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Author:   Jens-Dominik Mueller
Publisher:   Taylor & Francis Ltd
Imprint:   CRC Press
Weight:   0.600kg
ISBN:  

9781138401303

ISBN 10:   1138401307
Pages:   238
Publication Date:   18 December 2020
Audience:   College/higher education ,  General/trade ,  Tertiary & Higher Education ,  General
Format:   Hardback
Publisher's Status:   Active
Availability:   In Print  
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Table of Contents

Foreword -- 1 Introduction -- 1.1 CFD, the virtual wind tunnel -- 1.2 Examples of CFD applications -- 1.3 Prerequisites -- 1.4 Literature -- 1.5 Ingredients -- 1.6 Organisation of the chapters -- 1.7 Exercises -- 2 Physical and mathematical principles of modern CFD -- 2.1 The physical model -- 2.1.1 Continuum assumption -- 2.1.2 Lagrangian vs. Eulerian description -- 2.1.3 Conservation principles -- 2.2 The mathematical model: the equations of fluid flow -- 2.2.1 Mass conservation in 1-D -- 2.2.2 Mass conservation in 3-D -- 2.2.3 Divergence and gradient operators, total derivative -- 2.2.4 The total or material derivative -- 2.2.5 The divergence form of the total derivative -- 2.2.6 Reynolds’ transport theorem -- 2.2.7 Transport of a passive scalar -- 2.3 The momentum equations -- 2.3.1 Examples of momentum balance -- 2.3.2 The inviscid momentum equation — the Euler equation -- 2.3.3 The viscous momentum equations — Navier-Stokes -- 2.3.4 The incompressible Navier-Stokes equations -- 2.3.5 Energy balance -- 2.3.6 Summary of properties for the Navier-Stokes equations -- 2.4 Simplified model equations -- 2.4.1 Linear advection equation -- 2.4.2 Inviscid Burgers’ equation -- 2.4.3 Heat equation -- 2.5 Excercises -- 3 Discretisation of the equations -- 3.1 Discretisation of the linear advection equation -- 3.1.1 Finite difference discretisation of linear advection . -- 3.1.2 Solving the finite difference approximation -- 3.1.3 Mesh refinement -- 3.1.4 Finite volume discretisation of the 1-D advection . -- 3.1.5 Solving the finite volume approximation -- 3.1.6 Finite difference vs. finite volume formulations . . -- 3.2 Burgers’ equation: non-linear advection and conservation -- 3.3 Heat equation in 1-D -- 3.3.1 Discretising second derivatives -- 3.3.2 1-D Heat equation, differential form -- 3.3.3 Solving the 1-D heat equation -- 3.4 Advection equation in 2-D -- 3.4.1 Discretisation on a structured grid -- 3.5 Solving the Navier-Stokes equations -- 3.6 The main steps in the finite volume method -- 3.6.1 Discretisation on arbitrary grids -- 3.6.2 Transport through an arbitrary face -- 3.6.3 The concept of pseudotime-stepping -- 3.6.4 Time-stepping for compressible flows -- 3.6.5 Iterative methods for incompressible flows -- 3.6.6 The SIMPLE scheme -- 3.7 Exercises -- 4 Analysis of discretisations -- 4.1 Forward, backward and central differences -- 4.2 Taylor analysis: consistency, first- and second-order accuracy -- 4.2.1 Round-off errors -- 4.2.2 Order of accuracy and mesh refinement -- 4.3 Stability, artificial viscosity and second-order accuracy . . -- 4.3.1 Artificial viscosity -- 4.3.2 Artificial viscosity and finite volume methods -- 4.3.3 Stable second-order accurate discretisations for CFD -- 4.3.4 Monotonicity and second-order accuracy: limiters . -- 4.4 Summary of spatial discretisation approaches -- 4.5 Convergence of the time-stepping iterations -- 4.5.1 Explicit methods -- 4.5.2 Implicit methods -- 4.5.3 Increasing mesh resolution -- 4.5.4 Multigrid -- 4.6 Excercises -- 5 Boundary conditions and flow physics -- 5.1 Selection of boundary conditions -- 5.1.1 Some simple examples -- 5.1.2 Selecting boundary conditions to satisfy the equations -- 5.2 Characterisation of partial differential equations -- 5.2.1 Wave-like solutions: hyperbolic equations -- 5.2.2 Smoothing-type solutions: elliptic equations -- 5.2.3 The borderline case — parabolic equations -- 5.2.4 The domain of dependence, the domain of influence -- 5.2.5 Example of characterisation: surface waves -- 5.2.6 Compressible and incompressible flows -- 5.2.7 Characterisation of the Navier-Stokes equations . . -- 5.3 Choice of boundary conditions -- 5.3.1 Boundary conditions for incompressible flow -- 5.3.2 Boundary conditions for hyperbolic equations -- 5.4 Exercises -- 6 Turbulence modelling -- 6.1 The challenges of turbulent flow for CFD -- 6.2 Description of turbulent flow -- 6.3 Self-similar profiles through scaling -- 6.3.1 Laminar velocity profiles -- 6.3.2 Turbulent velocity profile -- 6.4 Velocity profiles of turbulent boundary layers -- 6.4.1 Outer scaling: friction velocity -- 6.4.2 Inner scaling: non-dimensional wall distance y+ -- 6.5 Levels of turbulence modelling -- 6.5.1 Direct Numerical Simulation (DNS) -- 6.5.2 Reynolds-Averaged Navier-Stokes (RANS) -- 6.5.3 Large Eddy (LES) & Detached Eddy Simulation (DES) -- 6.5.4 Summary of approaches to turbulence modelling . -- 6.6 Eddy viscosity models -- 6.6.1 Mixing length model -- 6.6.2 The Spalart-Allmaras model -- 6.6.3 The k—e model -- 6.7 Near-wall mesh requirements -- 6.7.1 Estimating the wall distance of the first point -- 6.8 Exercises -- 7 Mesh quality and grid generation -- 7.1 Influence of mesh quality on the accuracy -- 7.1.1 Maximum angle condition -- 7.1.2 Regularity -- 7.1.3 Size variation -- 7.2 Requirements for the ideal mesh generator -- 7.3 Structured grids -- 7.3.1 Algebraic grids using transfinite interpolation -- 7.4 Unstructured grids -- 7.4.1 The Advancing Front Method -- 7.4.2 Delaunay triangulation -- 7.4.3 Hierarchical grid Methods -- 7.4.4 Hexahedral unstructured mesh generation -- 7.4.5 Hybrid mesh generation for viscous flow -- 7.5 Mesh adaptation -- 7.5.1 Mesh movement: r-refinement -- 7.5.2 Mesh refinement: h-refinement -- 7.6 Exercises -- 8 Analysis of the results -- 8.1 Types of errors -- 8.1.1 Incorrect choice of boundary conditions -- 8.1.2 Insufficient convergence -- 8.1.3 Artificial viscosity -- 8.1.4 Modelling errors -- 8.2 Mesh convergence -- 8.2.1 Cost of error reduction -- 8.3 Validation -- 8.4 Summary -- 8.5 Exercises -- 9 Case studies -- 9.1 Aerofoil in 2-D, inviscid flow -- 9.1.1 Case description -- 9.1.2 Flow physics -- 9.1.3 Meshes -- 9.1.4 Simulation results for the C-mesh -- 9.1.5 Comparison of C- vs O-mesh -- 9.1.6 Analysis of lift and drag values -- 9.2 Blood vessel bifurcation in 2-D -- 9.2.1 Geometry and flow parameters -- 9.2.2 Flow physics and boundary conditions -- 9.2.3 Velocity and pressure fields -- 9.2.4 Velocity profile in the neck -- 9.2.5 Effect of outlet boundary condition -- 9.3 Aerofoil in 2-D, viscous flow -- 9.3.1 Flow physics -- 9.3.2 Turbulence modelling -- 9.3.3 Flow results -- 9.3.4 Lift and drag -- 10 Appendix -- 10.1 Finite-volume implementation of 2-D advection -- Bibliography -- Index.

Reviews

""The book strikes a good balance between practical advice and mathematically oriented explanations. It covers some of the most important real-life CFD topics in depth, such as the issue of turbulence modeling, meshing, or the choice of the boundary conditions."" Marek Behr, RWTH Aachen University, Germany ""Well written and easy to understand. It describes the basic concepts of accuracy, artificial viscosity and stability in a systematic and logical way. Moreover, the introduction of [artificial] viscosity and flux limiters are rarely found or discussed in the other CFD textbooks. This is an excellent textbook to have for students, lecturers and practicing professionals alike. I would like to have this book on my shelf."" Dr. K. Djidjeli, University of Southampton, UK ""This relatively short book is intended for the user of commercial computational fluid dynamics (CFD) packages, as opposed to the developer of such programs. Müeller (Queen Mary Univ. of London, UK) taught CFD to undergraduate students for many years, and he developed the book to accompany a first course on the topic for aerospace or mechanical engineering students. The first eight chapters emphasize the basic physics and the microscopic description of the mathematical equations of fluid mechanics (both laminar and turbulent) and the description and application of finite element mesh modeling of these equations in the vicinity of various geometrical bodies, with appropriate boundary conditions. The sources of errors and the pros and cons of the various turbulent models are also described. Chapter 9 presents several case studies, and chapter 10, the appendix, is a program for a 2-D finite volume application. A short list of exercises follows each chapter. Students will need a solid grounding in basic fluid mechanics and numerical analysis to follow this text."" CHOICE, July 2016 Issue ""The book strikes a good balance between practical advice and mathematically oriented explanations. It covers some of the most important real-life CFD topics in depth, such as the issue of turbulence modeling, meshing, or the choice of the boundary conditions."" Marek Behr, RWTH Aachen University, Germany ""Well written and easy to understand. It describes the basic concepts of accuracy, artificial viscosity and stability in a systematic and logical way. Moreover, the introduction of [artificial] viscosity and flux limiters are rarely found or discussed in the other CFD textbooks. This is an excellent textbook to have for students, lecturers and practicing professionals alike. I would like to have this book on my shelf."" Dr. K. Djidjeli, University of Southampton, UK ""This relatively short book is intended for the user of commercial computational fluid dynamics (CFD) packages, as opposed to the developer of such programs. Müeller (Queen Mary Univ. of London, UK) taught CFD to undergraduate students for many years, and he developed the book to accompany a first course on the topic for aerospace or mechanical engineering students. The first eight chapters emphasize the basic physics and the microscopic description of the mathematical equations of fluid mechanics (both laminar and turbulent) and the description and application of finite element mesh modeling of these equations in the vicinity of various geometrical bodies, with appropriate boundary conditions. The sources of errors and the pros and cons of the various turbulent models are also described. Chapter 9 presents several case studies, and chapter 10, the appendix, is a program for a 2-D finite volume application. A short list of exercises follows each chapter. Students will need a solid grounding in basic fluid mechanics and numerical analysis to follow this text."" CHOICE, July 2016 Issue

The book strikes a good balance between practical advice and mathematically oriented explanations. It covers some of the most important real-life CFD topics in depth, such as the issue of turbulence modeling, meshing, or the choice of the boundary conditions. Marek Behr, RWTH Aachen University, Germany Well written and easy to understand. It describes the basic concepts of accuracy, artificial viscosity and stability in a systematic and logical way. Moreover, the introduction of [artificial] viscosity and flux limiters are rarely found or discussed in the other CFD textbooks. This is an excellent textbook to have for students, lecturers and practicing professionals alike. I would like to have this book on my shelf. Dr. K. Djidjeli, University of Southampton, UK This relatively short book is intended for the user of commercial computational fluid dynamics (CFD) packages, as opposed to the developer of such programs. Mueller (Queen Mary Univ. of London, UK) taught CFD to undergraduate students for many years, and he developed the book to accompany a first course on the topic for aerospace or mechanical engineering students. The first eight chapters emphasize the basic physics and the microscopic description of the mathematical equations of fluid mechanics (both laminar and turbulent) and the description and application of finite element mesh modeling of these equations in the vicinity of various geometrical bodies, with appropriate boundary conditions. The sources of errors and the pros and cons of the various turbulent models are also described. Chapter 9 presents several case studies, and chapter 10, the appendix, is a program for a 2-D finite volume application. A short list of exercises follows each chapter. Students will need a solid grounding in basic fluid mechanics and numerical analysis to follow this text. CHOICE, July 2016 Issue The book strikes a good balance between practical advice and mathematically oriented explanations. It covers some of the most important real-life CFD topics in depth, such as the issue of turbulence modeling, meshing, or the choice of the boundary conditions. Marek Behr, RWTH Aachen University, Germany Well written and easy to understand. It describes the basic concepts of accuracy, artificial viscosity and stability in a systematic and logical way. Moreover, the introduction of [artificial] viscosity and flux limiters are rarely found or discussed in the other CFD textbooks. This is an excellent textbook to have for students, lecturers and practicing professionals alike. I would like to have this book on my shelf. Dr. K. Djidjeli, University of Southampton, UK This relatively short book is intended for the user of commercial computational fluid dynamics (CFD) packages, as opposed to the developer of such programs. Mueller (Queen Mary Univ. of London, UK) taught CFD to undergraduate students for many years, and he developed the book to accompany a first course on the topic for aerospace or mechanical engineering students. The first eight chapters emphasize the basic physics and the microscopic description of the mathematical equations of fluid mechanics (both laminar and turbulent) and the description and application of finite element mesh modeling of these equations in the vicinity of various geometrical bodies, with appropriate boundary conditions. The sources of errors and the pros and cons of the various turbulent models are also described. Chapter 9 presents several case studies, and chapter 10, the appendix, is a program for a 2-D finite volume application. A short list of exercises follows each chapter. Students will need a solid grounding in basic fluid mechanics and numerical analysis to follow this text. CHOICE, July 2016 Issue

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