'Turbulence in Porous Media' introduces the reader to the characterisation of turbulent flow, heat and mass transfer in permeable media, including analytical data and a review of available experimental data. Such transport processes occurring a relatively high velocity in permeable media, are present in a number of engineering and natural flows. De Lemos has managed to compile, detail, compare and evaluate available methodologies for modelling simulating purposes, providing an essential tour for engineering students working within the field. - The hotly debated topic of heterogeneity and flow turbulence has never before been addressed in book format. - Offers an experimental approach to turbulence in porous media as it discusses disciplines that have been traditionally developed apart from each other. The hotly debated topic of heterogeneity and flow turbulence has never before been addressed in book format. Offers an experimental approach to turbulence in porous media as it discusses disciplines that have been traditionally developed apart from each other.
Author(s): Marcelo J.S. de Lemos
Edition: 1
Year: 2006
Language: English
Pages: 368
Front cover......Page 1
Title page......Page 4
Copyright page......Page 5
Preface......Page 8
Overview......Page 10
Table of contents......Page 12
List of Figures......Page 14
List of Tables......Page 24
Latin Characters......Page 26
Greek Symbols......Page 30
Special Characters......Page 31
Superscripts......Page 32
Part One Modeling......Page 34
1.1 Overview of Porous Media Modeling......Page 36
1.2 Overview of Turbulence Modeling......Page 42
1.3 Turbulent Flow in Permeable Structure......Page 49
2.1 Local Instantaneous Governing Equations......Page 52
2.2 The Averaging Operators......Page 54
2.3 Time Averaged Transport Equations......Page 58
2.4 Volume Averaged Transport Equations......Page 59
3.1 Basic Relationships......Page 62
3.2 Classification of Macroscopic Turbulence Models......Page 65
4.1 Momentum Equation......Page 68
4.2 Turbulent Kinetic Energy......Page 74
4.3 Macroscopic Turbulence Model......Page 78
5.1 Macroscopic Energy Equation......Page 88
5.2 Thermal Equilibrium Model......Page 91
5.3 Thermal Non-Equilibrium Models......Page 106
5.4 Macroscopic Buoyancy Effects......Page 120
6.1 Mean Field......Page 124
6.2 Turbulent Mass Dispersion......Page 126
6.3 Macroscopic Transport Models......Page 127
6.4 Mass Dispersion Coefficients......Page 129
7.1 Introduction......Page 146
7.2 Macroscopic Double-Diffusion Effects......Page 148
7.3 Hydrodynamic Stability......Page 152
Part Two Applications......Page 156
8.2 The Need for Iterative Methods......Page 158
8.4 Geometry Modeling......Page 160
8.5 Treatment of the Convection Term......Page 166
8.6 Discretized Equations for Transient Three-Dimensional Flows......Page 170
8.7 Systems of Algebraic Equations......Page 171
8.8 Treatment of the u,w-T Coupling......Page 173
8.9 Treatment of the u,w-V Coupling......Page 188
8.10 Treatment of the u,w-V-T Coupling......Page 198
9.1 Forced Flows in Composite Channels......Page 216
9.2 Channels with Porous and Solid Baffles......Page 246
9.3 Turbulent Impinging Jet onto a Porous Layer......Page 267
9.4 Buoyant Flows......Page 283
9.5 Flow and Heat Transfer in a Back-Step......Page 329
References......Page 346
Index......Page 362
