Download or read book Diffusion and Rheology in Non Brownian Concentrated Suspensions with Accelerated Stokesian Dynamics Simulations written by Asimina Sierou and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Rheology of Bimodal Suspensions of Hydrodynamically Interacting Spherical Particles written by Chingyi Chang and published by . This book was released on 1993 with total page 558 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rheology of Non spherical Particle Suspensions written by Francisco Chinesta and published by Elsevier. This book was released on 2015-10-06 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a review of the current understanding of the behavior of non-spherical particle suspensions providing experimental results, rheological models and numerical modeling. In recent years, new models have been developed for suspension rheology and as a result applications for nanocomposites have increased. The authors tackle issues within experimental, model and numerical simulations of the behavior of particle suspensions. Applications of non-spherical particle suspension rheology are widespread and can be found in organic matrix composites, nanocomposites, biocomposites, fiber-filled fresh concrete flow, blood and biologic fluids. - Understand how to model and predict the final microstructure and properties of particle suspensions - Explores nano, micro, meso and macro scales - Rheology, thermomechanical and electromagnetic physics are discussed
Download or read book Theory and Applications of Colloidal Suspension Rheology written by Norman J. Wagner and published by Cambridge University Press. This book was released on 2021-04-15 with total page 437 pages. Available in PDF, EPUB and Kindle. Book excerpt: Essential text on the practical application and theory of colloidal suspension rheology, written by an international coalition of experts.
Download or read book Journal of Rheology written by and published by . This book was released on 2008 with total page 932 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes abstracts from the Journal of the Society of Rheology, Japan.
Download or read book Colloidal Suspension Rheology written by Jan Mewis and published by Cambridge University Press. This book was released on 2012 with total page 417 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presented in an accessible and introductory manner, this is the first book devoted to the comprehensive study of colloidal suspensions.
Download or read book Developments in the Flow of Complex Fluids in Tubes written by Dennis A. Siginer and published by Springer. This book was released on 2014-11-11 with total page 169 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is dedicated to the tube flow of viscoelastic fluids and Newtonian single and multi-phase particle-laden fluids. This succinct volume collects the most recent analytical developments and experimental findings, in particular in predicting the secondary field, highlighting the historical developments which led to the progress made. This book brings a fresh and unique perspective and covers and interprets efforts to model laminar flow of viscoelastic fluids in tubes and laminar and turbulent flow of single and multi-phase particle-laden flow of linear fluids in the light of the latest findings.
Download or read book Handbook of Materials Modeling written by Sidney Yip and published by Springer Science & Business Media. This book was released on 2007-11-17 with total page 2903 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first reference of its kind in the rapidly emerging field of computational approachs to materials research, this is a compendium of perspective-providing and topical articles written to inform students and non-specialists of the current status and capabilities of modelling and simulation. From the standpoint of methodology, the development follows a multiscale approach with emphasis on electronic-structure, atomistic, and mesoscale methods, as well as mathematical analysis and rate processes. Basic models are treated across traditional disciplines, not only in the discussion of methods but also in chapters on crystal defects, microstructure, fluids, polymers and soft matter. Written by authors who are actively participating in the current development, this collection of 150 articles has the breadth and depth to be a major contributor toward defining the field of computational materials. In addition, there are 40 commentaries by highly respected researchers, presenting various views that should interest the future generations of the community. Subject Editors: Martin Bazant, MIT; Bruce Boghosian, Tufts University; Richard Catlow, Royal Institution; Long-Qing Chen, Pennsylvania State University; William Curtin, Brown University; Tomas Diaz de la Rubia, Lawrence Livermore National Laboratory; Nicolas Hadjiconstantinou, MIT; Mark F. Horstemeyer, Mississippi State University; Efthimios Kaxiras, Harvard University; L. Mahadevan, Harvard University; Dimitrios Maroudas, University of Massachusetts; Nicola Marzari, MIT; Horia Metiu, University of California Santa Barbara; Gregory C. Rutledge, MIT; David J. Srolovitz, Princeton University; Bernhardt L. Trout, MIT; Dieter Wolf, Argonne National Laboratory.
Download or read book Dynamic Simulation of Concentrated Colloidal Suspensions written by Kevin Richard Hase and published by . This book was released on 2001 with total page 744 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mass Transfer and Rheology of Fiber Suspensions written by and published by . This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rheological and mass transfer properties of non-Brownian fiber suspensions are affected by fiber characteristics, fiber interactions, and processing conditions. In this thesis we develop several simulation methods to study the dynamics of single fibers in simple shear flow, as well as the rheology and mass transfer of fiber suspensions. Isolated, rigid, neutrally-buoyant, non-Brownian, slightly curved, nonchiral fibers in simple shear flow of an incompressible Newtonian fluid at low Reynolds number can drift steadily in the gradient direction without external forces or torques. The average drift velocity and direction depend on the fiber aspect ratio, curvature and initial orientation. The drift results from the coupling of rotational and translational dynamics, and the combined effects of flipping, scooping, and spinning motions of the fiber. Irreversible fiber collisions in the suspensions cause shear-induced diffusion. The shear-induced self-diffusivity of dilute suspensions of fibers increases with increasing concentration and increasing static friction between contacts. The diffusivities in both the gradient and vorticity directions are larger for suspensions of curved fibers than for suspensions of straight fibers. For suspensions of curved fibers, significant enhancements in the diffusivity in the gradient direction are attributed to fiber drift in the gradient direction. The shear-induced self-diffusivity of concentrated suspensions of fibers increases with increasing concentration before fiber networks or flocs are formed, after which the diffusivity decreases with increasing concentration. The diffusivity increases with increasing fiber equilibrium bending angle, effective stiffness, coefficient of static friction, and rate of collisions. The specific viscosity of fiber suspensions increases with increasing fiber curvature, friction coefficient between mechanical contacts, and solids concentration. The specific viscosity increases linearly with concentration in the dilute regime, and increases with the cube of the concentration in the semi-dilute regime. Concentrated fiber suspensions are highly viscous, shear thinning, and exhibit significant yield stresses and normal stress differences. Yield stresses scale with volume concentration and fiber aspect ratio in the same way as that observed in experiments. The first normal stress difference increases linearly with shear rate. The shear-induced diffusivity increases linearly with the derivative of the particle contribution to stress for dilute suspensions with respective to concentration. This correlation between rheology and shear-induced diffusion makes it possible to predict diffusivity from easily measured rheological properties.
Download or read book Dynamics and Rheology of Particulate Suspensions Undergoing Steady and Unsteady Shear Flows written by Hyun-Ok Park and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Secondly, the stability and rheology of the single walled carbon nanotube (SWNT) suspensions prepared by interfacial trapping method is examined and compared to a conventional method of ultracentrifugation. Since the rheological properties are sensitive to the suspension microstructure, the change of rheological properties, such as viscosity, can be employed as a systematic standard of stability. The steady shear viscosities have been measured and compared as a function of shear rate and aging time of the suspension. Also, the visual states of the suspension have been observed. The rheology of the SWNT suspensions depends on the preparation of surfactant solution. Also, the interfacial trapping method generated similar behaviors to the SWNT suspension prepared by the ultracentrifugation method. Finally, the dynamics of non-colloidal spheres in oscillatory shear flow is studied by experiment and simulation. Two distinct scales are observed for the development of the rheology in time. At small total strains, a rapid decay of ... is observed, while ... and ... remain constant. However, the evolution of the complex viscosity is observed over large total strains, indicating microstructural changes over long times. Also, this suspension system shows a non-monotonic dependence of viscosity on strain amplitude. Stokesian dynamics simulations are used to correlate the rheology and microstructures.
Download or read book Informatics Networking and Intelligent Computing written by Jiaxing Zhang and published by CRC Press. This book was released on 2015-05-06 with total page 2590 pages. Available in PDF, EPUB and Kindle. Book excerpt: This proceedings volume contains selected papers presented at the 2014 International Conference on Informatics, Networking and Intelligent Computing, held in Shenzhen, China. Contributions cover the latest developments and advances in the field of Informatics, Networking and Intelligent Computing.
Download or read book Colloidal Dynamics Simulations of Rheology and Stability of Concentrated Fuel Slurries written by Gerald Wilemski and published by . This book was released on 1987 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents the results of a Phase I SBIR project to calculate properties of concentrated colloidal suspensions using computer simulation methods. Equilibrium and nonequilibrium Brownian dynamics (NEBD) simulations were performed for concentrated aqueous and nonaqueous colloidal suspensions. These are the first calculations of suspension shear viscosity based on NEBD simulations. Stability estimates were also made for sterically stabilized nonaqueous suspensions. The NEBD calculations provide quantitative evidence for the disturbance of the equilibrium structure of the dispersions by shearing. Shear viscosities have been calculated as a function of shear rate and particle volume fraction. Good agreement was obtained with experimental viscosities for comparable systems. The simulation results are sensitive to the type, strength and range of the potential interactions used to describe the dispersion. These results demonstrate that the NEBD technique is capable of describing the essential features of sheared suspension behavior. They also establish the feasibility and desirability of using NEBD simulation methods as a predictive engineering tool for the design of slurries. Keywords: Colloidal dynamics, Rheology, Fuel slurries, Computer simulation.
Download or read book Encyclopedia of Surface and Colloid Science written by P. Somasundaran and published by CRC Press. This book was released on 2006 with total page 1014 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rheology of Concentrated Suspensions Shear induced Migration written by Talib Dbouk and published by . This book was released on 2011 with total page 253 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lorsqu'une suspension concentrée est en écoulement, il est fréquent d'observer que la concentration en particules ne reste pas homogène mais que les particules migrent vers des régions préférentielles de l'écoulement. Globalement, il existe deux types de modèles pour décrire cette interaction entre l'écoulement et la structure qui apparaît dans la suspension. Les premiers sont assez phénoménologiques et reposent sur l'étude des collisions qui surviennent entre les particules en écoulement. Ils donnent lieu à une description de la migration en termes de diffusion des particules. Le second modèle, appelé "Suspension Balance Model" (SBM), fait appel à l'action des contraintes normales d'origine particulaires engendrées par l'écoulement. Ce modèle semble très pertinent mais son utilisation souffre du manque de données sur les contraintes normales dans les suspensions. Ce manuscrit rapporte une étude expérimentale et numérique de la rhéologie et de la migration induite par un écoulement dans des suspensions non-browniennes concentrées. La partie expérimentale consiste à mesurer, en géométrie torsionnelle plan-plan, la viscosité, les deux différences de contraintes normales et le tenseur des contraintes particulaires. Les contraintes particulaires déterminées expérimentalement sont alors injectées dans le "Suspension Balance Model" qui relie le flux de particules à la divergence du tenseur des contraintes particulaires, dans le cas d'un écoulement de cisaillement simple. Les équations couplées de la conservation de la masse, des particules et du moment d'inertie sont implémentées dans OpenFOAMr et résolues par la méthode des volumes finis. Les résultats numériques sont comparés à des résultats numériques et expérimentaux de la littérature. Enfin, le SBM est généralisé pour être utilisé dans tout type d'écoulement à 2 dimensions ; les cas du cisaillement d'un nuage de particules et de l'effet de la gravité dans un écoulement de Couette horizontal sont traités.
Download or read book High Performance Computing in Science and Engineering 07 written by Wolfgang E. Nagel and published by Springer Science & Business Media. This book was released on 2007-12-18 with total page 661 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the state-of-the-art in simulation on supercomputers. Leading researchers present results achieved on systems of the Stuttgart High Performance Computing Center in 2007. The reports cover all fields of computational science and engineering, with emphasis on industrially relevant applications. Presenting results for both vector-based and microprocessor-based systems, the book allows comparison between performance levels and usability of various architectures.
Download or read book Encyclopedia of Surface and Colloid Science 2004 Update Supplement written by P. Somasundaran and published by CRC Press. This book was released on 2014-05-08 with total page 842 pages. Available in PDF, EPUB and Kindle. Book excerpt: Appending the Encyclopedia of Surface and Colloid Science by 42 entries as well as 3800 new citations, 1012 equations, and 485 illustrations and chemical structures, this important supplement summarizes a constellation of new theoretical and experimental findings related to chemical characterization, mechanisms, interfacial behavior, methods and mo
