Bridging scales in modelling and simulation of reacting lows. Part 1 /
Bridging Scales in Modelling and Simulating Reacting Flows, Part I , Volume 52 presents key methods to bridge scales in the simulation of reacting single phase flows.New sections in the updated release include topics such as quadrature-based moment methods for multiphase chemically reacting flows, t...
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| Other Authors: | , |
| Format: | eBook |
| Language: | English |
| Published: |
Cambridge, Massachusetts :
Academic Press,
2018.
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| Edition: | First edition. |
| Series: | Advances in chemical engineering ;
Volume 52. |
| Subjects: | |
| Online Access: | Connect to the full text of this electronic book |
Table of Contents:
- Front Cover
- Bridging Scales in Modelling and Simulation of Non-Reacting and Reacting Flows. Part I
- Copyright
- Contents
- Contributors
- Preface
- Chapter One: Quadrature-Based Moment Methods for Multiphase Chemically Reacting Flows
- 1. Introduction
- 1.1. Multiscale Models for Polydisperse Fluid-Particle Flows
- 1.2. Multiscale Modeling Approach
- 1.3. Moment Methods
- 2. Quadrature-Based Moment Methods
- 2.1. Quadrature Method of Moments
- 2.2. Extended Quadrature Method of Moments
- 2.3. Hyperbolic Quadrature Method of Moments
- 3. Kinetic-Based Finite-Volume Methods
- 3.1. Solution of Moment Transport Equations
- 3.2. Kinetic-Based Spatial Fluxes
- 3.3. Hyperbolic Spatial Fluxes Using HyQMOM
- 3.4. Realizable Time-Stepping Schemes
- 4. Application to Turbulent Reacting Flows
- 4.1. Univariate Case Without Reactions
- 4.2. Multivariate Case With Chemical Reactions
- 4.3. Algorithm for Turbulent Reacting Flows
- 5. Application to the Population Balance Equation for Fine Particles
- 5.1. Fine Particles in Laminar Flows
- 5.2. Fine Particles in Turbulent Flows
- 6. Application to the Kinetic Equation for Gas-Particle Flows
- 6.1. Governing Equations for All Gas-Particle Flow Regimes
- 6.2. Solution Algorithm for All Gas-Particle Flow Regimes
- 6.3. Application to Particle-Laden Flows
- 7. Concluding Remarks
- References
- Further Reading
- Chapter Two: Numerical Simulation of Multiphase Reactive Flows
- 1. Introduction
- 2. Brief Description of the Experimental Campaign
- 3. Modeling Description
- 3.1. Eulerian Approach
- 3.2. Methane-Air Premixed Combustion Modeling
- 3.3. Thermal Radiation Model
- 3.4. Local Phase Temperature Determination
- 4. Numerical Simulations
- 4.1. Code Description and Performances
- 4.2. Reactive Fluidized Bed Simulations
- 5. Results and Discussions.
- 5.1. Preliminary Results
- 5.2. Effect of Heat Exchanges at the Wall
- 5.3. Effect of the Grid Refinement
- 5.4. Mesoscopic and Macroscopic Scale Analysis
- 5.5. Evaluation of the Subgrid Turbulent Mixing Effect on the Combustion Process
- 6. Conclusion
- Appendix. Modeling Reactive Gas-Particle Flows
- A.1. Gas-Phase Modeling
- A.2. Dispersed Phase Modeling
- A.3. Closure Laws
- A.3.1. Modeling the Collision Terms
- A.3.2. Modeling the Mean Interphase Transfers
- A.3.3. Modeling the Particle Fluctuating Motion
- A.3.4. Modeling the Fluid-Particle Velocity Correlations
- References
- Chapter Three: Simulation of Turbulent Coalescence and Breakage of Bubbles and Droplets in the Presence of Surfactants, S ...
- 1. Introduction
- 2. Phenomenology of Fluid Particle Breakup
- 3. Phenomenology of Fluid Particle Coalescence
- 4. Analysis of Different Models for Fluid Particle Breakage Kernel
- 4.1. Turbulent Fluctuations Breakage Models
- 4.1.1. Turbulent Kinetic Energy for a Fluid Particle Greater Than a Critical Value
- 4.1.2. Turbulent Velocity Fluctuation Around the Particle Greater Than a Critical Value
- 4.1.3. Turbulent Kinetic of the Bombarding Eddy Greater Than a Critical Surface Energy Value
- 4.1.4. Turbulent Inertial Stress of a Hitting Eddy Greater Than the Interfacial Force of the Smallest Daughter Particle
- 4.1.5. Breakage Kernel Multifractal Model
- 4.1.6. Particle Breakage Model for Finite Reynolds Number
- 4.2. Models for Other Breakage Mechanisms
- 4.3. Breakage Kernel in Contaminated Systems
- 4.4. Comparison Among Different Breakage Kernel Models
- 5. Models for the Daughter Size Distribution Function (DaSD)
- 5.1. Statistical Models
- 5.2. Phenomenological Models
- 5.2.1. Bell-Shape
- 5.2.2. U-Shape
- 5.2.3. M-Shape
- 6. Analysis of Different Models for Fluid Particle Coalescence Kernel.
- 6.1. Models for Collision Frequency h(xi1, xi2)
- 6.1.1. Collisions Due to Turbulent Velocity Fluctuations
- 6.1.2. Collisions Due to Other Mechanisms
- 6.2. Models for Coalescence Efficiency η(xi1, xi2)
- 6.2.1. Energy Model
- 6.2.2. Critical Approach Velocity Model
- 6.2.3. Film Drainage Model
- 6.2.3.1. Nondeformable Particles With Immobile Interfaces
- 6.2.3.2. Deformable Particles With Immobile Interfaces
- 6.2.3.3. Deformable Particles With Partially Mobile Interfaces
- 6.2.3.4. Deformable Particles With Fully Mobile Interfaces
- 6.2.4. Other Models for Contaminated Systems
- 6.3. Comparison Among Different Models for Coalescence Kernels
- 7. Conclusions
- References
- Index
- Back Cover.