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Author : Dongxiao Zhang
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (139 download)
Download or read book Conditional stochastic analysis of solute transport in heterogeneous geologic media (PHD). written by Dongxiao Zhang and published by . This book was released on 1993 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Dongxiao Zhang
Publisher :
ISBN 13 :
Total Pages : 231 pages
Book Rating : 4.:/5 (513 download)
Download or read book Conditional Stochastic Analysis of Solute Transport in Heterogeneous Geologic Media written by Dongxiao Zhang and published by . This book was released on 1993 with total page 231 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Tian-Chyi Jim Yeh
Publisher : Cambridge University Press
ISBN 13 : 1316511189
Total Pages : 365 pages
Book Rating : 4.3/5 (165 download)
Download or read book An Introduction to Solute Transport in Heterogeneous Geologic Media written by Tian-Chyi Jim Yeh and published by Cambridge University Press. This book was released on 2023-02-28 with total page 365 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a unified and comprehensive overview of physical explanations of the stochastic concepts of solute transport processes, important scaling issues, and practical tools for the analysis of solute transport.
Author : G.N. Frantziskonis
Publisher : Springer Science & Business Media
ISBN 13 : 9401152160
Total Pages : 615 pages
Book Rating : 4.4/5 (11 download)
Download or read book PROBAMAT-21st Century: Probabilities and Materials written by G.N. Frantziskonis and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 615 pages. Available in PDF, EPUB and Kindle. Book excerpt: There are numerous technological materials - such as metals, polymers, ceramics, concrete, and many others - that vary in properties and serviceability. However, the almost universal common theme to most real materials is that their properties depend on the scale at which the analysis or observation takes place and at each scale "probabilities" play an important role. Here the word "probabilities" is used in a wider than the classical sense. In order to increase the efficiency and serviceability of these materials, researchers from NATO, CP and other countries were brought together to exchange knowledge and develop avenues for progress and applications in the st 21 century. The workshop began by reviewing progress in the subject area over the past few years and by identifying key questions that remain open. One point was how to observe/measure material properties at different scales and whether a probabilistic approach, at each scale, was always applicable and advantageous. The wide range of materials, from wood to advanced metals and from concrete to complex advanced composites, and the diversity of applications, e.g. fatigue, fracture, deformation, etc., were recognized as "obstacles" in identifying a "universal" approach.
Download or read book Stochastic Models of Solute Transport in Highly Heterogeneous Geologic Media written by and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A stochastic model of anomalous diffusion was developed in which transport occurs by random motion of Brownian particles, described by distribution functions of random displacements with heavy (power-law) tails. One variant of an effective algorithm for random function generation with a power-law asymptotic and arbitrary factor of asymmetry is proposed that is based on the Gnedenko-Levy limit theorem and makes it possible to reproduce all known Levy [alpha]-stable fractal processes. A two-dimensional stochastic random walk algorithm has been developed that approximates anomalous diffusion with streamline-dependent and space-dependent parameters. The motivation for introducing such a type of dispersion model is the observed fact that tracers in natural aquifers spread at different super-Fickian rates in different directions. For this and other important cases, stochastic random walk models are the only known way to solve the so-called multiscaling fractional order diffusion equation with space-dependent parameters. Some comparisons of model results and field experiments are presented.
Download or read book Stochastic Analysis Of Flow And Solute Transport In Heterogeneous Porous Media Using Perturbation Approach written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Analysis of flow and solute transport problem in porous media are affected by uncertainty inbuilt both in boundary conditions and spatial variability in system parameters. The experimental investigation reveals that the parameters may vary in various scales by several orders. These affect the solute plume characteristics in field-scale problem and cause uncertainty in the prediction of concentration. The main focus of the present thesis is to analyze the probabilistic behavior of solute concentration in three dimensional(3-D) heterogeneous porous media. The framework for the probabilistic analysis has been developed using perturbation approach for both spectral based analytical and finite element based numerical method. The results of the probabilistic analysis are presented either in terms of solute plume characteristics or prediction uncertainty of the concentration. After providing a brief introduction on the role of stochastic analysis in subsurface hydrology in chapter 1, a detailed review of the literature is presented to establish the existing state-of-art in the research on the probabilistic analysis of flow and transport in simple and complex heterogeneous porous media in chapter 2. The literature review is mainly focused on the methods of solution of the stochastic differential equation. Perturbation based spectral method is often used for probabilistic analysis of flow and solute transport problem. Using this analytical method a nonlocal equation is solved to derive the expression of the spatial plume moments. The spatial plume moments represent the solute movement, spreading in an average sense. In chapter 3 of the present thesis, local dispersivity if also assumed to be random space function along with hydraulic conductivity. For various correlation coefficients of the random parameters, the results in terms of the field scale effective dispersivity are presented to demonstrate the effect of local dispersivity variation in space. The randomness of local.
Author : Thomas Cummins Black
Publisher :
ISBN 13 :
Total Pages : 546 pages
Book Rating : 4.:/5 (386 download)
Download or read book Concentration Uncertainty for Stochastic Analysis of Solute Transport in a Bounded, Heterogeneous Aquifer written by Thomas Cummins Black and published by . This book was released on 1988 with total page 546 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Kane, III (Allen C.)
Publisher :
ISBN 13 :
Total Pages : 466 pages
Book Rating : 4.:/5 (311 download)
Download or read book Stochastic Analysis of Macrodispersion of Dense, Viscous, Miscible Fluids in Anisotropic Heterogeneous Porous Media and Simulation of Mean Two-dimensional Solute Transport written by Kane, III (Allen C.) and published by . This book was released on 1994 with total page 466 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Dongxiao Zhang
Publisher : Elsevier
ISBN 13 : 0080517773
Total Pages : 371 pages
Book Rating : 4.0/5 (85 download)
Download or read book Stochastic Methods for Flow in Porous Media written by Dongxiao Zhang and published by Elsevier. This book was released on 2001-10-11 with total page 371 pages. Available in PDF, EPUB and Kindle. Book excerpt: Stochastic Methods for Flow in Porous Media: Coping with Uncertainties explores fluid flow in complex geologic environments. The parameterization of uncertainty into flow models is important for managing water resources, preserving subsurface water quality, storing energy and wastes, and improving the safety and economics of extracting subsurface mineral and energy resources. This volume systematically introduces a number of stochastic methods used by researchers in the community in a tutorial way and presents methodologies for spatially and temporally stationary as well as nonstationary flows. The author compiles a number of well-known results and useful formulae and includes exercises at the end of each chapter. Balanced viewpoint of several stochastic methods, including Greens' function, perturbative expansion, spectral, Feynman diagram, adjoint state, Monte Carlo simulation, and renormalization group methods Tutorial style of presentation will facilitate use by readers without a prior in-depth knowledge of Stochastic processes Practical examples throughout the text Exercises at the end of each chapter reinforce specific concepts and techniques For the reader who is interested in hands-on experience, a number of computer codes are included and discussed
Author :
Publisher :
ISBN 13 :
Total Pages : 784 pages
Book Rating : 4.3/5 (91 download)
Download or read book American Doctoral Dissertations written by and published by . This book was released on 1998 with total page 784 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Bailing Li
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (139 download)
Download or read book Unconditional and Conditional Analysis of Flow and Solute Transport in Variably Saturated Porous Media (PHD). written by Bailing Li and published by . This book was released on 1998 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Stochastic Modeling of Macrodispersion in Unsaturated Heterogeneous Porous Media. Final Report written by and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Spatial heterogeneity of geologic media leads to uncertainty in predicting both flow and transport in the vadose zone. In this work an efficient and flexible, combined analytical-numerical Monte Carlo approach is developed for the analysis of steady-state flow and transient transport processes in highly heterogeneous, variably saturated porous media. The approach is also used for the investigation of the validity of linear, first order analytical stochastic models. With the Monte Carlo analysis accurate estimates of the ensemble conductivity, head, velocity, and concentration mean and covariance are obtained; the statistical moments describing displacement of solute plumes, solute breakthrough at a compliance surface, and time of first exceedance of a given solute flux level are analyzed; and the cumulative probability density functions for solute flux across a compliance surface are investigated. The results of the Monte Carlo analysis show that for very heterogeneous flow fields, and particularly in anisotropic soils, the linearized, analytical predictions of soil water tension and soil moisture flux become erroneous. Analytical, linearized Lagrangian transport models also overestimate both the longitudinal and the transverse spreading of the mean solute plume in very heterogeneous soils and in dry soils. A combined analytical-numerical conditional simulation algorithm is also developed to estimate the impact of in-situ soil hydraulic measurements on reducing the uncertainty of concentration and solute flux predictions.
Author : Brian J. Wagner
Publisher :
ISBN 13 :
Total Pages : 270 pages
Book Rating : 4.F/5 ( download)
Download or read book Models for Assessing and Monitoring Groundwater Quality written by Brian J. Wagner and published by . This book was released on 1995 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Don Kulasiri
Publisher : Springer
ISBN 13 : 9783642349843
Total Pages : 0 pages
Book Rating : 4.3/5 (498 download)
Download or read book Non-fickian Solute Transport in Porous Media written by Don Kulasiri and published by Springer. This book was released on 2013-05-22 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The advection-dispersion equation that is used to model the solute transport in a porous medium is based on the premise that the fluctuating components of the flow velocity, hence the fluxes, due to a porous matrix can be assumed to obey a relationship similar to Fick’s law. This introduces phenomenological coefficients which are dependent on the scale of the experiments. This book presents an approach, based on sound theories of stochastic calculus and differential equations, which removes this basic premise. This leads to a multiscale theory with scale independent coefficients. This book illustrates this outcome with available data at different scales, from experimental laboratory scales to regional scales.
Author : Jacob Bear
Publisher : Springer
ISBN 13 :
Total Pages : 1018 pages
Book Rating : 4.:/5 (319 download)
Download or read book Fundamentals of Transport Phenomena in Porous Media written by Jacob Bear and published by Springer. This book was released on 1984-11-30 with total page 1018 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the NATO Advanced Study Institute, Newark, Delaware, July 18-27, 1982
Author :
Publisher :
ISBN 13 : 9780542602832
Total Pages : 208 pages
Book Rating : 4.6/5 (28 download)
Download or read book Using Stochastic and Genetic Method to Study Prediction Uncertainty for Solute Transport in Heterogeneous Media written by and published by . This book was released on 2006 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: Considering the calculation efficiency, the method of moments apparently has a superior speed.
Author : Tian-Chyi Yeh
Publisher : Cambridge University Press
ISBN 13 : 1107076137
Total Pages : 353 pages
Book Rating : 4.1/5 (7 download)
Download or read book Flow Through Heterogeneous Geological Media written by Tian-Chyi Yeh and published by Cambridge University Press. This book was released on 2015-07-07 with total page 353 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book integrates principles of flow through porous media with stochastic analyses, for advanced-level students, researchers and professionals in hydrogeology and hydraulics.
