基于粒子法的规则波中浮体运动仿真  

Simulation Study of Floating Object in Regular Waves Based on Particle Method

作　　者：宋学敏 王绪明[3] 刘维勤[1,2] SONG Xuemin;WANG Xuming;LIU Weiqin(Key Laboratory of High Performance Ship Technology, Wuhan University of Technology, Wuhan 430063, China;School of Naval Architecture, Ocean and Energy Power Engineering, Wuhan University of Technology,Wuhan 430063, China;National Engineering Research Center for Water Transportation Safety, Wuhan University of Technology, Wuhan 430063, China)

机构地区：[1]高性能舰船技术教育部重点实验室,武汉430063 [2]武汉理工大学船海与能源动力工程学院,武汉430063 [3]武汉理工大学国家水运安全工程技术研究中心,武汉430063

出　　处：《武汉理工大学学报（交通科学与工程版）》2022年第1期54-59,共6页Journal of Wuhan University of Technology（Transportation Science & Engineering）

基　　金：国家自然科学基金(52101371,52071243);武汉理工大学校自主创新基金(173102007)。

摘　　要：基于自主开发的移动粒子半隐式法(moving particle semi-implicit method,MPS)求解器,引入了改进的边界条件算法和改进的压力梯度模型,对规则波中的浮体运动进行了仿真研究.利用该方法模拟了线性波和二阶Stokes波,通过与理论结果的对比分析,验证了MPS方法在数值造波方面应用的可行性和可靠性;引入胡克定律计算系泊模型的系泊力,通过数值计算分析了波浪中系泊浮体的运动响应,并与理论结果进行了对比分析,计算结果表明:MPS方法适用于进行规则波中浮体运动的数值仿真问题.Based on the self-developed moving particle semi-implicit method solver,the improved boundary condition algorithm and the improved pressure gradient model were introduced to simulate the floating body motion in regular waves.The linear wave and second-order Stokes wave were simulated by this method,and the feasibility and reliability of MPS method in numerical wave-making were verified by comparing with theoretical results.Hooke’s law was introduced to calculate the mooring force of mooring model,and the motion response of mooring floating body in waves was analyzed by numerical calculation,and compared with the theoretical results.The results show that MPS method is suitable for numerical simulation of floating body motion in regular waves.

关 键 词：移动粒子半隐式法 线性波 浮体 二阶Stokes波 运动响应 

分 类 号：U66[交通运输工程—船舶及航道工程]