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2012 | Buch

Transport Processes in Porous Media

verfasst von: Frank A. Coutelieris, J.M.P.Q. Delgado

Verlag: Springer Berlin Heidelberg

Buchreihe : Advanced Structured Materials

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SUCHEN

Über dieses Buch

The subject of this book is to study the porous media and the transport processes occur there. As a first step, the authors discuss several techniques for artificial representation of porous. Afterwards, they describe the single and multi phase flows in simplistic and complex porous structures in terms of macroscopic and microscopic equations as well as of their analytical and numerical solutions. Furthermore, macroscopic quantities such as permeability are introduced and reviewed. The book also discusses with mass transport processes in the porous media which are further strengthen by experimental validation and specific technological applications. This book makes use of state-of-the-art techniques for the modeling of transport processes in porous structures, and considers of realistic sorption mechanisms. It the applies advanced mathematical techniques for upscaling of the major quantities, and presents the experimental investigation and application, namely, experimental methods for the measurement of relevant transport properties. The main benefit of the book is that it discusses all the topics related to transport in porous media (including state-of-the-art applications) and presents some of the most important theoretical, numerical and experimental developments in porous media domain, providing a self-contained major reference that is appealing to both the scientists and the engineers. At the same time, these topics encounter a variety of scientific and engineering disciplines, such as chemical, civil, agricultural, mechanical engineering. The book is divided in several chapters that intend to be a resume of the current state of knowledge for benefit of related professionals and scientists.

Inhaltsverzeichnis

Frontmatter
Chapter 1. Introduction
Abstract
The significance of porous materials and great variety of their applications are briefly introduced here. Book contents are detailed.
Frank A. Coutelieris, J. M. P. Q. Delgado
Chapter 2. Fundamentals of Porous Structures
Abstract
Macroscopic properties, such as capillary pressure and permeability, are important variables for mathematical modeling of transport processes in porous media. However, most transport properties exhibit great variability which cannot be modeled using deterministic approaches. This chapter presents a brief description of some fundaments of porous structures, namely, cell models, digital reconstruction of porous structures (using Lattice Boltzmann Method), porous media generation, and the stochastic modeling of pore space and transport properties.
Frank A. Coutelieris, J. M. P. Q. Delgado
Chapter 3. Flow in Porous Media
Abstract
The fundamentals of single phase flow within porous media are presented in this chapter. Analytical solutions for the flow field in granular media are obtained using cell models of various geometries. Macroscopic approaches (Darcy law and its extensions) as well as numerically obtained flow fields in stochastically constructed granular structures are also discussed.
Frank A. Coutelieris, J. M. P. Q. Delgado
Chapter 4. Transport Phenomena in Porous Structures
Abstract
The phenomenon of diffusion and dispersion (axial and radial) in packed beds is summarized and reviewed for literature data. Several variables should be considered, such as the length of the packed column, viscosity and density of the fluid, ratio of column diameter to particle diameter, ratio of column length to particle diameter, particle size distribution, particle shape, effect of fluid velocity, and temperature effect (or Schmidt number). Empirical correlations are presented for the prediction of dispersion coefficients (axial and radial) over the entire range of practical values of Schmidt number and Peclet numbers. Engineering aspects of radial and axial dispersion on non-Newtonian fluids in packed beds are also considered.
Frank A. Coutelieris, J. M. P. Q. Delgado
Chapter 5. Modeling of Transport Processes in Porous Materials
Abstract
The modeling aspect for flow and mass in porous media is presented here. The cell model approach is used to obtain analytical and numerical solutions for mass transport in granular media with adsorbing grains. Several geometries (spherical, cylindrical, spheroidal) and a variety of adsorption mechanisms are examined and compared with experimentally derived data. The same problems are also solved in more realistic stochastically constructed structures of spherical grains. Finally, the spatial averaging technique is used to estimate useful macroscopic quantities, such as mass transfer coefficient.
Frank A. Coutelieris, J. M. P. Q. Delgado
Chapter 6. Experimental and Numerical Investigation of Mass Transport in Porous Media
Abstract
This chapter presents some examples of experimental and numerical investigation of mass transport in porous media. Simple and inexpensive experimental techniques are described for the measurement of tortuosity, molecular diffusion coefficients, and axial and radial dispersion coefficients in a packed bed of inert particles. The mass transfer process between a moving fluid and a soluble solid mass buried in a packed bed of small inert particles with uniform voidage is also described. Numerical solutions of the partial differential equations describing solute mass conservation are undertaken (for solute transport by both advection and diffusion).
Frank A. Coutelieris, J. M. P. Q. Delgado
Chapter 7. Applications and Examples
Abstract
This chapter presents several applications and examples of the theories and analytical/numerical aspects discussed in the previous chapters. The solutions of these problems are useful in the analysis of a variety of physical situations, in several technological fields such as chemical engineering, civil engineering, and alternative energy. Furthermore, some more generic applications related to interdisciplinary engineering aspects (food and pharmaceutical development, petroleum engineering, etc.) are presented briefly.
Frank A. Coutelieris, J. M. P. Q. Delgado
Backmatter
Metadaten
Titel
Transport Processes in Porous Media
verfasst von
Frank A. Coutelieris
J.M.P.Q. Delgado
Copyright-Jahr
2012
Verlag
Springer Berlin Heidelberg
Electronic ISBN
978-3-642-27910-2
Print ISBN
978-3-642-27909-6
DOI
https://doi.org/10.1007/978-3-642-27910-2

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