Discrete Particle Transport In Porous Media
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Discrete Particle Transport In Porous Media
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Author : Joon Sik Yoon
language : en
Publisher:
Release Date : 2005
Discrete Particle Transport In Porous Media written by Joon Sik Yoon and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with categories.
(Cont.) The entrapment mechanism was physical interlocking on surface roughness and physical straining at the contact points. Particle sedimentation and particle re-entrainment as a result of flow field perturbations were the main mechanisms contributing to the hindrance of particles. Changes in the concentrations of particles that were entrapped or hindered were observed with distance from the particle injection point. These changes, which became more significant as the fluid velocity decreased, were attributed to particle size distribution effects. Experiments conducted with an upward pore fluid velocity supported the hypothesis that particle entrapment and hindrance are driven by gravity. The comparison of the experimental results with particle transport models based on macroscopic mass balance equations demonstrated some of the short-comings of these models. Drainage tests performed using the geotechnical centrifuge and the new visualization technique e also provided initial insight into discrete particle behavior in an unsaturated porous medium. The results of these tests show that particles were scavenged by the air-water interface, adsorbed on the air-water interface of the pendular rings, and were retained by film straining. Thus, it is believed that the visualization technique developed during this work can be used to further investigations of discrete particle transport behavior in partially saturated porous media.
Transport Phenomena In Porous Media
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Author : Derek B Ingham
language : en
Publisher: Elsevier
Release Date : 1998-09-07
Transport Phenomena In Porous Media written by Derek B Ingham and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998-09-07 with Technology & Engineering categories.
Research into thermal convection in porous media has substantially increased during recent years due to its numerous practical applications. These problems have attracted the attention of industrialists, engineers and scientists from many very diversified disciplines, such as applied mathematics, chemical, civil, environmental, mechanical and nuclear engineering, geothermal physics and food science. Thus, there is a wealth of information now available on convective processes in porous media and it is therefore appropriate and timely to undertake a new critical evaluation of this contemporary information. Transport Phenomena in Porous Media contains 17 chapters and represents the collective work of 27 of the world's leading experts, from 12 countries, in heat transfer in porous media. The recent intensive research in this area has substantially raised the expectations for numerous new practical applications and this makes the book a most timely addition to the existing literature. It includes recent major developments in both the fundamentals and applications, and provides valuable information to researchers dealing with practical problems in thermal convection in porous media. Each chapter of the book describes recent developments in the highly advanced analytical, numerical and experimental techniques which are currently being employed and discussions of possible future developments are provided. Such reviews not only result in the consolidation of the currently available information, but also facilitate the identification of new industrial applications and research topics which merit further work.
Fundamentals Of Transport Phenomena In Porous Media
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Author : Jacob Bear
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Fundamentals Of Transport Phenomena In Porous Media written by Jacob Bear and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Technology & Engineering categories.
This volume contains the lectures presented at the NATO Advanced Study Institute that took place at the University of Delaware, Newark, Delaware, July 18-27, 1982. The purpose of this Institute was to provide an international forum for exchange of ideas and dissemination of knowledge on some selected topics in Mechanics of Fluids in Porous Media. Processes of transport of such extensive quantities as mass of a phase, mass of a component of a phase, momentum and/or heat occur in diversified fields, such as petroleum reservoir engineer ing, groundwater hydraulics, soil mechanics, industrial filtration, water purification, wastewater treatment, soil drainage and irri gation, and geothermal energy production. In all these areas, scientists, engineers and planners make use of mathematical models that describe the relevant transport processes that occur within porous medium domains, and enable the forecasting of the future state of the latter in response to planned activities. The mathe matical models, in turn, are based on the understanding of phenomena, often within the void space, and on theories that re late these phenomena to measurable quantities. Because of the pressing needs in areas of practical interest, such as the develop ment of groundwater resources, the control and abatement of groundwater contamination, underground energy storage and geo thermal energy production, a vast amount of research efforts in all these fields has contributed, especially in the last t~o decades, to our understanding and ability to describe transport phenomena.
Particle Transport In Flow Through Porous Media
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Author : Russell Edgar Mau
language : en
Publisher:
Release Date : 1992
Particle Transport In Flow Through Porous Media written by Russell Edgar Mau and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Fluid dynamics categories.
Porous Media Fluid Transport And Pore Structure
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Author : F Dullien
language : en
Publisher: Elsevier
Release Date : 2012-12-02
Porous Media Fluid Transport And Pore Structure written by F Dullien and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-02 with Technology & Engineering categories.
Porous Media: Fluid Transport and Pore Structure presents relevant data on the role of pore structure in terms of transport phenomena in pore spaces. The information is then applied to the interpretation of various experiments and results of model calculations. This book emphasizes the discussion of ""flow through porous media"" in terms of interactions among the three main factors. These factors are transport phenomena, interfacial effects, and pore structure. An introductory chapter opens the text and presents some of the basic concepts and terms that will be encountered all throughout. Chapters 2 to 4 focus on the important foundations of the physical phenomena as applied in the pore space of porous media. These foundations are capillarity, pore structure, and single phase flow and diffusion. Chapters 5 to 7 discuss more in detail the different applications of pore structure to various operations and processes. Some of the concepts covered in this part of the book include flow and/or diffusion through a porous medium, simultaneous flow of immiscible fluids and immiscible displacement, and miscible displacement and hydrodynamic dispersion. This book is a good reference to students, scientists, and engineers in the field of chemistry, physics, and biology.
Porous Media
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Author : Pierre Adler
language : en
Publisher: Elsevier
Release Date : 2013-10-22
Porous Media written by Pierre Adler and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-10-22 with Technology & Engineering categories.
The goal of "Porous Media: Geometry and Transports" is to provide the basis of a rational and modern approach to porous media. This book emphasizes several geometrical structures (spatially periodic, fractal, and random to reconstructed) and the three major single-phase transports (diffusion, convection, and Taylor dispersion)."Porous Media" serves various purposes. For students it introduces basic information on structure and transports. Engineers will find this book useful as a readily accessible assemblage of al the major experimental results pertaining to single-phase transports in porous media. For scientists it presents the latest developments in the field, some of which have never before been published.
Particle Transport In Aqueous Flow Through Porous Media
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Author : Kuan-Mu Yao
language : en
Publisher:
Release Date : 1968
Particle Transport In Aqueous Flow Through Porous Media written by Kuan-Mu Yao and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1968 with categories.
Fundamentals Of Transport Phenomena In Porous Media
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Author :
language : en
Publisher: Elsevier
Release Date : 1972-01-01
Fundamentals Of Transport Phenomena In Porous Media written by and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 1972-01-01 with Science categories.
Fundamentals of transport phenomena in porous media
Transport Processes In Porous Media
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Author : Jacob Bear
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Transport Processes In Porous Media written by Jacob Bear and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Technology & Engineering categories.
This volume contains the invited lectures presented during the NATO/ASI conducted in Pullman, Washington, July 9-18, 1989. This is the third in a series of NATO/ASIs on transport phenomena in porous media. The first two, which took place at Newark, Delaware in 1982 and 1985, are devoted to various topics related to the Fundamentals of Transport Processes in Porous Media. The contents of the books resulting from previous NATO/ASIs are given at the end of this book. Transport of extensive quantities such as mass of a fluid phase, mass of chemical species carried by a fluid phase, energy and electric charge in porous media, as encountered in a large variety of engineering disciplines, is an emerging interdisciplinary field. The groundwater flow, the simultaneous flow of gas, oil and water in petroleum reservoirs, the movement and accumulation of pollutants in the saturated and unsaturated subsurface zones, thermal energy storage in reservoirs, land subsidence in response to charges in overburden loads, or to pumping of fluids from underground formations, wave propagation in seismic investigations or as produced by earthquakes, chemical reactors, water flow through sand filters and the movement of fluids through kidneys, may serve as examples of fields in which the theory of transport in porous media is employed.
Colloidal Particle Transport In Porous Media
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Author : Randall Storm
language : en
Publisher:
Release Date : 2023
Colloidal Particle Transport In Porous Media written by Randall Storm and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023 with Colloids categories.
Colloidal particle transport in porous media is observed in several natural and engineered systems and has relevant applications such as enhanced oil recovery operations, targeted drug delivery treatment, and groundwater filtration processes within soil. This thesis presents a pore-scale numerical study of particle transport through a porous bed of fixed spheres arranged in a body-centered cubic (BCC) structure. The fluid flow field through the porous bed was calculated using a combined immersed boundary-lattice Boltzmann method. Individual particle trajectories were determined using the soft-sphere discrete-element method. The effects of particle size, fluid flow rate, and adhesion strength were investigated to illustrate the primary mechanisms influencing particle migration. The BCC pore structure created paths where the fluid flowed preferentially, resembling sinusoidal corrugated channels. The fluid straining field through these channels caused inertial drift of the particles towards the channel centers via a phenomenon related to oscillatory clustering. A measure was introduced to quantify particle drift into these channels over time and was shown to compare well with theoretical models for oscillatory clustering with non-adhesive particles. In the absence of adhesive forces, larger particles and higher flow rates resulted in greater particle clustering. Long-term collisions and particle capture by fixed-bed particles were observed to limit the drift measure. Computations performed with adhesive particles showed a significant reduction in the tendency for oscillatory clustering to occur due to suspended particles being more likely to remain attached to fixed bed particles along with longer collision durations.