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Hydrodynamics of Time–Periodic Groundwater Flow: Diffusion Waves in Porous Media (Geophysical Monograph Series)

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en Limba Engleză Carte Hardback – 13 Jan 2017

Hydrodynamics of Time-Periodic Groundwater Flow introduces the emerging topic of periodic fluctuations in groundwater. While classical hydrology has often focused on steady flow conditions, many systems display periodic behavior due to tidal, seasonal, annual, and human influences. Describing and quantifying subsurface hydraulic responses to these influences may be challenging to those who are unfamiliar with periodically forced groundwater systems. The goal of this volume is to present a clear and accessible mathematical introduction to the basic and advanced theory of time-periodic groundwater flow, which is essential for developing a comprehensive knowledge of groundwater hydraulics and groundwater hydrology.

Volume highlights include:

  • Overview of time-periodic forcing of groundwater systems
  • Definition of the Boundary Value Problem for harmonic systems in space and time
  • Examples of 1-, 2-, and 3-dimensional flow in various media
  • Attenuation, delay, and gradients, stationary points and flow stagnation
  • Wave propagation and energy transport

Hydrodynamics of Time-Periodic Groundwater Flow presents numerous examples and exercises to reinforce the essential elements of the theoretical development, and thus is eminently well suited for self-directed study by undergraduate and graduate students. This volume will be a valuable resource for professionals in Earth and environmental sciences who develop groundwater models., including in the fields of groundwater hydrology, soil physics, hydrogeology, geoscience, geophysics, and geochemistry. Time-periodic phenomena are also encountered in fields other than groundwater flow, such as electronics, heat transport, and chemical diffusion. Thus, students and professionals in the field of chemistry, electronic engineering, and physics will also find this book useful.

Read an interview with the editors to find out more:
https: //eos.org/editors-vox/a-foundation-for-modeling-time-periodic-groundwater-flow

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Specificații

ISBN-13: 9781119133940
ISBN-10: 1119133947
Pagini: 324
Dimensiuni: 219 x 287 x 22 mm
Greutate: 0.95 kg
Editura: Wiley
Seria Geophysical Monograph Series

Locul publicării: Hoboken, United States

Public țintă

The volume is intended to be used primarily for self–directed study by advanced undergraduate and graduate students, and by working scientists and engineers, in the earth and environmental sciences.
This reference text is suitable for well–prepared beginners in hydrogeology, geoscience and geophysics, and for those who have been introduced to periodic groundwater flow in the distant past and wish to renew their knowledge and enrich their understanding. Additionally, we hope that this book will be a useful resource for educators. The mathematical framework for time–periodic groundwater flow is structurally equivalent to that of time–periodic diffusion. Therefore, some of the theory presented in this volume may be relevant to time–periodic phenomena encountered in fields other than groundwater flow, like electrical conduction, thermal conduction, and molecular diffusion. Consequently, it is expected that students and professionals in these other fields, such as physics, chemistry and engineering will also find parts of this book useful.

[Note: Editors assume that the reader has completed university courses in multivariable calculus, linear algebra, and subsurface uid dynamics (e.g., groundwater hydraulics). Also, the reader should have a basic familiarity with complex variables, Fourier series, and partial differential equations (PDEs). Readers don′t need to know contour integration in the complex plane or Green functions.]

Cuprins

Preface vii
Notation xi
Acknowledgments xvii
Part I: Introduction 1
1 Introduction 3
Part II: Problem Definition 7
2 Initial Boundary Value Problem for Hydraulic Head 9
3 Hydraulic Head Components and Their IBVPs 13
4 Periodic Transient Components 15
5 BVP for Harmonic Constituents 21
6 Polar Form of Space BVP 29
7 Complex–Variable Form of Space BVP 37
8 Comparison of Space BVP Forms 43
Part III: Elementary Examples 45
9 Examples: 1D Flow in Ideal Media 47
10 Examples: 1D Flow in Exponential Media 63
11 Examples: 1D Flow in Power Law Media 89
12 Examples: 2D and 3D Flow in Ideal Media 95
13 Examples: Uniform–Gradient Flow 107
Part IV: Essential Concepts 121
14 Attenuation, Delay, and Gradient Collinearity 123
15 Time Variation of Specific–Discharge Constituent 131
Part V: Stationary Points 149
16 Stationary Points: Basic Concepts 151
17 Stationary Points: Amplitude and Phase 157
18 Flow Stagnation 171
Part VI: Wave Propagation 181
19 Harmonic, Hydraulic Head Waves 183
20 Wave Distortion 199
21 Waves in One Dimension 215
22 Wave Equation 225
Part VII: Energy Transport 231
23 Mechanical Energy of Groundwater 233
24 Mechanical Energy: Time Averages 239
25 Mechanical Energy of Single–Constituent Fields 249
Part VIII: Conclusion 261
26 Conclusion 263
Part IX: Appendices 269
A Hydraulic Head Components 271
B Useful Results from Trigonometry 273
C Linear Transformation of Space Coordinates 275
D Complex Variables 281
E Kelvin Functions 283
Bibliography 291
Index 295

Notă biografică

Todd Rasmussen is a Professor of Hydrology and Water Resources at the University of Georgia (UGA). He is a member of the Faculty of Water Resources, the Faculty of Engineering, and the Academy of the Environment at UGA. He is an associate editor for the Journal of Hydrology, and has been an associate editor for Water Resources Research and Hydrogeology Journal. He received his PhD from the Department of Hydrology and Water Resources, College of Engineering and Mines, at the University of Arizona in 1988. His publications focus on uid ow and contaminant transport through surface and subsurface environments, including the physical, chemical, mathematical, and statistical description and quantification of hydrologic processes. He was a co–author of the AGU Geophysical Monograph 42 (Evans et al., 2001) as well as multiple journal articles specifically related to subsurface periodic behavior (Toll and Rasmussen, 2007; Rasmussen and Mote, 2007; Rasmussen et al., 2003).
Joe Depner graduated with an M.S. from the Department of Hydrology and Water Resources at the University of Arizona in 1985. His thesis topic was Estimation of the three–dimensional anisotropic spatial covariance of log permeability using single–hole and cross–hole packer test data from fractured granites, under the direction of Professor Shlomo P. Neuman, which was subsequently published (Neuman and Depner, 1988). He has also published on the topic of periodic flow in groundwater (Depner, 2000). He has worked professionally for multiple private consulting services and for Pacific Northwest National Laboratory in Hanford, WA.