Modelling Water Flow in Unsaturated Porous Media

Modelling Water Flow in Unsaturated Porous Media PDF Author: Adam Szymkiewicz
Publisher: Springer Science & Business Media
ISBN: 3642235581
Category : Science
Languages : en
Pages : 254

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Book Description
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. The second part deals with large scale flow in heterogeneous porous media of binary structure. Upscaled models are developed and it is shown that the presence of material heterogeneities may give rise to additional non-equilibrium terms in the governing equations or to hysteresis in the averaged constitutive relationships.

Modelling Water Flow in Unsaturated Porous Media

Modelling Water Flow in Unsaturated Porous Media PDF Author: Adam Szymkiewicz
Publisher: Springer Science & Business Media
ISBN: 3642235581
Category : Science
Languages : en
Pages : 254

Get Book

Book Description
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. The second part deals with large scale flow in heterogeneous porous media of binary structure. Upscaled models are developed and it is shown that the presence of material heterogeneities may give rise to additional non-equilibrium terms in the governing equations or to hysteresis in the averaged constitutive relationships.

Modelling Water Flow in Unsaturated Porous Media

Modelling Water Flow in Unsaturated Porous Media PDF Author: Adam Szymkiewicz
Publisher: Springer Science & Business Media
ISBN: 364223559X
Category : Science
Languages : en
Pages : 254

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Book Description
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. The second part deals with large scale flow in heterogeneous porous media of binary structure. Upscaled models are developed and it is shown that the presence of material heterogeneities may give rise to additional non-equilibrium terms in the governing equations or to hysteresis in the averaged constitutive relationships.

Modelling Water Flow in Unsaturated Porous Media

Modelling Water Flow in Unsaturated Porous Media PDF Author: Adam Szymkiewicz
Publisher: Springer
ISBN: 9783642426582
Category : Science
Languages : en
Pages : 0

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Book Description
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. The second part deals with large scale flow in heterogeneous porous media of binary structure. Upscaled models are developed and it is shown that the presence of material heterogeneities may give rise to additional non-equilibrium terms in the governing equations or to hysteresis in the averaged constitutive relationships.

FEMWATER

FEMWATER PDF Author: G. T. Yeh
Publisher:
ISBN:
Category : Hydraulic models
Languages : en
Pages : 153

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Book Description


The Green Element Method

The Green Element Method PDF Author: Akpofure E. Taigbenu
Publisher: Springer Science & Business Media
ISBN: 1475767382
Category : Science
Languages : en
Pages : 364

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Book Description
Most texts on computational methods are borne out of research activities at postgraduate study programs, and this is no exception. After being introduced to the boundary element method (BEM) (then referred to as the boundary integral equation method (BIEM)) in 1981 by Prof. Jim Liggett of Cornell University, a number of graduate students and myself under his supervision took active interest in the development of the theory and its application to a wide range of engineering problems. We certainly achieved some amount of success. A personal desire to have a deeper understanding and appreciation of computational methods prompted one to take related courses in fmite deference method, and to undertake a self-instructed study of variational and fmite element methods. These exposures were not only quite instructive but fruitful, and may have provided the motivation for the current research on the Green element method (GEM) - a name coined by Prof. Liggett in 1987 during my visit as Professor to the School of Civil & Environmental Engineering, Cornell University. The main objectives of this text are to serve as an instructional material to senior undergraduate and first year graduate students undertaking a course in computational methods, and as a resource material for research scientists, applied mathematicians, numerical analysts, and engineers who may wish to take these ideas to other frontiers and applications.

Modelling of Flow and Transport in Fractal Porous Media

Modelling of Flow and Transport in Fractal Porous Media PDF Author: Jianchao Cai
Publisher: Elsevier
ISBN: 0128177985
Category : Science
Languages : en
Pages : 274

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Book Description
This important resource explores recent theoretical advances and modelling on fluids transport in fractal porous systems and presents a systematic understanding of the characterization of complex microstructure and transport mechanism in fractal porous media. Modelling of Flow and Transport in Fractal Porous Media shows how fractal theory and technology, combined with other modern experiments and numerical simulation methods, will assist researchers and practitioners in modelling of transport properties of fractal porous media, such as fluid flow, heat and mass transfer, mechanical characteristics, and electrical conductivity. Presents the main methods and technologies for transport characterization of fractal porous media, including soils, reservoirs and artificial materials Provides the most recent theoretical advances in modelling of fractal porous media, including gas and vapor transport in fibrous materials, nonlinear seepage flow in hydrocarbon reservoirs, mass transfer of porous nanofibers, and fractal mechanics of unsaturated soils Includes multidisciplinary examples of applications of fractal theory to aid researchers and practitioners in characterizing various porous media structures

FEMWATER

FEMWATER PDF Author: G. T. Yeh
Publisher:
ISBN:
Category : Hydraulic models
Languages : en
Pages : 3

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Book Description


Conceptual Models of Flow and Transport in the Fractured Vadose Zone

Conceptual Models of Flow and Transport in the Fractured Vadose Zone PDF Author: National Research Council
Publisher: National Academies Press
ISBN: 0309073022
Category : Science
Languages : en
Pages : 399

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Book Description
Fluid flow and solute transport within the vadose zone, the unsaturated zone between the land surface and the water table, can be the cause of expanded plumes arising from localized contaminant sources. An understanding of vadose zone processes is, therefore, an essential prerequisite for cost-effective contaminant remediation efforts. In addition, because such features are potential avenues for rapid transport of chemicals from contamination sources to the water table, the presence of fractures and other channel-like openings in the vadose zone poses a particularly significant problem, Conceptual Models of Flow and Transport in the Fractured Vadose Zone is based on the work of a panel established under the auspices of the U.S. National Committee for Rock Mechanics. It emphasizes the importance of conceptual models and goes on to review the conceptual model development, testing, and refinement processes. The book examines fluid flow and transport mechanisms, noting the difficulty of modeling solute transport, and identifies geochemical and environmental tracer data as important components of the modeling process. Finally, the book recommends several areas for continued research.

Water in Road Structures

Water in Road Structures PDF Author: Andrew Dawson
Publisher: Springer Science & Business Media
ISBN: 1402085621
Category : Science
Languages : en
Pages : 454

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Book Description
Only book world-wide addressing this topic. The principal output of the European co-operative Action on "Water Movements in Road Pavements & Embankments". Provides unique guidance on assessing water condition and its affects on road performance. Provides unique guidance on assessing and ameliorating contaminant movement in pavement groundwater. Written by leading experts in Europe.

Unsaturated Flow in Hydrologic Modeling

Unsaturated Flow in Hydrologic Modeling PDF Author: H.J. Morel-Seytoux
Publisher: Springer
ISBN:
Category : Nature
Languages : en
Pages : 560

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Book Description
Proceedings of the NATO Advanced Research Workshop, Arles, France, June 13-17, 1988