本书以静电场、流场等复杂多场作用下细颗粒团聚、迁移与沉积行为为研究对象，发展了粘附性微米颗粒接触相互作用及静电相互作用的快速算法（Fast DEM），并将该算法与直接数值模拟结合，揭示了微米颗粒在湍流场内的碰撞与团聚机理，构建了湍流团聚核函数；进一步结合Oseen动力学算法，给出了荷电颗粒群电迁移率及形状演化与荷电强度、流体惯性之间的关联规律；最后，针对细颗粒在极板及纤维表面的沉积过程，明晰了沉积体结构及过滤效率与颗粒微观特性之间的关系。

1 Introduction
1.1 Adhesive Particle Flow
1.2 Example Systems
1.3 Collision and Agglomeration of Particles in Turbulence
1.4 Migration of Microparticles in an Electrostatic Field
1.5 Deposition of Microparticles and Clogging Phenomenon
1.6 Discrete Element Methods for Adhesive Particles
1.7 A Road Map to Chaps
References
2 A Fast Discrete Element Method for Adhesive Particles
2.1 Introduction
2.2 Discrete Element Method for Adhesive Particles
2.3 Critical Sticking Velocity for Two Colliding Particles
2.3.1 Temporal Evolution of the Collision Process
2.3.2 Prediction of the Critical Sticking Velocity
2.3.3 Effect of Particle Size
2.4 A Fast Adhesive DEM
2.4.1 Accelerating Adhesive DEM Using Reduced Stiffness
2.4.2 Modified Models for Rolling and Sliding Resistances
2.5 Determination of Parameters in Adhesive DEM
2.5.1 An Inversion Procedure to Set Parameters in Adhesive DEM
2.5.2 Comparison Between Experimental and DEM Results
2.6 Test on Packing Problem
2.6.1 Packing Fraction and Coordination Number
2.6.2 Local Structure of Packings
2.6.3 Interparticle Overlaps and Normal Forces
2.7 Summary
References
3 Agglomeration of Microparticles in Homogenous Isotropic Turbulence
3.1 Introduction
3.2 Methods
3.2.1 Fluid Phase Calculation
3.2.2 Equation of Motion for Solid Particles
3.2.3 Multiple-time Step Framework
3.2.4 Simulation Conditions
3.2.5 Identification of Collision，Rebound and Breakage Events
3.2.6 Smoluchowski's Theory
3.3 Collision Rate， Agglomerate Size and Structure
3.4 Effect of Stokes Number
3.5 Exponential Scaling of Early-Stage Agglomerate Size
3.6 Agglomeration Kernel and Population Balance Modelling
3.7 Effect of Adhesion on Agglomeration
3.8 Effect of Adhesion on Breakage of Agglomerates
3.9 Formulation of the Breakage Rate
3.10 Agglomerate Size Dependence of the Breakage Rate
3.11 Role of Flow Structure
3.12 Conclusions
References
4 Migration of Cloud of Low-Reynolds-Number Particles with Coulombic and Hydrodynamic Interactions
4.1 Introduction
4.2 Formulation of Problem
4.3 Effect of Coulomb Repulsion on Cloud Shape
4.3.1 Cloud Shape
4.3.2 Effect of Fluid Inertia
4.3.3 Stability of the Cloud
4.4 Evolution of Particle Cloud Under Strong Repulsion
4.4.1 Scaling Analysis and Continuum Description
4.4.2 Prediction of Cloud Size and Migrating Velocity
4.4.3 Discussion
4.5 Summary
References
5 Deposition of Microparticles with Coulomb Repulsion
5.1 Introduction
5.2 Models and Methods
5.2.1 Simulation Conditions
5.2.2 Forces on Particles
5.2.3 Average-Field Calculation for Coulomb Interactions in 2D Periodic System
5.3 Effects of Coulomb Interaction on Packing Structure
5.4 Scaling Analysis of the Interparticle Force
5.5 Governing Parameters for the Packing Structure
5.6 Phase Diagram
5.7 Summary
References
6 Deposition of Charged Micro-Particles on Fibers: Clogging Problem
6.1 Introduction
6.2 Models and Method
6.2.1 Simulation Conditions: Two Fiber System
6.2.2 Gas Phase Simulation
6.2.3 Solid-Phase: Discrete-Element Method（DEM）
6.2.4 Governing Parameters
6.3 CloggingNon-clogging Transition
6.4 Measurement of Particle Capture Efficiency
6.4.1 Repulsion Effect: The Critical State
6.4.2 Structure Effect
6.5 Summary
References
7 Conclusions and Perspective
7.1 Conclusions
7.2 Future Work
References