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Computational Gas-Solids Flows and Reacting Systems:  Theory, Methods and Practice

Book Description

Computational Gas-Solids Flows and Reacting Systems: Theory, Methods and Practice addresses the need for a comprehensive book on computational gas-solids flow to aid researchers, graduate students, and practicing engineers in this rapidly expanding area. This unique book provides a full exploration of the theory, numerical methods, and practices associated with this emerging area, including hydrodynamic equations, quadrature-based moment methods, and direct numerical simulation.

Table of Contents

  1. Cover
  2. Title Page
  3. Copyright Page
  4. List of Reviewers
  5. Foreword
  6. Preface
    1. Organization
  7. Section 1: Theory
    1. Chapter 1: Multiphase Continuum Formulation for Gas-Solids Reacting Flows
      1. Abstract
      2. 1. Introduction
      3. 2. Gas-Solids Continuum Model
      4. 3. Conservation of Mass
      5. 4. Conservation of Momentum
      6. 5. Conservation of Species Mass
      7. 6. Conservation of Internal Energy
      8. 7. Initial and Boundary Conditions
      9. 8. Demonstration Problem: Bubbling Fluidized Bed
      10. 9. Conclusion
    2. Chapter 2: Hydrodynamic Equations from Kinetic Theory
      1. Abstract
      2. INTRODUCTION
      3. Context: Gas-Solid Flows
      4. Kinetic Theory as a Basis for Hydrodynamics
      5. Navier Stokes Hydrodynamics for the hard sphere fluid
      6. Complex Fluid Hydrodynamics
      7. Discussion
      8. NOMENCLATURE
    3. Chapter 3: Kinetic Theory for Granular Materials
      1. ABSTRACT
      2. Introduction
      3. Kinetic-Theory-Based Models for Polydisperse Solids
      4. Concluding Remarks
    4. Chapter 4: Interfacial Interactions
      1. Abstract
      2. Introduction
      3. 1. HYDRODYNAMIC INTERACTIONS BETWEEN PARTICLES AND FLUID
      4. 2. DRAG FORCE MODELS: APPLICATIONS AND LIMITATIONS
      5. 3. MULTI-SCALE MODEL FOR DRAG FORCE
      6. 4. CHARACTERISTICS OF DRAG FORCE DISTRIBUTION IN DYNAMIC FLOWS
      7. 5. SUMMARY
    5. Chapter 5: Mass and Heat Transfer Modeling
      1. Abstract
      2. Introduction
      3. Dense Phase
      4. Dilute Phase: Clustering Flow
      5. Turbulent Dispersion
      6. Application of Turbulent Dispersion Theory to CFD Simulation
      7. Heat Transfer Across the System Boundary
      8. Nomenclature
      9. Greek Symbols
  8. Section 2: Numerical Methods
    1. Chapter 6: Coupled Solvers for Gas-Solids Flows
      1. Abstract
      2. 1 Introduction
      3. 2 Artificial Incompressibility
      4. 3 Interpolation Methods
      5. 4 Physically Consistent Interpolation
      6. 5 Momentum Weighterd Interpolation
      7. 6 Treatment of Source Terms
      8. 7 Treatment of Volume Fraction
      9. 8 Eulerian-Lagrangian Fluid-Particle Method
      10. 9 Euler-Euler Equations
      11. 10 Boundary Conditions
      12. 11 Solving Strategy
      13. 12 Validation: Lid Driven Cavity Flow
      14. 13 Conclusion
    2. Chapter 7: Quadrature-Based Moment Methods for Polydisperse Gas-Solids Flows
      1. Abstract
      2. Introduction
      3. Background
      4. QMOM for the Solution of the Boltzmann Equation
      5. Coupling of QMOM with a Fluid Solver
      6. Application to Gas-Particle Flows
      7. Future Research Directions
      8. Conclusion
    3. Chapter 8: Direct Numerical Simulation of Gas-Solids Flow Based on the Immersed Boundary Method
      1. Abstract
      2. MOMENTUM TRANSFER IN GAS-SOLIDS FLOW
      3. Governing Equations
      4. THE IMMERSED BOUNDARY METHOD
      5. Simulation Methodology
      6. Validation Tests
      7. Assessment of IBM for Drag Law Formulation
      8. Future Directions
      9. CONCLUSION
    4. Chapter 9: The Multiphase Particle-in-Cell (MP-PIC) Method for Dense Particle Flow
      1. Abstract
      2. Introduction
      3. Equations of Motion
      4. Numerical solution of the MP-PIC equations
      5. Numerical Solution of the Fluid Phase
      6. CPFD Examples using the MP-PIC scheme
  9. Section 3: Practice
    1. Chapter 10: Circulating Fluidized Beds
      1. Abstract
      2. Introduction
      3. Application of CFBs
      4. CFB Hydrodynamics
      5. CFD Modeling of CFB Systems
      6. Summary
    2. Chapter 11: CFD Modeling of Bubbling Fluidized Beds of Geldart A Powders
      1. ABSTRACT
      2. 1. Introduction
      3. 2. Governing Equations and Closure Relationships
      4. 3. Literature Review: Previous CFD Modeling Efforts of Dense Beds of Geldart A Powder
      5. 4. Drag Force Modification in the Eulerian Model of a Fluidized Bed of Geldart A Powder
      6. 5. CFD Modeling of the Stripper Section of a Fluid Catalytic Cracking Unit (FCCU)
      7. 6. Sub-Grid Models
      8. 7. Conclusion
    3. Chapter 12: Computational Modeling of Gas-Solids Fluidized-Bed Polymerization Reactors
      1. ABSTRACT
      2. INTRODUCTION
      3. UNIPOL PE PROCESS
      4. CHEMICAL REACTION ENGINEERING MODEL FOR POLYMER PARTICLES
      5. MULTI-FLUID EULERIAN MODEL
      6. CONCLUSION AND FUTURE DIRECTIONS
    4. Chapter 13: Validation Approaches to Volcanic Explosive Phenomenology
      1. Abstract
      2. 1. Introduction
      3. 2. Physical and Numerical Approach
      4. 3. Analog Validation Approaches
      5. 4. Field Validation Approaches
      6. 6. Conclusion
  10. Compilation of References
  11. About the Contributors