SUSTAINABLE DEVELOPMENT
Innovate. Sustain. Transform.
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This book has been divided into two parts, A and B. Part A comprises analytical solutions of about 1100 geohydrological problems in the saturated zone. Classification of the… Read more
SUSTAINABLE DEVELOPMENT
Save up to 30% on top Physical Sciences & Engineering titles!
PART B: MATHEMATICAL TOOLS. I. BASIC PRINCIPLES FOR SATURATED GROUNDWATER FLOW. The continuum approach to groundwater flow. Molecular and microscopic level. Macroscopic level. Dispersion. Mathematical description of geohydrological problems. Equations of motion. Stream functions. Pressure and piezometric head. Darcy's law. Relations between stream functions and potential functions. Equations of motion for diffusion and dispersion. Parameters and variables. Groundwater parameters. Density. Compressibility of water. Modulus of elasticity. Viscosity. Ground parameters. Statistical description of the ground. Porosity. Specific surface. Intrinsic permeability. Soil compressibility and modulus of elasticity. Conductivity coefficients. Isotropic conductivity. Anisotropic conductivity. Resistance to flow in layered soils.
Coefficients of dispersion. Storage coefficients. Elastic and phreatic storage. Barometric sensitivity. Tidal and phreatic sensitivity. Field tests (general description). Continuity equations and differential equations. General continuity equation (without dispersion). Differential equations for homogeneous water without dispersion. Non-steady flow of compressible groundwater through a compressible porous medium. Non-steady flow of incompressible groundwater in a compressible porous medium. Flow through an incompressible porous medium. Steady flow. Differential equations in other coordinate systems. Differential equations for the stream function psi. Injection term in the differential equation. Differential equations for non-homogeneous groundwater without dispersion. Density flow. Rotational flow. Differential equations for dispersion. Initial and boundary conditions. Linear conditions. General. Initial values. Open boundaries. Impervious boundaries. Common boundaries. Boundary conditions for solute concentrations. Non-linear conditions. Phreatic surface. Interface between fluids of different density. The hodograph. II. ANALYTICAL SOLUTION METHODS. Ordinary differential equations. Direct integration. Variation of parameters. Use of matrix functions for solving problems in multi-layer systems. Partial differential equations. Separation of variables. Laplace transformation. Fundamental properties. Some examples of Laplace transforms. Inverse transforms. Fourier transformations. Fourier series and integrals. Finite Fourier transformations. Infinite Fourier transformations. Hankel transformations. Orthogonal functions. Series and integrals of Bessel functions. Finite Hankel transformations. Infinite Hankel transformation. Conformal transformation. Complex analytic functions. Conformal mapping. The quadratic transformation. The Joukowski transformation. The Schwarz--Christoffel transformation. Successive transformations. Survey of integral transformations. Solutions, derived from known solutions. Superposition. Principles. Method of images. Discharge impulses. Hydrological screens. Product solutions. Periodic flow solutions. Solutions in anisotropic soils. Approximate solutions for phreatic flow and for density flow with interface. Phreatic flow. Interface flow. The reciprocity principle. Description and mathematical proof. The reciprocity principle in multi-layer systems. III. FUNCTIONS. Error functions and related functions. Error function. Polder function. Resistance function. The M-function. Exponential integral and related functions. Exponential integral. Hantush's well function. Bessel functions and related functions. Bessel functions J and Y. Modified Bessel functions I and K. Complex functions. Series of Bessel functions. Integrals of Bessel functions. Gamma function and hypergeometric function. Gamma function and related functions. Hypergeometric function. Elliptic integrals.
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