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Computational Methods in the Management of Hydro-Environmental Systems

Computational Methods in the Management of Hydro-Environmental Systems

V. Nassehi | D. B. Das

(2007)

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Book Details

Abstract

This book provides concise, up-to-date and easy-to-follow information on an increasingly important area of hydro-environmental analysis and management. It covers important aspects of both surface and subsurface water quality management, as they are inseparable components of aquifers and the flow in physical domains occur in combination with the other. However, the main emphasis of the book is on the practical development and application of computer based algorithms, via appropriate schemes, to realistic problems. Mathematical theories are not discussed as they can be found in many expert books. 
All sections of the book include detailed descriptions of practical examples. It also, uniquely, gives explanations regarding the formulation of practical management schedules and tools for hydro-environmental systems. There is a lack of books dealing with the practical aspects of the application of computer modelling techniques to complex hydrodynamical phenomena, and this book has been written for professionals and researchers, especially those who are not trained mathematicians who, nevertheless, need to make managerial decisions.  
Computational Methods in the Management of Hydro-Environmental Systems will be an invaluable source of information for post-graduate level researchers and decision-makers who need to apply numerical modelling techniques to investigate hydrodynamic phenomena and pollutants dispersion in natural aquatic systems. Professionals and engineers, who now need to gain insights about the working of computer techniques for choosing appropriate schemes and applying them to realistic problems, will also value this work. Masters' level and final-year graduate students are also expected to benefit from the book. 

Table of Contents

Section Title Page Action Price
Contents vi
Dedication ix
Preface x
Acknowledgements xii
1 Hydro-environmental Systems 1
1.1 Estuary Classification 2
1.2 River Classification 4
1.3 Coastal Zone Classifications 6
1.4 Classification of Underground Systems 7
1.5 Purpose and the structure of the book 8
References 9
2 Mathematical Models: Governing equations and main solution techniques 11
2.1 Main Concepts 11
2.2 Equations Representing Open Channel Flow 13
2.3 Equations Representing Underground Flow 28
2.4 Pollutants Transport Equation in Hydro-Environmental Flow systems 34
2.5 Main Solution Techniques 39
2.5.1 Finite Difference Method 39
2.5.2 Weighted Residuals Finite Element Method 41
2.5.3 Finite Volume Method 49
References 54
3 Computer Modelling of Hydrodynamics and Pollutants Transport in open channel flow domains 56
3.1 Main Concepts 56
3.2 Modelling schemes of shallow estuaries 57
3.2.1 Long and narrow estuaries: one-dimensional hydrodynamic models 57
3.2.2 Long and narrow estuaries: one-dimensional pollutant transport models 80
3.2.3 Long and wide estuaries: two-dimensional hydrodynamic models 85
3.2.4 Long and wide estuaries: Two-dimensional pollutant transport models 97
3.2.5 Modelling of relatively deep estuaries and coastal zones using a spectral expansion technique 102
3.2.6 Modelling of deep estuaries and coastal zones using three dimensional finite volume technique 106
References 110
4 Computer Simulations - Flood Routing, Estuarine Hydrodynamics, Solute Transport and Effluent Discharge Policies 113
4.1 Flood routing in River Tees 114
4.2 Modelling of tidal dynamics in the Tay Estuary 119
4.3 Modelling of salt intrusion in the Tay Estuary 139
4.4 Modelling of heavy metal distribution in the Fal Estuary 145
4.5 Modelling of solute distribution in a coastal zone using the Random Walk approach 147
4.6 Modelling of tidal dynamics in the upper Milford-Haven Estuary 152
4.7 Modelling of solute dispersion in the Upper Milford-Haven Estuary 156
4.8 Formulation of an effluent discharge policy for the Upper Milford-Haven Estuary 159
4.9 Modelling of salt intrusion into the Upper Milford-Estuary using two-dimensional moving boundary Lagrange-Galerkin scheme 165
References 168
5 Underground Flow Systems Including Coupled Free and Porous Regimes 171
5.1 Main Concepts 171
5.2 Characterisation of subsurface water systems 172
5.3 Modelling of Underground Flow 173
5.4 Coupled Free and Porous Flow 188
5.4.1 Modelling of surface/unsaturated subsurface flow systems 189
5.4.2 Modelling of coupled free/saturated porous flow 197
5.5 Some standard algorithms used for the simulation of coupled free/saturated porous flow systems 204
5.5.1 Treatment of convection dominated regimes 206
5.5.2 Treatment of open boundaries 207
5.5.3 A finite element scheme for coupling free and saturated porous flow processes 208
5.6 A three-dimensional finite volume scheme for coupled free/saturated porous flow processes in heterogeneous porous domains 214
5.6.1 Dimensionless groups and working equations in non-dimensional form 215
5.6.2 Hydrodynamic equations for free flow region 216
5.6.3 Hydrodynamic equations for porous flow region 225
5.7 Solute transport mechanism in groundwater 236
5.8 A three-dimensional finite volume scheme for contaminants transport 242
5.9 Application of computer models of coupled free and porous flow processes in the computer aided design of permeable reactive barriers for underground water treatment 247
References 252
6 Hydroinformatics : an introduction 256
6.1 Main Concepts 256
6.2 Hydroinformatics 257
6.3 Some typical examples of Hydroinformatics methodologies 258
References 272
Index 274