numerical techniques, especially for free surface identification and solid boundary handling method. They make K2_SPH simulating breaking waves successfully. It includes running-up, over-turning and breaking processes. Numerical test of violent tank sloshing shows that K2_SPH method is more accurate and reliable than traditional smoothed particle hydrodynamics （SPH） method for wave profile and pressure distribution.

关 键 词：光滑粒子流体动力学 K2_SPH 无网格方法 破碎波模拟 

分 类 号：O352[理学—流体力学]