2 edition of Energy concepts for the computation of transient saturated-unsaturated flow in porous media. found in the catalog.
Energy concepts for the computation of transient saturated-unsaturated flow in porous media.
Asitha P.R.* Seneviratne
Written in English
|The Physical Object|
|Number of Pages||197|
4. Porous Media Applications in the Energy Sector. In this section, the above-reviewed knowledge on gas and liquid flow at micro- to nanoscale is used to critically examine the modeling gaps in four different porous media applications from the energy sector and how that can be by: 3. ment of saturated-unsaturated transient flow in small nonhomogeneous, anisotropic geologic basins. The uniqueness of the model lies in its inclusion of the unsaturated zone in a basin wide model that can also handle both confined and unconfined s•aturated aquifers, under both File Size: 1MB.
On the Theoretical Prediction of Transient Heat Transfer Within a Rectangular Fluid-Saturated Porous Medium Enclosure J. L. Lage Mechanical Engineering Department, Southern Methodist University, Dallas, TX Cited by: In physics and engineering, fluid dynamics is a subdiscipline of fluid mechanics that describes the flow of fluids—liquids and gases. It has several subdisciplines, including aerodynamics and hydrodynamics. Fluid dynamics has a wide range of applications, including calculating forces and moments on aircraft, determining the mass flow rate of petroleum through pipelines, predicting weather patterns, understanding nebulae in interstellar space and modelling fission weapon detonation. Fluid.
Fundamentals of unsaturated flow. The most basic measure of the water in an unsaturated medium is water content or wetness (commonly symbolized q), defined as the volume of water per bulk volume of the medium. Water is held in an unsaturated medium by forces whose effect is expressed in terms of the energy state or pressure of the water. The XDLVO energy profiles between the GO particles (Fig. 1a) show strong primary energy barriers higher than 7 mJ/m 2 (i.e., kT/nm 2) for all three ionic strength conditions, which is hard to overcome because the diameter of the GO particles was 1–5 μm (as reported by the manufacture).Thus, it can be concluded that, under the experimental conditions tested, aggregations of GO particles Cited by:
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This Special Issue focuses on recent advances and future developments in the modeling of flow, mass and heat transfer in porous media. This includes, but is not limited to: saturated/unsaturated flow, multiphase flow, multicomponent reactive transport, heat transfer and coupled hydraulic, thermal, mechanical, chemical and biological processes.
The book focuses on two issues related to mathematical and numerical modelling of flow in unsaturated porous media. In the first part numerical solution of the governing equations is discussed, with particular emphasis on the spatial discretization of highly nonlinear permeability coefficient.
TheBrand: Springer-Verlag Berlin Heidelberg. Up to this point, the concepts of water flow and hydraulic conductivity have been developed with regard to a saturated porous medium. Now, let's discuss the concept for unsaturated flow conditions in porous media.
In the vadose zone, hydraulic conductivity is not only a function of fluid and media properties, but also the soil-water content. A.R. Khoei and T. Mohammadnejad, Numerical modeling of multiphase fluid flow in deforming porous media: A comparison between two- and three-phase models for seismic analysis of earth and rockfill dams, Computers and Geotechnics, 38, 2, (), ().Cited by: Abstract.
This chapter deals with the finite element solutions for variably saturated porous media (unsaturated-saturated flow). The different formulations of Richards equations with the favorite solution strategies, including the computation of Cited by: 1. THM phenomena in saturated and unsaturated porous media 13 As pointed ou t before, the total i nternal energy per unit volume of a po rous medium is computed by simply adding the intern al energy.
This model is developed under an XFEM approach in the framework of hydromechanical couplings for a fully saturated porous medium. Physical model. Let us consider a domain Ω ⊂ R 2 entirely cut by a discontinuity Γ c. The porous medium is supposed to be fully saturated with a single-fluid phase and fluid flow occurs in the crack.
RETRASO, a code for modeling reactive transport in saturated and unsaturated porous media The code RETRASO (REactive TRAnsport of SOlutes) simulates reactive transport of. Nonprofit organizations are suffering from the continuing economic downturn.
Donations are decreasing while demand for services is growing, forcing these organizations to be increasingly efficient and effective with their funds.
This book introduces the reader to the basic concepts of project management. It provides approaches and templates to help nonprofit managers quickly implement /5(2). The physical model used to simulate flow through porous media involves the principle of mass conservation and a constitutive equation that accounts for the conservation of momentum.
Narasimhan, T. and Witherspoon, P. “Numerical model for saturated-unsaturated flow in deformable porous media Theory.” Water Resources Research, 13 (3) Cited by: 5.
Stochastic Methods for Flow in Porous Media: Coping with Uncertainties explores fluid flow in complex geologic environments. The parameterization of uncertainty into flow models is important for managing water resources, preserving subsurface water quality, storing energy and wastes, and improving the safety and economics of extracting subsurface mineral and energy resources.5/5(1).
This article presents model concepts for the coupling of one-phase compositional non-isothermal Navier-Stokes flow to two-phase compositional non-isothermal Darcy flow in a finite volume framework.
The focus of the presented coupling conditions is on defining appropriate conditions for momentum transfer without introducing additional degrees of Cited by: 5.
Coupled Thermohydroelasticity Phenomena in Variably Saturated Fractured Porous Rocks --Formulation and Numerical Solution Jahan Noorishad and Chin-Fu Tsang Earth Sciences Division, Ernest Orlando Lawrence Berkeley National Laboratory, One Cyclotron Road, Berkeley, California Abstract The physicochemical environment of geologic systems is Cited by: On the mechanical energy and effective stress in saturated and unsaturated porous continua.
International Journal of Solids and Structures, 43(6), Three-dimensional, transient, saturated-unsaturated flow in a groundwater basin. Water Resources Research, 7(2), pp. Influence of the unsaturated flow domain on seepage through.
Models for thermo-hydro-mechanical behavior of saturated/unsaturated porous media are reviewed. The necessary balance equations are derived using averaging theories. Constitutive equations are obtained using the Coleman-Noll procedure and thermodynamic equations for the model closure are by: - Henri Darcy, a French hydraulic engineer, concluded that the rate of flow of a fluid through a porous media is directly proportional to the energy loss and inversely proportional to the length of the path of flow ().
o First quantitative characterization of groundwater flow. A detailed theory describing the simultaneous transfer of heat, water, and solute in unsaturated porous mediais developed. The theory includes three fully-coupledpartial differential equations. Heat, Cited by: () Energy stable numerical methods for porous media flow type problems.
Oil & Gas Science and Technology – Revue d’IFP Energies nouvel () Nonlinear Effects on the Convergence of Picard and Newton Iteration Methods in the Numerical Solution of One-Dimensional Variably Saturated–Unsaturated Flow by:. Flow of Homogeneous Fluids in Saturated Porous Media Flow of Nonhomogeneous Fluids in Saturated Porous Media Saturated-Unsaturated Flows Saturated-Unsaturated Flow of a Single Fluid Saturated-Unsaturated Transport References Chapter 6 Lakes Introduction The Equations Which Describe the Flow Simplified Flow ModelBook Edition: 1.A Finite-Element Simulation Model for Saturated-Unsaturated, Fluid-Density-Dependent Ground-Water Flow with Energy Transport or Chemically-Reactive Single Species Solute Transport.
(UNCLASSIFIED) SUTRA flow simulation may be employed for Cited by: A three‐dimensional finite difference model has been developed for the treatment of saturated‐unsaturated transient flow in small nonhomogeneous, anisotropic geologic basins.
The uniqueness of the Cited by: