“十三五”国家重点出版物出版规划项目·航天优选技术研究与应用系列移动粒子半隐式方法理论及应用(英文) 本书特色

This book systematically introduces the moving particle semi-implicit(MPS) method and its im

provements in the mechanical engineering. The book is composed of six chapters. The first chapter in

troduces the classification of mesh and meshless methods. The second chapter carefully describes the

derivation of the MPS method. Chapter three reviews the different wall boundary conditions used in the

MPS method and emphasizes the polygon wall boundary condition that is an important wall boundaryThis book systematically introduces the moving particle semi-implicit(MPS) method and its im provements in the mechanical engineering. The book is composed of six chapters. The first chapter in troduces the classification of mesh and meshless methods. The second chapter carefully describes the derivation of the MPS method. Chapter three reviews the different wall boundary conditions used in the MPS method and emphasizes the polygon wall boundary condition that is an important wall boundary condition widely employed in the industry simulations. Chapter four to six introduces the latest enhance ments of the polygon wall boundary conditions in the particle number density and the pressure distribu tions The book has clear structure and pays attention to the basic theories and derivations. Many newest research progress of the MPS method are included. The book can be used as the textbook for the post- graduate students in the field of the mechanical engineering, nuclear engineering, naval ocean engineering and other relative majors. The researchers and engineers can also study the methods in the book to conduct industry simulations

“十三五”国家重点出版物出版规划项目·航天优选技术研究与应用系列移动粒子半隐式方法理论及应用(英文) 内容简介

本文系统地介绍了运动粒子半隐式方法及其在机械工程方面的进步。这本书由六章组成。章介绍了网格的分类和无网格方法。第二章详细介绍MPS方法的推导过程。第三章回顾了MPS方法中不同的壁面边界条件，重点介绍了多边形壁面边界条件，这是工业仿真中广泛应用的一种重要壁面边界条件。第四章至第六章介绍了多边形壁面边界条件在粒子数、密度和压力分布方面的近期新进展。该书结构清晰，注重基本理论和推导。介绍了MPS方法的近期新研究进展。

“十三五”国家重点出版物出版规划项目·航天优选技术研究与应用系列移动粒子半隐式方法理论及应用(英文) 目录

Contents Chapter 1 Introduction…………………………………………………………………1 1. 1 Computational fluid dynamics 1.1.1 Grid methods…………………………………………………………………1 1.1.2Mesh- free methods……… 1.2 Polygon wall boundary condition………………… Chapter2 MPS method…………………………………………4 2.1 Governing equations 2.2 Weight function and discretization models………………4 2.3 Derivation of mPs 2.4 Wall boundary conditions………………………………………………………7 Chapter 3 Boundary conditions in MPS 3.1 Five types of wall boundary conditions…………………………………9 3. 1. 1 Dummy particles 3. 1.2 Mirror particles 3.1.3 Boundary forces……………………………………………………17 3.1.4 Unified semi-analytical wall boundary condition 3.1.5 Polygon wall boundary condition……………………………20 3.2 Initialization of polygon wall boundary condition 3.3 Discretization models of polygon wall boundary condition…………23 3.3.1 Derivation process 3.3.2 Discretization equations……………………………………………24 Chapter 4 Improved wall calculation of polygon wall boundary condition 4.1 Problems of polygon wall boundary condition…………………………28 4.2 Improvement of wall calculations 4.2.1Ⅲ lustration of improved method…………………………………32 4.2.2 Calculation of the wall weight function…………………………32 4.3 Numerical examples 4.3.1 Accuracy of wall weight function at different positions…………34 4.3.2 Classic dam break simulation 4.3.3 Dam break simulation with a wedge in the water tank……………42 4. 4 Summary Chapter 5 Boundary particle arrangement technique in polygon wall boundary condition 5. 1 Boundary particle arrangement technique 5.1.1 Construction of the boundary particles……………… 5. 1.2 Construction of dummy particles 5.2 Adjustment of collision coefficients………………52 5.3 Simulation results 5.3.1 Dam break with a wedge 5.3.2 Simulation of complex geometry 5. 4 Summary Chapter 6 Improvement of pressure distribution in polygon wall boundary condition 6. 1 Research progress 6.2 Improved particle-polygonal meshes interaction models 6.2.1 Re-derivation of polygon wall boundary condition . ........72 6. 2.2 Problem of present source term in the polygon wall boundary condition 6.2.3 Improvement of source term in the polygon wall boundary condition 6.2.4 Improvement of gradient model ...... 6.2.5 Surface detection 6.3 Results and discussions………………………… 6.3. 1 Hydrostatic pressure 6.3.2 Dam break simulation……………… 6.3.3 Complex geometry simulations 6.4 Summary… References Noun index

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