Permeability Calculated From Desaturation Data
An equation is presented for calculating saturated permeability from capillary pressure-desaturation data. The use of this equation along with the relative permeability equations of Brooks...

Barriers for Preventing Interceptor Drain Losses
The effectiveness of an interceptor drain is reduced if part of the water is allowed to bypass the drain as saturated flow in the material below the drain or as unsaturated flow above...

Two-Dimensional Dispersion
The dispersion of a pollutant solution in a flow through a porous medium was investigated. A theoretical solution was obtained for the general, two-dimensional, convective-dispersion equation...

Two Solutions of Free-Surface Flow in Porous Media
The movement of the decaying free-surface mound over an aquifer of infinite depth is investigated. Because the problem involves the solution of Laplace equation with a nonlinear boundary...

Laminar Flow Between Porous Disks
The equation of motion for steady, incompressible, axially symmetric flow between parallel porous disks have been solved. The flow is entirely the result of either suction or injection...

Dispersion from Sources in Nonuniform Seepage Flow
The concentration distribution due to dispersion of contaminant from a line source or a point source in a nonuniform flow through a porous medium is found to be described by rather simple...

Free Surface Flow in Porous Media
A nonlinear theory is given for steady, two-dimensional seepage from a series of triangular channels and from a single triangular channel into permeable soil underlain at a finite depth...

The validity of numerical solutions of nonsteady-state, one-dimensional, vertical drainage problems was evaluated by comparison with experimental data. Experimental data included simultaneous...

Wastewater Recharge and Dispersion in Porous Media
For steady flow between a recharging and a pumping well, in an infinite, confined aquifer of homogeneous, isotropic media, theoretical expressions are developed for the spatial and temporal...

Darcy Flow Solutions with a Free Surface
The flow of liquids through porous media is treated as a generalized case of Darcy's Law by dividing the body into finite elements and satisfying continuity of flow and pressure equilibrium...

Similitude for Drainage of Soils
The similarity condition was applied to nonsteady flow of liquids in partially saturated porous media. Inspectional analysis was applied to the differential equation describing two-phase...

Dispersion in Layered Porous Media
Analytical solutions have been obtained to two problems of dispersion in a layered porous medium. The solution for longitudinal dispersion in flow perpendicular to the layers is given...

Solution of Diffusion Equation
The nonlinear diffusion equation governing the unsteady and unsaturated one-dimensional flow in porous media is solved numerically by using the linearized form of transformed, ordinary...

Deep Well Waste Injection - Reaction with Aquifer Water
Deep-well injection is a promising method for permanently storing some liquid wastes. The influence of reactions between injected and interstitial waters on aquifer permeability is a problem...

Experiments on Lateral Dispersion in Porous Media
Experiments are carried out to determine the coefficient, D, of lateral dispersion in flow through porous media, with values of R between 0.3...

Resistance to Laminar Flow Through Porous Media
The equations for laminar flow through porous media for the linear and nonlinear regimes, are derived from a consideration of the hydrodynamic drag forces on individual particles. The...

Properties of Porous Media Affecting Fluid Flow
Following the Burdine approach, based on a model developed by Wyllie and Spangler, a theory is presented that develops the functional relationships among saturation, pressure difference,...

Similitude for Drainage of Soils

Shock and Reflection in a Nonlinear Medium
One-dimensional shock wave propagation and reflection phenomena in a nonlinear medium are investigated. The medium is of decreasing compressibility, its stress-strain curve has a general...

Initial Motion Problem in Porous Media
The Lagrangian equations of fluid mechanics are used to solve the problem of rapid drawdown adjacent to a steep earth embankment. The equations are solved for the pressure and the shape...