基于SPH方法一维颗粒仿真分析  

O ne dim ensional particle sim ulation analysis based on SP H m ethod

作　　者：程丽[1] 张超 肖道林[1,2] 张赵威 

机构地区：[1]沈阳大学机械工程学院,辽宁沈阳110044 [2]中国科学院沈阳自动化研究所,辽宁沈阳110016

出　　处：《科学技术创新》2020年第27期73-74,共2页Scientific and Technological Innovation

基　　金：中科院重大技术攻关(XDA1502030505)(小行星采样先导课题)。

摘　　要：SPH方法由于可以在不同粒子上赋予物理特性且核心方程为矢量方程,在近年得到越来越多学者重视。根据此特性本次为简化模型对其一维形式进行模拟,选用三次B样条函数作为核函数,加上Lennard-Jones边界力模型,同时结合蛙跳积分法进行一维数值分析从而观察到粒子各个时刻的运动状态与物理量的变化。SPH method has been paid more and more attention in recent years because it can give physical properties to different particles and the core equation is vector equation.Because of this characteristic,in order to simplify the model and simulate its one-dimensional form,the cubic B-spline function is selected as the kernel function,and the Lennard Jones boundary force model is added.At the same time,the frog leaping integral method is used to conduct one-dimensional numerical analysis,so as to observe the changes of particle motion state and physical quantity at various times.

关 键 词：SPH方法 一维 深空采样 

分 类 号：TP301.6[自动化与计算机技术—计算机系统结构]