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Modelisation Et Simulation De Lagglomeration Des Colloides Dans Un Ecoulement Turbulent
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Book Synopsis Modélisation et simulation de l'agglomération des colloïdes dans un écoulement turbulent by : Mikaël Mohaupt
Download or read book Modélisation et simulation de l'agglomération des colloïdes dans un écoulement turbulent written by Mikaël Mohaupt and published by . This book was released on 2011 with total page 145 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ce travail de thèse porte sur la modélisation et la simulation numérique de la collision et l'agglomération de particules colloïdales dans un écoulement fluide turbulent par une nouvelle méthode. Ces particules sont sensibles dans une même mesure aux effets brownien et turbulent. La première partie du travail concerne la modélisation du phénomène physique,allant du transport des particules jusqu'à la modélisation des forces d'adhésion physico-chimiques en passant par l'étape cruciale qui est la détection des interactions entre les particules (collisions). Cette détection des collisions est dans un premier temps étudiée par rapport aux algorithmes classiques existants dans la littérature. Bien que très efficaces dans le cadre de particules soumises à l'agitation turbulente, les conclusions de cette partie exposent les limites des méthodes existantes en termes de coûts numériques, pour le traitement d'un ensemble de colloïdes soumis au mouvement brownien. La seconde partie du travail oriente alors les travaux vers une vision novatrice du phénomène physique considéré. Le caractère diffusif aléatoire est alors considéré d'un point de vu stochastique, comme un processus conditionné dans l'espace et dans le temps. Ainsi, une nouvelle méthode de détection et de traitement des collisions de particules soumises exclusivement à un mouvement diffusif est présentée et validée, exposant un gain considérable en termes de coûts numériques. Le potentiel de cette nouvelle approche est validé et ouvre de nombreuses pistes de réflexion dans l'utilisation des méthodes stochastiques appliqués à la représentation de la physique.
Book Synopsis Modélisation Stochastique Du Dépôt de Particules Colloïdales Sur Des Parois Rugueuses Dans Un Écoulement Turbulent by : Christophe Henry
Download or read book Modélisation Stochastique Du Dépôt de Particules Colloïdales Sur Des Parois Rugueuses Dans Un Écoulement Turbulent written by Christophe Henry and published by . This book was released on 2012 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of this PhD work is to develop physical models aiming at simulating particulate fouling (i.e. the accumulation of inorganic colloidal particles on surfaces) in turbulent flows in the framework of stochastic Lagrangian methods. In the first part, a new model for the calculation of particle-surface interactions including the effects of surface roughness is presented. This model is first validated on simple test-cases and the influence of surface roughness on the overall interaction is analysed. This model is then coupled with a model for particle transport in a turbulent flow. Numerical results obtained for particle deposition are found to be in line with measurements. The second part of this work is devoted to the extension of the particle-surface interaction model for the calculation of adhesion forces, accounting for both surface roughness and electrostatic forces. Numerical predictions are in good agreement with experimental data on adhesion forces. Furthermore, this model is coupled with a model for particle resuspension and numerical results obtained are shown to compare well with some available experiments. In the third part of this work, the particle deposition model is extended to simulate the accumulation of particles on a surface through the introduction of particle-particle interactions in the particle-surface interaction. Numerical results are in qualitative agreement with available experimental data, and highlight the ability of the model to reproduce a complete blockage.This study underlines the necessity to account for the coupling between particle-fluid, particle-surface and particle-particle interactions to simulate particulate fouling.
Download or read book ICREEC 2019 written by Ahmed Belasri and published by Springer Nature. This book was released on 2020-06-10 with total page 659 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book highlights peer reviewed articles from the 1st International Conference on Renewable Energy and Energy Conversion, ICREEC 2019, held at Oran in Algeria. It presents recent advances, brings together researchers and professionals in the area and presents a platform to exchange ideas and establish opportunities for a sustainable future. Topics covered in this proceedings, but not limited to, are photovoltaic systems, bioenergy, laser and plasma technology, fluid and flow for energy, software for energy and impact of energy on the environment.
Book Synopsis Faecal Sludge Management by : Linda Strande
Download or read book Faecal Sludge Management written by Linda Strande and published by IWA Publishing. This book was released on 2014-08-15 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is estimated that literally billions of residents in urban and peri-urban areas of Africa, Asia, and Latin America are served by onsite sanitation systems (e.g. various types of latrines and septic tanks). Until recently, the management of faecal sludge from these onsite systems has been grossly neglected, partially as a result of them being considered temporary solutions until sewer-based systems could be implemented. However, the perception of onsite or decentralized sanitation technologies for urban areas is gradually changing, and is increasingly being considered as long-term, sustainable options in urban areas, especially in low- and middle-income countries that lack sewer infrastructures. This is the first book dedicated to faecal sludge management. It compiles the current state of knowledge of the rapidly evolving field of faecal sludge management, and presents an integrated approach that includes technology, management, and planning based on Sandecs 20 years of experience in the field. Faecal Sludge Management: Systems Approach for Implementation and Operation addresses the organization of the entire faecal sludge management service chain, from the collection and transport of sludge, and the current state of knowledge of treatment options, to the final end use or disposal of treated sludge. The book also presents important factors to consider when evaluating and upscaling new treatment technology options. The book is designed for undergraduate and graduate students, and engineers and practitioners in the field who have some basic knowledge of environmental and/or wastewater engineering.
Book Synopsis Angular Momentum in Quantum Mechanics by : A. R. Edmonds
Download or read book Angular Momentum in Quantum Mechanics written by A. R. Edmonds and published by Princeton University Press. This book was released on 2016-08-10 with total page 155 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers a concise introduction to the angular momentum, one of the most fundamental quantities in all of quantum mechanics. Beginning with the quantization of angular momentum, spin angular momentum, and the orbital angular momentum, the author goes on to discuss the Clebsch-Gordan coefficients for a two-component system. After developing the necessary mathematics, specifically spherical tensors and tensor operators, the author then investigates the 3-j, 6-j, and 9-j symbols. Throughout, the author provides practical applications to atomic, molecular, and nuclear physics. These include partial-wave expansions, the emission and absorption of particles, the proton and electron quadrupole moment, matrix element calculation in practice, and the properties of the symmetrical top molecule.
Book Synopsis Food Emulsions by : David Julian McClements
Download or read book Food Emulsions written by David Julian McClements and published by CRC Press. This book was released on 2004-12-16 with total page 633 pages. Available in PDF, EPUB and Kindle. Book excerpt: Food Emulsions: Principles, Practice, and Techniques, Second Edition introduces the fundamentals of emulsion science and demonstrates how this knowledge can be applied to better understand and control the appearance, stability, and texture of many common and important emulsion-based foods. Revised and expanded to reflect recent developments, this s
Book Synopsis Modern Surface Organometallic Chemistry by : Jean-Marie Basset
Download or read book Modern Surface Organometallic Chemistry written by Jean-Marie Basset and published by John Wiley & Sons. This book was released on 2009-07-10 with total page 725 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covering everything from the basics to recent applications, this monograph represents an advanced overview of the field. Edited by internationally acclaimed experts respected throughout the community, the book is clearly divided into sections on fundamental and applied surface organometallic chemistry. Backed by numerous examples from the recent literature, this is a key reference for all chemists.
Download or read book Dairy Technology written by P. Walstra and published by CRC Press. This book was released on 1999-04-23 with total page 752 pages. Available in PDF, EPUB and Kindle. Book excerpt: Describes the efficient transformation of milk into a variety of products, focusing on the changes in raw material, and intermediate and final products, as well as the interactions between products and processing equipment. The book details the procedures for ensuring processing efficiency and product quality.
Book Synopsis How to Design Wastewater Systems for Local Conditions in Developing Countries by : David M. Robbins
Download or read book How to Design Wastewater Systems for Local Conditions in Developing Countries written by David M. Robbins and published by IWA Publishing. This book was released on 2014-03-15 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a practical handbook providing a step-by-step approach to the techniques used for characterizing wastewater sources and investigating sites where collection, treatment and reuse/disposal technologies will be installed. It is intended to help enable local implementation of on-site and decentralized wastewater management system (DWMS)for wide scale use in development settings. How to Design Wastewater Systems for Local Conditions in Developing Countries helps local service providers and regulatory officials make informed decisions through the use of tools, checklists and case studies. It includes a link to a web based community of on-site and decentralized wastewater professionals, which contains related tools and case studies. This handbook serves as a reference for training classes, certification programs, and higher education programs in civil and sanitary engineering. There is an increasing interest on the part of local government officials and private sector service providers to implement wastewater treatment systems to solve sanitation problems. The model presented in this handbook promotes activities that first generate data related to source and site conditions that represent critical inputs, and then applies this information to the technology selection process. Matching the most appropriate technologies to the specific needs of the wastewater project is the key that leads to long term sustainability. How to Design Wastewater Systems for Local Conditions in Developing Countries is an invaluable resource for public sector decision makers and private sector service providers in developing countries. It is also a useful text for students at engineering colleges in developing countries interested in taking a class that teaches the methods of decentralized wastewater management system (DWMS) development.
Book Synopsis Compendium of Sanitation Systems and Technologies by : Elizabeth Tilley
Download or read book Compendium of Sanitation Systems and Technologies written by Elizabeth Tilley and published by . This book was released on 2014 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Principles, Methods and Application of Particle Size Analysis by : James P. M. Syvitski
Download or read book Principles, Methods and Application of Particle Size Analysis written by James P. M. Syvitski and published by Cambridge University Press. This book was released on 2007-11-03 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: A book exploring particle size analysis of sedimentary deposits.
Author :American Chemical Society. Division of Colloid and Surface Chemistry Publisher : ISBN 13 : Total Pages :288 pages Book Rating :4.3/5 (91 download)
Book Synopsis Concentrated Dispersions by : American Chemical Society. Division of Colloid and Surface Chemistry
Download or read book Concentrated Dispersions written by American Chemical Society. Division of Colloid and Surface Chemistry and published by . This book was released on 2004 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume covers many aspects concerning the preparation, characterization, stabilization, and behavior of concentrated colloidal dispersion and presents the most recent advances in experimental techniques and theoretical methods for studying concentrated colloidal dispersions.
Book Synopsis Forest Fire Research by : Universidade de Coimbra
Download or read book Forest Fire Research written by Universidade de Coimbra and published by . This book was released on 2010 with total page 355 pages. Available in PDF, EPUB and Kindle. Book excerpt:
