水利水电科技进展2025，Vol.45Issue(3)：48-54,85,8.DOI:10.3880/j.issn.1006-7647.2025.03.007
孤立波生成问题的MPS数值模拟
Numerical simulation of solitary wave generation using MPS method
摘要
Abstract
Based on the moving particle semi-implicit(MPS)method,an equivalent momentum transfer method was developed to solve the interaction between fluid and rigid structures,and the solitary wave generation was numerically simulated using the water level difference method and box-dropping method.In this method,the structure is discretized to rigid body particle groups,which are replaced by corresponding fluid particle groups.After solving the momentum equation of the single-density fluid in the entire domain,the momentum obtained by these fluid particle groups is transferred to their corresponding rigid particle groups,and the initial geometric configuration of the rigid body is restored,thus completing the dynamic coupling motion process between the fluid and structure.The numerical simulation results show that the flow field change near the structure,wave propagation,and structural motion during the solitary wave generation process simulated by this method are in good agreement with the results of physical modeling experiments.Compared with the box-dropping method,the water level differences method can generate solitary waves with greater height and faster propagation speed,but it needs more time to generate stable solitary waves.关键词
孤立波/移动粒子半隐式方法/等效动量传递/流固耦合Key words
solitary wave/moving particle semi-implicit method/equivalent momentum transfer/fluid-solid coupling分类
水利科学引用本文复制引用
李梦诗,王国玉,李春辉..孤立波生成问题的MPS数值模拟[J].水利水电科技进展,2025,45(3):48-54,85,8.基金项目
国家自然科学基金重点项目(52031002) （52031002）
