Multicomponent Reactive Chemical Transport Under Transient Fluid Flow Conditions
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Author | : Ming Zhu |
Publisher | : |
Total Pages | : 480 |
Release | : 1995 |
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Download Multicomponent Reactive Chemical Transport Under Transient Fluid Flow Conditions Book in PDF, Epub and Kindle
Author | : |
Publisher | : Academic Press |
Total Pages | : 447 |
Release | : 1996-06-25 |
Genre | : Technology & Engineering |
ISBN | : 008057582X |
Download Transport Phenomena in Materials Processing Book in PDF, Epub and Kindle
Materials processing and manufacturing are fields of growing importance whereby transport phenomena play a central role in many of the applications. This volume is one of the first collections of contributions on thesubject. The five papers cover a wide variety of applications
Author | : Dieter Bothe |
Publisher | : Birkhäuser |
Total Pages | : 677 |
Release | : 2017-07-13 |
Genre | : Mathematics |
ISBN | : 3319566024 |
Download Transport Processes at Fluidic Interfaces Book in PDF, Epub and Kindle
There are several physico-chemical processes that determine the behavior of multiphase fluid systems – e.g., the fluid dynamics in the different phases and the dynamics of the interface(s), mass transport between the fluids, adsorption effects at the interface, and transport of surfactants on the interface – and result in heterogeneous interface properties. In general, these processes are strongly coupled and local properties of the interface play a crucial role. A thorough understanding of the behavior of such complex flow problems must be based on physically sound mathematical models, which especially account for the local processes at the interface. This book presents recent findings on the rigorous derivation and mathematical analysis of such models and on the development of numerical methods for direct numerical simulations. Validation results are based on specifically designed experiments using high-resolution experimental techniques. A special feature of this book is its focus on an interdisciplinary research approach combining Applied Analysis, Numerical Mathematics, Interface Physics and Chemistry, as well as relevant research areas in the Engineering Sciences. The contributions originated from the joint interdisciplinary research projects in the DFG Priority Programme SPP 1506 “Transport Processes at Fluidic Interfaces.”
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Release | : 2008 |
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Download A Sequential Partly Iterative Approach for Multicomponent Reactive Transport with CORE2D. Book in PDF, Epub and Kindle
CORE{sup 2D} V4 is a finite element code for modeling partly or fully saturated water flow, heat transport and multicomponent reactive solute transport under both local chemical equilibrium and kinetic conditions. It can handle coupled microbial processes and geochemical reactions such as acid-base, aqueous complexation, redox, mineral dissolution/precipitation, gas dissolution/exsolution, ion exchange, sorption via linear and nonlinear isotherms, sorption via surface complexation. Hydraulic parameters may change due to mineral precipitation/dissolution reactions. Coupled transport and chemical equations are solved by using sequential iterative approaches. A sequential partly-iterative approach (SPIA) is presented which improves the accuracy of the traditional sequential noniterative approach (SNIA) and is more efficient than the general sequential iterative approach (SIA). While SNIA leads to a substantial saving of computing time, it introduces numerical errors which are especially large for cation exchange reactions. SPIA improves the efficiency of SIA because the iteration between transport and chemical equations is only performed in nodes with a large mass transfer between solid and liquid phases. The efficiency and accuracy of SPIA are compared to those of SIA and SNIA using synthetic examples and a case study of reactive transport through the Llobregat Delta aquitard in Spain. SPIA is found to be as accurate as SIA while requiring significantly less CPU time. In addition, SPIA is much more accurate than SNIA with only a minor increase in computing time. A further enhancement of the efficiency of SPIA is achieved by improving the efficiency of the Newton-Raphson method used for solving chemical equations. Such an improvement is obtained by working with increments of log-concentrations and ignoring the terms of the Jacobian matrix containing derivatives of activity coefficients. A proof is given for the symmetry and non-singularity of the Jacobian matrix. Numerical analyses performed with synthetic examples confirm that these modifications improve the efficiency and convergence of the iterative algorithm.
Author | : The Editors of REA |
Publisher | : Research & Education Assoc. |
Total Pages | : 110 |
Release | : 2013-01-01 |
Genre | : Technology & Engineering |
ISBN | : 9780738672472 |
Download Transport Phenomena II Essentials Book in PDF, Epub and Kindle
REA’s Essentials provide quick and easy access to critical information in a variety of different fields, ranging from the most basic to the most advanced. As its name implies, these concise, comprehensive study guides summarize the essentials of the field covered. Essentials are helpful when preparing for exams, doing homework and will remain a lasting reference source for students, teachers, and professionals. Transport Phenomena II covers forced convention, temperature distribution, free convection, diffusitivity and the mechanism of mass transfer, convective mass transfer, concentration distribution in solids and in laminar flow, and the equation of change for multicomponent systems.
Author | : David R. Poirier |
Publisher | : Springer |
Total Pages | : 652 |
Release | : 2016-12-06 |
Genre | : Technology & Engineering |
ISBN | : 3319480901 |
Download Transport Phenomena in Materials Processing Book in PDF, Epub and Kindle
This text provides a teachable and readable approach to transport phenomena (momentum, heat, and mass transport) by providing numerous examples and applications, which are particularly important to metallurgical, ceramic, and materials engineers. Because the authors feel that it is important for students and practicing engineers to visualize the physical situations, they have attempted to lead the reader through the development and solution of the relevant differential equations by applying the familiar principles of conservation to numerous situations and by including many worked examples in each chapter. The book is organized in a manner characteristic of other texts in transport phenomena. Section I deals with the properties and mechanics of fluid motion; Section II with thermal properties and heat transfer; and Section III with diffusion and mass transfer. The authors depart from tradition by building on a presumed understanding of the relationships between the structure and properties of matter, particularly in the chapters devoted to the transport properties (viscosity, thermal conductivity, and the diffusion coefficients). In addition, generous portions of the text, numerous examples, and many problems at the ends of the chapters apply transport phenomena to materials processing.
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Total Pages | : 38 |
Release | : 1989 |
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Download Transport Properties of Multi-component Fluids and of Suspensions Book in PDF, Epub and Kindle
This report describes work performed under grant No. DE-FG03-88ER13911 for the period June 15, 1988 through June 14, 1989. During this time, significant progress was made in the derivation of the fundamental equations describing suspensions and multicomponent fluid flow. We first considered a system consisting of spherical heavy (Brownian) particles immersed in a bath of spherical particles. The deviations of the bath from equilibrium are due to the nonequilibrium motions of the Brownian particles. The densities of the bath and of a Brownian particle are similar. An expansion in powers of the mass ratio, yields a Fokker-Planck equation for the distribution function of the Brownian particles, including the effects of direct and hydrodynamic interactions amongst these particles. The effect of the Brownian particle motion on the bath properties has been described. The conditions under which a closed equation for the coordinate space distribution function, can be obtained have been investigated and a Smoluchowski equation for this quantity has been derived.
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Release | : 2003 |
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Download Reactive Chemical Transport Under Multiphase System Book in PDF, Epub and Kindle
Author | : R. Byron Bird |
Publisher | : Wiley Global Education |
Total Pages | : 919 |
Release | : 2009-10-05 |
Genre | : Technology & Engineering |
ISBN | : 0470606924 |
Download Transport Phenomena Book in PDF, Epub and Kindle
Eine ausgewogene, seit langem bewährte Einführung in die Behandlung von Transportphänomenen, jetzt in der 2. überarbeiteten Auflage! Stoff-, Impuls- und Energietransport werden in drei verschiedenen Maßstäben behandelt: auf molekularem, mikroskopischem und makroskopischem Niveau. Im Vergleich zur ersten Auflage wurde die Präsentation des Stoffes verbessert und im Detail aktualisiert. Zahlreiche Referenzen erleichtern den Einstieg in die weiterführende Fachliteratur.
Author | : John C. Slattery |
Publisher | : Cambridge University Press |
Total Pages | : 738 |
Release | : 1999-07-13 |
Genre | : Technology & Engineering |
ISBN | : 9780521635653 |
Download Advanced Transport Phenomena Book in PDF, Epub and Kindle
Text on momentum, energy, and mass transfer for graduate engineering students.