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Experimental And Numerical Study Of The Migration Of Dense Non Aqueous Phase Liquid In Saturated Porous Medium At Darcy Scale
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Book Synopsis Experimental and numerical study of the migration of dense non-aqueous phase liquid in saturated porous medium at Darcy scale by : Khalifa Nsir
Download or read book Experimental and numerical study of the migration of dense non-aqueous phase liquid in saturated porous medium at Darcy scale written by Khalifa Nsir and published by . This book was released on 2009 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: Le processus de déplacement vertical d’un fluide non miscible et plus dense que l’eau (DNAPL) en milieu poreux saturé a été étudié à l’échelle de Darcy. Les expériences sur colonnes de laboratoire ont été conduites en utilisant deux modes d'écoulement : vertical ascendant et vertical descendant. Le milieu poreux utilisé est un sable homogène et le polluant considéré est un composé organo-chloré (Trichloréthylène, TCE), fréquemment trouvé dans des cas de pollutions industrielles de sols et d’eaux souterraines. Dans chaque essai, nous avons mesuré les temps d’arrivée du front eau/DNAPL dans une section de contrôle du dispositif expérimental au moyen des capteurs à fibres optiques. Nous avons aussi mesuré la pression du DNAPL à l’entrée et à la sortie de la colonne de milieu poreux. Une cartographie in situ du champ de saturations en DNAPL a été également effectuée. De ce fait, nous avons pu mettre en évidence une forte non uniformité de la répartition du polluant non miscible dans le milieu poreux saturé. De plus, nous avons pu quantifier d’une manière précise les instabilités de déplacement. A partir des résultats obtenus, il a été montré que les forces de poussée (ou de gravité) sont capables d’exercer des effets très significatifs à la fois sur la stabilité du processus de déplacement et sur l’efficacité de la récupération de la phase mobile du DNAPL. Concernant la simulation numérique, un modèle discret de pores et de capillaires a été développé. Une approche de calcul basée sur la théorie d’empilement des sphères a été élaborée pour évaluer les caractéristiques géométriques du réseau équivalent du milieu poreux utilisé dans l’expérimentation. Les résultats expérimentaux et numériques s'accordaient bien. Le modèle numérique s’est montré capable de reproduire l’évolution temporelle de la pression observée pour les différents régimes de déplacement stable et instable.
Book Synopsis Fluid Flow in Fractured Porous Media by : Richeng Liu
Download or read book Fluid Flow in Fractured Porous Media written by Richeng Liu and published by MDPI. This book was released on 2019-09-30 with total page 578 pages. Available in PDF, EPUB and Kindle. Book excerpt: The fluid flow in fracture porous media plays a significant role in the assessment of deep underground reservoirs, such as through CO2 sequestration, enhanced oil recovery, and geothermal energy development. Many methods have been employed—from laboratory experimentation to theoretical analysis and numerical simulations—and allowed for many useful conclusions. This Special Issue aims to report on the current advances related to this topic. This collection of 58 papers represents a wide variety of topics, including on granite permeability investigation, grouting, coal mining, roadway, and concrete, to name but a few. We sincerely hope that the papers published in this Special Issue will be an invaluable resource for our readers.
Download or read book Applied mechanics reviews written by and published by . This book was released on 1948 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Study of Dense Nonaqueous Phase Liquid Infiltration in Saturated Porous Media by : Zeyad Said Abu-Hassanein
Download or read book A Study of Dense Nonaqueous Phase Liquid Infiltration in Saturated Porous Media written by Zeyad Said Abu-Hassanein and published by . This book was released on 1997 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experimental and Numerical Study of Transient Water Flow and Solute Transport in Layered Saturated-unsaturated Porous Media by : Mafiz Md Uddin
Download or read book Experimental and Numerical Study of Transient Water Flow and Solute Transport in Layered Saturated-unsaturated Porous Media written by Mafiz Md Uddin and published by . This book was released on 1998* with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Multiple Experimental Realizations of Dense Nonaqueous Phase Liquid Spreading in Water-saturated Heterogeneous Porous Media by : Ronald Compos
Download or read book Multiple Experimental Realizations of Dense Nonaqueous Phase Liquid Spreading in Water-saturated Heterogeneous Porous Media written by Ronald Compos and published by . This book was released on 1998 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Subsurface Transport and Fate Processes by : Robert C. Knox
Download or read book Subsurface Transport and Fate Processes written by Robert C. Knox and published by CRC Press. This book was released on 2018-01-10 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book represents the first comprehensive reference volume available on subsurface transport and fate processes. The volume is organized into four sections covering the basics of contaminant properties and how they affect transport and fate, the fundamental processes affecting subsurface transport and fate of contaminants, applications of transport and fate information to various contaminant types, and utilization of transport and fate information for predicting contaminant behavior. Specific topics such as traditional hydrodynamic processes of advection and dispersion, facilitated transport and contaminant flushing, and individual ground water contaminants are also explored in detail. Subsurface Transport and Fate Processes is ideal for environmental and ground water consultants, regulatory agency personnel, and educators in geology, hydrogeology, civil engineering, and environmental engineering.
Book Synopsis Selected Water Resources Abstracts by :
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1980 with total page 810 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experimental and Numerical Study of Transient Water Flow and Solute Transport in Layered Saturated-unsaturated Porous Media by :
Download or read book Experimental and Numerical Study of Transient Water Flow and Solute Transport in Layered Saturated-unsaturated Porous Media written by and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Migration of Nonaqueous Liquids in Partly Saturated Granular Media by : Marina Pantazidou
Download or read book Migration of Nonaqueous Liquids in Partly Saturated Granular Media written by Marina Pantazidou and published by . This book was released on 1991 with total page 574 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Nonaqueous-phase Liquids by : Godage B. Wickramanayake
Download or read book Nonaqueous-phase Liquids written by Godage B. Wickramanayake and published by . This book was released on 1998 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: - Fractured Media- DNAPL Movement- DNAPL Behavior- Simulation of DNAPL Multiphase Flow and Transport- Characterization of Source Zones- DNAPL Recovery Systems- NAPL Remediation.
Book Synopsis Selected Water Resources Abstracts by :
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1980 with total page 672 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Spring Meeting by : American Geophysical Union. Meeting
Download or read book Spring Meeting written by American Geophysical Union. Meeting and published by . This book was released on 1998 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Capillary Trapping of Nonaqueous Phase Liquids in Saturated Porous Media by : Jeannette M. Fonte
Download or read book Capillary Trapping of Nonaqueous Phase Liquids in Saturated Porous Media written by Jeannette M. Fonte and published by . This book was released on 1998 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1985 with total page 1346 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis DNAPL Site Evaluation by : James W. Mercer
Download or read book DNAPL Site Evaluation written by James W. Mercer and published by CRC-Press. This book was released on 1993-04-29 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: DNAPL Site Evaluation covers long-term contamination of ground water by DNAPL (dense non-aqueous phase liquids) chemicals. The book develops a framework for planning and implementing DNAPL site characterization activities. It provides detailed methods to identify, characterize, and monitor sites and analyzes their utility, limitations, risks, availability, and cost. Methods to interpret contaminant fate and transport are identified, and new site characterization methods are assessed. DNAPL Site Evaluation will maximize the cost-effectiveness of site investigation/remediation by providing the best information available to describe and evaluate methods to be used for determining the presence, fate, and transport of subsurface DNAPL contamination. The book will be a useful reference for groundwater professionals and environmental regulatory personnel.
Book Synopsis Study of Transport and Dissolution of a Nonaqueous Phase Liquid in Porous Media by : Mirrya Mosier Fontenot
Download or read book Study of Transport and Dissolution of a Nonaqueous Phase Liquid in Porous Media written by Mirrya Mosier Fontenot and published by . This book was released on 2001 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: The transport and dissolution of residual non-aqueous phase liquids (NAPLS) trapped in water saturated porous media is a problem pertinent to both environmental and petrochemical industries. In this work we have quantitatively examined the complete dissolution of residual entrapped NAPL at the pore-scale in three dimensions using refractive index matching techniques along with planar laser induced fluorescence. The results yielded pore-scale information regarding ganglia volume, surface area, and position over time at various Capillary numbers. We found that with increasing Capillary numbers, the time for total dissolution decreased. In addition, it appears that large ganglia exhibit fractal area to volume scaling. We were also able to examine the distributions of the ganglia in the direction of flow over time. The use of low-frequency flow pulsations as a removal technique was also examined. A two dimensional micro model was used for these studies. We found that for this system, lower frequencies and higher amplitudes were more effective in NAPL removal due to breakup and mobilization. We also examined the effect of increasing amplitude and continuous versus pulsed stimulation. In addition, mass transport in the presence of a surfactant was also enhanced due to flow pulsation with lower frequencies and higher amplitudes again being most effective.
