Offers a systematic and unified approach to the classical theories and recent techniques of multilayered aquifer systems. Clarifies governing principles and facilitates industrial problem solving. Uses the automated numerical Laplace inversion procedure to simplify mathematical materials.

This reference/text offers a systematic and unified approach to the classical theories and recent techniques of multilayered aquifer systems-clarifying governing principles and facilitating industrial problem solving. Uses the automated numerical Laplace inversion procedure to simplify mathematical material Multilayered Aquifer Systems progresses from the non-leaky and leaky aquifers of Theis, Cooper-Jacob, Jacob-Lohman, Papadopulos-Cooper, Hantush-Jacob, and Hantush-Neuman to the multilayer aquifer theory of Neuman-Witherspoon-Herrera treats sensitivity and stochastic analyses utilizes the latest computer methods for parameter determination examines groundwater with fractured aquifers encourages application of theories by supplying specialized tools based on Fortran programs and macro packages for MathematicaT and much more Referenced and illustrated with over 860 literature citations, drawings, and tables, Multilayered Aquifer Systems is an excellent reference and self-study companion for civil, environmental, groundwater, water supply and resource, and agricultural engineers; hydrogeologists and geologists; and an invaluable text for graduate and continuing-education students in these disciplines.

In many parts of the world, groundwater resources are under increasing threat from growing demands, wasteful use, and contamination. To face the challenge, good planning and management practices are needed. A key to the management of groundwater is the ability to model the movement of fluids and contaminants in the subsurface. The purpose of this book is to construct conceptual and mathematical models that can provide the information required for making decisions associated with the management of groundwater resources, and the remediation of contaminated aquifers. The basic approach of this book is to accurately describe the underlying physics of groundwater flow and solute transport in heterogeneous porous media, starting at the microscopic level, and to rigorously derive their mathematical representation at the macroscopic levels. The well-posed, macroscopic mathematical models are formulated for saturated, single phase flow, as well as for unsaturated and multiphase flow, and for the transport of single and multiple chemical species. Numerical models are presented and computer codes are reviewed, as tools for solving the models. The problem of seawater intrusion into coastal aquifers is examined and modeled. The issues of uncertainty in model input data and output are addressed. The book concludes with a chapter on the management of groundwater resources. Although one of the main objectives of this book is to construct mathematical models, the amount of mathematics required is kept minimal.

This book covers theoretical and experimental findings at the interface between fluid mechanics, heat transfer and energy technologies. It reports on the development and improvement of numerical methods and intelligent technologies for a wide range of applications in mechanical, power and materials engineering. It reports on solutions to modern fluid mechanics and heat transfer problems, on strategies for studying and improving the dynamics and durability of power equipment, discussing important issues relating to energy saving and environmental safety. Gathering selected contributions to the XIV International Conference on Advanced Mechanical and Power Engineering (CAMPE 2021), held online on October 18-21, 2021, from Kharkiv, Ukraine, this book offers a timely update and extensive information for both researchers and professionals in the field of mechanical and power engineering.

In many parts of the world, groundwater resources are under increasing threat from growing demands, wasteful use, and contamination. To face the challenge, good planning and management practices are needed. A key to the management of groundwater is the ability to model the movement of fluids and contaminants in the subsurface. The purpose of this book is to construct conceptual and mathematical models that can provide the information required for making decisions associated with the management of groundwater resources, and the remediation of contaminated aquifers. The basic approach of this book is to accurately describe the underlying physics of groundwater flow and solute transport in heterogeneous porous media, starting at the microscopic level, and to rigorously derive their mathematical representation at the macroscopic levels. The well-posed, macroscopic mathematical models are formulated for saturated, single phase flow, as well as for unsaturated and multiphase flow, and for the transport of single and multiple chemical species. Numerical models are presented and computer codes are reviewed, as tools for solving the models. The problem of seawater intrusion into coastal aquifers is examined and modeled. The issues of uncertainty in model input data and output are addressed. The book concludes with a chapter on the management of groundwater resources. Although one of the main objectives of this book is to construct mathematical models, the amount of mathematics required is kept minimal.

For a numerical method, its stability is a crucial issue in the sense that an unstable algorithm can render it useless in practical computation. For an over-determined linear algebraic equation , its stability is typically evaluated by using the traditional condition number, Cond= , where and are the maximal and the minimal singular values of matrix , respectively. In this book, the concept of an effective condition number, Cond_eff= , is introduced. Cond_eff is smaller, and generally much smaller, than Cond, and is a better stability criterion. The Cond_eff can be used as an estimation on stability for the numerical solutions of partial differential equations (PDEs) using algorithms, such as the collocation Trefftz method, the spectral method, the finite difference method, and the finite element method. An analysis of stability integrated with errors is the focus of this book.

Approximately 70% of the world's population lives in coastal areas, and the majority of these people depend on coastal aquifers for freshwater. The fragility of these aquifers and their sensitivity to human activity demand informed, competent management to guarantee their survival. Significant knowledge and new technologies related to the subject have accumulated in the last two decades, and a need has emerged for a comprehensive reference that gathers and disseminates crucial information to engineering practitioners and policymakers.

Coastal Aquifer Management-Monitoring, Modeling, and Case Studies provides the most advanced and up-to-date methods and tools for the study and protection of coastal aquifers. This "how-to" volume presents a worldwide perspective with contributions from an international panel of experts. They address topics such as geohydrology, optimization, uncertainty analysis, and GIS as they relate to geographically-specific case studies; knowledge from these examples can be applied to aquifer issues in other regions.

A companion CD-ROM supplements the text with programs and graphics, making this overview an indispensable reference and tool for the analysis of critical freshwater resources.