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Dynamics Of Colloidal And Polymeric Suspensions Via A Fluctuating Lattice Boltzmann Model
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Book Synopsis Dynamics of Colloidal and Polymeric Suspensions Via a Fluctuating Lattice-Boltzmann Model by : O. Berk Usta
Download or read book Dynamics of Colloidal and Polymeric Suspensions Via a Fluctuating Lattice-Boltzmann Model written by O. Berk Usta and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: ABSTRACT: We investigate the dynamic and static properties of polymeric suspensions via a numerical simulation method. This method couples Newtonian mechanics of solid phase suspended particles with a fluctuating lattice-Boltzmann fluid. This results in the solution of the Navier-Stokes equation, including thermal fluctuations and hydrodynamic interactions for the solid particles. The coupling can be achieved either through boundary conditions for a finite sized particle or through a Stokes-like frictional coupling for point particles. The frictional coupling procedure is a very efficient approach due to the use of point particles which take up much smaller volumes. This in turn results in simulations of far fewer lattice nodes, while retaining essential hydrodynamic features for dynamics of polymers. This approach has enabled us to simulate polymer chains with more than 1000 segments, including hydrodynamic interactions. This discretization is nearly an order of magnitude higher than what is feasible using traditional Brownian dynamics methods. The fluctuating lattice-Boltzmann method is presented for both colloidal and polymeric suspensions. A verification of the fluctuations for the case of colloidal finite sized particles is presented as a test case. However, the main theme of this thesis is the simulations of dilute polymer solutions.
Book Synopsis Accelerated Lattice Boltzmann Model for Colloidal Suspensions by : Hassan Farhat
Download or read book Accelerated Lattice Boltzmann Model for Colloidal Suspensions written by Hassan Farhat and published by Springer Science & Business Media. This book was released on 2014-04-12 with total page 161 pages. Available in PDF, EPUB and Kindle. Book excerpt: Colloids are ubiquitous in the food, medical, cosmetics, polymers, water purification, and pharmaceutical industries. The thermal, mechanical, and storage properties of colloids are highly dependent on their interface morphology and their rheological behavior. Numerical methods provide a convenient and reliable tool for the study of colloids. Accelerated Lattice Boltzmann Model for Colloidal Suspensions introduce the main building-blocks for an improved lattice Boltzmann–based numerical tool designed for the study of colloidal rheology and interface morphology. This book also covers the migrating multi-block used to simulate single component, multi-component, multiphase, and single component multiphase flows and their validation by experimental, numerical, and analytical solutions. Among other topics discussed are the hybrid lattice Boltzmann method (LBM) for surfactant-covered droplets; biological suspensions such as blood; used in conjunction with the suppression of coalescence for investigating the rheology of colloids and microvasculature blood flow. The presented LBM model provides a flexible numerical platform consisting of various modules that could be used separately or in combination for the study of a variety of colloids and biological flow deformation problems.
Book Synopsis Numerical Simulations of Colloidal Suspensions Via the Lattice Boltzmann Equation Method by : Oliver Patrick Behrend
Download or read book Numerical Simulations of Colloidal Suspensions Via the Lattice Boltzmann Equation Method written by Oliver Patrick Behrend and published by . This book was released on 1995 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Numerical Simulations of Colloidal Suspensions Via the Lattice Boltzmann Equation Method by : Oliver Patrick Behrend
Download or read book Numerical Simulations of Colloidal Suspensions Via the Lattice Boltzmann Equation Method written by Oliver Patrick Behrend and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Advanced Polymeric Materials by : Gabriel O. Shonaike
Download or read book Advanced Polymeric Materials written by Gabriel O. Shonaike and published by CRC Press. This book was released on 2003-04-14 with total page 586 pages. Available in PDF, EPUB and Kindle. Book excerpt: Featuring contributions from experts at some of the world's leading academic and industrial institutions, Advanced Polymeric Materials: Structure Property Relationships brings into book form a wealth of information previously available primarily only within computer programs. In a welcome narrative treatment, it provides comprehensive coverage of p
Book Synopsis Theory and Applications of Colloidal Suspension Rheology by : Norman J. Wagner
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.
Book Synopsis Modeling of Magnetic Particle Suspensions for Simulations by : Akira Satoh
Download or read book Modeling of Magnetic Particle Suspensions for Simulations written by Akira Satoh and published by CRC Press. This book was released on 2017-02-03 with total page 269 pages. Available in PDF, EPUB and Kindle. Book excerpt: The main objective of the book is to highlight the modeling of magnetic particles with different shapes and magnetic properties, to provide graduate students and young researchers information on the theoretical aspects and actual techniques for the treatment of magnetic particles in particle-based simulations. In simulation, we focus on the Monte Carlo, molecular dynamics, Brownian dynamics, lattice Boltzmann and stochastic rotation dynamics (multi-particle collision dynamics) methods. The latter two simulation methods can simulate both the particle motion and the ambient flow field simultaneously. In general, specialized knowledge can only be obtained in an effective manner under the supervision of an expert. The present book is written to play such a role for readers who wish to develop the skill of modeling magnetic particles and develop a computer simulation program using their own ability. This book is therefore a self-learning book for graduate students and young researchers. Armed with this knowledge, readers are expected to be able to sufficiently enhance their skill for tackling any challenging problems they may encounter in future.
Book Synopsis The Langevin and Generalised Langevin Approach to the Dynamics of Atomic, Polymeric and Colloidal Systems by : Ian Snook
Download or read book The Langevin and Generalised Langevin Approach to the Dynamics of Atomic, Polymeric and Colloidal Systems written by Ian Snook and published by Elsevier. This book was released on 2006-12-11 with total page 321 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Langevin and Generalised Langevin Approach To The Dynamics Of Atomic, Polymeric And Colloidal Systems is concerned with the description of aspects of the theory and use of so-called random processes to describe the properties of atomic, polymeric and colloidal systems in terms of the dynamics of the particles in the system. It provides derivations of the basic equations, the development of numerical schemes to solve them on computers and gives illustrations of application to typical systems.Extensive appendices are given to enable the reader to carry out computations to illustrate many of the points made in the main body of the book.* Starts from fundamental equations* Gives up-to-date illustration of the application of these techniques to typical systems of interest* Contains extensive appendices including derivations, equations to be used in practice and elementary computer codes
Book Synopsis Modeling Particle Suspensions Using Lattice Boltzmann Method by : Wenbin Mao
Download or read book Modeling Particle Suspensions Using Lattice Boltzmann Method written by Wenbin Mao and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Particle suspensions are common both in nature and in various technological applications. The complex nature of hydrodynamic interactions between particles and the solvent makes such analysis difficult that often requires numerical modeling to understand the behavior of particle suspensions. In this dissertation, we employ a hybrid computational model that integrates a lattice spring model for solid mechanics and a lattice Boltzmann model for fluid dynamics. We use this model to study several practical problems in which the dynamics of spherical and spheroidal particles and deformable capsules in dilute suspensions plays an important role. The results of our studies yield new information regarding the dynamics of solid particle in pressure-driven channel flows and disclose the nonlinear effects associated with fluid inertia leading to particle cross-stream migration. This information not only give us a fundamental insight into the dynamics of dilute suspensions, but also yield engineering guidelines for designing high throughput microfluidic devices for sorting and separation of synthetic particles and biological cells. We first demonstrate that spherical particles can be size-separated in ridged microchannels. Specifically, particles with different sizes follow distinct trajectories as a result of the nonlinear inertial effects and secondary flows created by diagonal ridges in the channel. Then, separation of biological cells by their differential stiffness is studied and compared with experimental results. Cells with different stiffness squeeze through narrow gaps between solid diagonal ridges and channel wall, and migrate across the microchannel with different rates depending on their stiffness. This deformability-based microfluidic platform may be valuable for separating diseased cells from healthy cells, as a variety of cell pathologies manifest through the change in mechanical cell stiffness. Finally, the dynamics of spheroid particles in simple shear and Poiseuille flows are studied. Stable rotational motion, cross-stream migration, and equilibrium trajectories of non-spherical particles in flow are investigated. Effects of particle and fluid inertia on dynamics of particles are disclosed. The dependence of equilibrium trajectory on particle shape reveals a potential application for shape based particle separation.
Book Synopsis Reviews in Computational Chemistry, Volume 31 by : Abby L. Parrill
Download or read book Reviews in Computational Chemistry, Volume 31 written by Abby L. Parrill and published by John Wiley & Sons. This book was released on 2018-11-06 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Reviews in Computational Chemistry series brings together leading authorities in the field to teach the newcomer and update the expert on topics centered on molecular modeling, such as computer-assisted molecular design (CAMD), quantum chemistry, molecular mechanics and dynamics, and quantitative structure-activity relationships (QSAR). This volume, like those prior to it, features chapters by experts in various fields of computational chemistry. Topics in Volume 31 include: Lattice-Boltzmann Modeling of Multicomponent Systems: An Introduction Modeling Mechanochemistry from First Principles Mapping Energy Transport Networks in Proteins The Role of Computations in Catalysis The Construction of Ab Initio Based Potential Energy Surfaces Uncertainty Quantification for Molecular Dynamics
Download or read book Applied Mechanics Reviews written by and published by . This book was released on 1995 with total page 988 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Novel Methods in Soft Matter Simulations by : Mikko Karttunen
Download or read book Novel Methods in Soft Matter Simulations written by Mikko Karttunen and published by Springer Science & Business Media. This book was released on 2004-03-15 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soft matter and biological systems pose many challenges for theoretical, experimental and computational research. From the computational point of view, these many-body sytems cover variations in relevant time and length scales over many orders of magnitude. Indeed, the macroscopic properties of materials and complex fluids are ultimately to be deduced from the dynamics of the microsopic, molecular level. In these lectures, internationally renowned experts offer a tutorial presentation of novel approaches for bridging these space and time scales in realistic simulations. This volume addresses graduate students and nonspecialist researchers from related areas seeking a high-level but accessible introduction to the state of the art in soft matter simulations.
Book Synopsis Direct Simulation of Flexible Particle Suspensions Using Lattice-Boltzmann Equation with External Boundary Force by : Jingshu Wu
Download or read book Direct Simulation of Flexible Particle Suspensions Using Lattice-Boltzmann Equation with External Boundary Force written by Jingshu Wu and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Determination of the relation between the bulk or rheological properties of a particle suspension and its microscopic structure is an old and important problem in physical science. In general, the rheology of particle suspension is quite complex, and the problem becomes even more complicated if the suspending particle is deformable. Despite these difficulties, a large number of theoretical and experimental investigations have been devoted to the analysis and prediction of the rheological behavior of particle suspensions. However, among these studies there are very few investigations that focus on the role of particle deformability. A novel method for full coupling of the fluid-solid phases with sub-grid accuracy for the solid phase is developed. In this method, the flow is computed on a fixed regular 'lattice' using the lattice Boltzmann method (LBM), where each solid particle, or fiber, is mapped onto a Lagrangian frame moving continuously through the domain. The motion and orientation of the particle are obtained from Newtonian dynamics equations. The deformable particle is modeled by the lattice-spring model (LSM). The fiber deformation is calculated by an efficient flexible fiber model. The no-slip boundary condition at the fluid-solid interface is based on the external boundary force (EBF) method. This method is validated by comparing with known experimental and theoretical results.
Book Synopsis Dynamics and Patterns in Complex Fluids by : Akira Onuki
Download or read book Dynamics and Patterns in Complex Fluids written by Akira Onuki and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 231 pages. Available in PDF, EPUB and Kindle. Book excerpt: The fourth Nishinomiya-Yukawa Memorial Symposium, devoted to the topic of dynamics and patterns in complex fluids, was held on October 26 and 27, 1989, in Nishinomiya City, Japan, where ten invited speakers gave their lectures. A one-day meeting, comprising short talks and poster sessions, was then held on the same topic on October 28 at the Research Institute for Fundamental Physics, Kyoto University. The present volume contains the 10 invited papers and 38 contributed papers presented at these two meetings. The symposium was sponsored by Nishinomiya City, where Prof. Hideki Yukawa once lived and where he wrote the celebrated paper describing the work that was later honored by a Nobel prize. The topic of the fourth symposium was chosen from one of the most vigorously evolving and highly interdisciplinary fields in condensed matter physics. The field of complex fluids is very diverse and still in its infancy and, as a result, the definition of a complex fluid varies greatly from one researcher to the next. One of the objectives of the symposium was to clarify its definition by explicitly posing a number of potentially rich problems waiting to be explored. Indeed, experimentalists are disclosing a variety of intriguing dynamical phenomena in complex systems such as polymers, liquid crystals, gels, colloids, and surfactant systems. We, the organizers, hope that the symposium will contribute to the increasing importance of the field in the coming years.
Book Synopsis High Performance Computing in Science and Engineering ' 06 by : Wolfgang E. Nagel
Download or read book High Performance Computing in Science and Engineering ' 06 written by Wolfgang E. Nagel and published by Springer Science & Business Media. This book was released on 2007-07-26 with total page 538 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 High Performance Computing Center Stuttgart (HLRS) for the year 2006. The reports cover all fields of computational science and engineering ranging from CFD via computational physics and chemistry to computer science with a special emphasis on industrially relevant applications. The book comes with illustrations and tables.
Book Synopsis Computer Simulations of Colloidal Suspensions by : Marleen Wilhelmina Heemels
Download or read book Computer Simulations of Colloidal Suspensions written by Marleen Wilhelmina Heemels and published by . This book was released on 1999 with total page 127 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis High Performance Computing in Science and Engineering '09 by : Wolfgang E. Nagel
Download or read book High Performance Computing in Science and Engineering '09 written by Wolfgang E. Nagel and published by Springer Science & Business Media. This book was released on 2010-04-28 with total page 541 pages. Available in PDF, EPUB and Kindle. Book excerpt: At the end of the year 2008, we have seen a strategic step towards a funct- ning HPC infrastructure on Tier-0 level in Germany. Based on an agreement (Verwaltungsabkommen") between the Federal Ministry of Education and " Research (BMBF) and the state ministries for research of Baden-Wurttem- · berg, Bayern, and Nordrhein-Westfalen, a budget of overall 400 Million Euro had been allocated - equally shared between federal and state authorities in a?ve year time frame - to establish the next generation of HPC systems at the Gauss Centre for Supercomputing (GCS) - consisting of the three nat- nal supercomputing centres HLRS (Stuttgart), NIC/JSC (Julich), and LRZ · (Munich). As part of that strategic initiative, in May 2009 already NIC/JSC has installed the?rst phase of the GCS HPC Tier-0 resources, an IBM Blue Gene/P with roughly 300. 000 Cores, this time in Julic · h, With that, the GCS provides the most powerfulhigh-performance computing infrastructure in - rope already today. HLRS and its partners in the GCS have agreed on a common strategy for the installation of the next generation of leading edge HPC systems. Over the next few years, HLRS and LRZ as the other two GCS centers will upgrade their systems accordingly. The plan is to have a Tier-0 HPC system within GCS operating at any time in this?ve year period. Asanintermediatestep, HLRShasreplacedmostoftheirNECSX-8nodes by the NEC SX-9/12M192, a system with roughly 20 TFLOPs peak
