摘要近年来，随着世界各国之间的经济文化交流越来越密切和船舶运输行业的迅速发展，船舶的破损事故时有发生，对生态环境造成了破坏，也对人们生命财产安全产生了极大的威胁，因此，国内外的专家对船舶破损进水过程进行了大量的深入研究，对船舶运输行业做出了极大的贡献。95176

目前对船舶底部破损进水过程研究的主要方法有：理论方法，数值模拟，模型实验。

本文研究用到的是MPS粒子法，移动粒子半隐式法是一种拉格朗日粒子法，适用于处理边界大变形流动计算的问题。本文使用基于无网格粒子法MPS方法(movingparticlesemi-implicitmethod)对船舱底部破损进水过程进行了研究。针对船舱底部破损进水过程进行了数值模拟，简单地模拟了破损进水过程的特性，并且对模拟结果进行了深入地分析和总结，本文主要进行了如下工作：(1)调研收集分析有关资料，总结分析船舱底部破损进水过程数值模拟研究的现状；(2)根据船舱尺寸和吃水位置进行几何建模并确定船舱底部破损工况；(3)根据破损工况模拟计算船舱底部破损进水过程；(4)总结分析船舱底部破损进水过程的影响因素和特性。（5）分析本次数值模拟的不足之处，并提出相应的改进措施，为以后的深入研究做铺垫。

毕业论文关键词：移动粒子法（MPS），船舶破损，数值模拟

Abstract In recent years, with the frequent trade between countries and the rise of ship transportation industry, breakage accidents often occur in ships, causing damage to the ecological environment and posing a great threat to the safety of people's lives and property。 Therefore，experts at home and abroad have done a lot of in-depth research on the process

of ship damage and water inflow, which made great contributions to the ship transportation industry。

At present, there are three main methods to study the damage of cabin and the water flooding process: theoretical method, numerical simulation, model experiment。

In this paper, the method MPS (moving particle semi-implicit) method is used to study the process of water flooding at the bottom of a ship's cabin。 The water flooding process at the bottom of cabin was simulated and the results are deeply analyzed and summarized。 The following work has been carried out: (1) Investigate, collect and analyse of relevant data, summarize and analyze the status of numerical simulation of water flooding process at the bottom of cabin; (2) Build the geometric model and determine the damaged condition of cabin bottom; (3) Simulate the water flooding at the bottom of the cabin according to the damaged condition;(4) Summarize and analyze the influencing factors and characteristics of the water flooding process at the bottom of the cabin;(5) This paper analyzes the shortcomings of the numerical simulation, and puts forward the corresponding improvement measures to pave the way for further research。

Keywords: moving particle semi-implicit（MPS）, shipbreaking, numerical simulation

目 录

第一章绪论 1

1。1本文的研究背景和意义 1

1。2国内外研究现状和发展水平 3

1。2。1船舱破损进水过程的研究方法 3

1。2。2基于破损进水过程的研究现状 4

1。2。3基于MPS法的研究现状 6

1。3研究的主要内容及方法 7

第二章数学模型及算法 8

2。1控制方程