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Simulation Of Particle Agglomeration Using Dissipative Particle Dynamics
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Book Synopsis Simulation of Particle Agglomeration Using Dissipative Particle Dynamics by : Srinivas Praveen Mokkapati
Download or read book Simulation of Particle Agglomeration Using Dissipative Particle Dynamics written by Srinivas Praveen Mokkapati and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Attachment of particles to one another due to action of certain inter-particle forces is called as particle agglomeration. It has applications ranging from efficient capture of ultra-fine particles generated in coal-burning boilers to effective discharge of aerosol sprays. Aerosol sprays have their application in asthma relievers, coatings, cleaning agents, air fresheners, personal care products and insecticides. There are several factors that cause particle agglomeration and based on the application, agglomeration or de-agglomeration is desired. These various factors associated with agglomeration include van derWaals forces, capillary forces, electrostatic double-layer forces, effects of turbulence, gravity and brownian motion. It is therefore essential to understand the underlying agglomeration mechanisms involved. It is difficult to perform experiments to quantify certain effects of the inter-particle forces and hence we turn to numerical simulations as an alternative. Simulations can be performed using the various numerical simulation techniques such as molecular dynamics, discrete element method, dissipative particle dynamics or other probabilistic simulation techniques. The main objective of this thesis is to study the geometric characteristics of particle agglomerates using dissipative particle dynamics. In this thesis, agglomeration is simulated using the features of dissipative particle dynamics as the simulation technique. Forces of attraction from the literature are used to modify the form of the conservative force. Agglomeration is simulated and the characteristics of the result ing agglomerates are quantified. Simulations were performed on a sizeable number of particles and we observe agglomeration behavior. A study of the agglomerates resulting from the different types of attractive forces is performed to characterize them methodically. Also as a part of this thesis, a novel, dynamic particle simulation technique was developed by interfacing MATLAB and our computational C program.
Book Synopsis Particle Methods For Multi-scale And Multi-physics by : Moubin Liu
Download or read book Particle Methods For Multi-scale And Multi-physics written by Moubin Liu and published by World Scientific. This book was released on 2015-12-28 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: Multi-scale and multi-physics modeling is useful and important for all areas in engineering and sciences. Particle Methods for Multi-Scale and Multi-Physics systematically addresses some major particle methods for modeling multi-scale and multi-physical problems in engineering and sciences. It contains different particle methods from atomistic scales to continuum scales, with emphasis on molecular dynamics (MD), dissipative particle dynamics (DPD) and smoothed particle hydrodynamics (SPH).This book covers the theoretical background, numerical techniques and many interesting applications of the particle methods discussed in this text, especially in: micro-fluidics and bio-fluidics (e.g., micro drop dynamics, movement and suspension of macro-molecules, cell deformation and migration); environmental and geophysical flows (e.g., saturated and unsaturated flows in porous media and fractures); and free surface flows with possible interacting solid objects (e.g., wave impact, liquid sloshing, water entry and exit, oil spill and boom movement). The presented methodologies, techniques and example applications will benefit students, researchers and professionals in computational engineering and sciences.
Book Synopsis Modeling and Simulation of Particle Dispersions with Smoothed Dissipative Particle Dynamics by : Xin Bian
Download or read book Modeling and Simulation of Particle Dispersions with Smoothed Dissipative Particle Dynamics written by Xin Bian and published by . This book was released on 2014 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Particle Deposition and Aggregation by : M. Elimelech
Download or read book Particle Deposition and Aggregation written by M. Elimelech and published by Elsevier. This book was released on 1998-08-07 with total page 459 pages. Available in PDF, EPUB and Kindle. Book excerpt: Deposition and aggregation of small solid particles are encountered in many natural and industrial environments. Whether it be deposition of particles onto a surface immersed in a liquid suspension or aggregateion of individual particles, these processes are of enotmous significance. They are vital to the manufacture of magnetic tape, purification of water using packed bed filters, selective capture of solids, cells and macromolecular species, and many other applications. This book presents a unified approach to the measurement, modelling and simulation of these processes, bringing together the disciplines of colliod and surface chemistry, hydrodynamics, and experimental and computational methods. It will be required reading for graduates working in process and environmental engineering, postgraduates involved in industrial R & D and for all scientists wishing to gain a more detailed and realistic understanding of process conditions in these areas.
Book Synopsis Dissipative Particle Dynamics Simulation for Self-assembly of Polymer and Surfactant Solution by : Ming-Tsung Lee
Download or read book Dissipative Particle Dynamics Simulation for Self-assembly of Polymer and Surfactant Solution written by Ming-Tsung Lee and published by . This book was released on 2015 with total page 131 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Particles in Wall-Bounded Turbulent Flows: Deposition, Re-Suspension and Agglomeration by : Jean-Pierre Minier
Download or read book Particles in Wall-Bounded Turbulent Flows: Deposition, Re-Suspension and Agglomeration written by Jean-Pierre Minier and published by Springer. This book was released on 2016-08-09 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book presents an up-to-date review of turbulent two-phase flows with the dispersed phase, with an emphasis on the dynamics in the near-wall region. New insights to the flow physics are provided by direct numerical simuation and by fine experimental techniques. Also included are models of particle dynamics in wall-bounded turbulent flows, and a description of particle surface interactions including muti-layer deposition and re-suspension.
Book Synopsis Modeling and Simulation of Particle Agglomeration, Droplet Coalescence and Particle-Wall Adhesion in Turbulent Multiphase Flows by : Naser Almohammed
Download or read book Modeling and Simulation of Particle Agglomeration, Droplet Coalescence and Particle-Wall Adhesion in Turbulent Multiphase Flows written by Naser Almohammed and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Parallelization of a Dissipative Particle Dynamics Application in a Partitioned Global Address Space Environment by : Karthik Raj Saanthalingam
Download or read book Parallelization of a Dissipative Particle Dynamics Application in a Partitioned Global Address Space Environment written by Karthik Raj Saanthalingam and published by . This book was released on 2012 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: Molecular dynamics simulation provides the methodology for detailed microscopic modeling on the molecular scale. The nature of matter is to be found in the structure and motion of its constituent building blocks, and the dynamics is contained in the solution to the N-body problem. Given that the classical N-body problem lacks a general analytical solution, the only path open is the numerical one. Scientists engaged in studying matter at this level require computational tools to allow them to follow the movement of individual molecules and it is this need that the molecular dynamics approach aims to fulfill. The Molecular Dynamics method follows a constructive approach by trying to reproduce the microscopic behavior of matter using model systems rather than deduce the behavior directly from experiment. Dissipative particle dynamics (DPD) is a stochastic simulation method for soft materials and has been applied to a variety of simulations. Doubts about its adequacy due to upper coarse-graining limitations, which could prevent the method from being applicable to the whole mesoscopic range has led to the proposal for a modified coarse-grained level tunable DPD method that demonstrates its performance for linear polymeric systems. The proposed method models the system through the interaction between the particles as a result of interparticle forces. The calculation region size is non-trivial and can vary depending on the simulation strategy adopted and hence greatly affects the performance of the application. Simulations of very large systems, approaching a cubic micron for milliseconds, are possible using a parallel implementation of DPD running on multiple processors. Because of the short-range nature of forces in DPD an efficient way to parallelize the application is to adopt a special decomposition technique. In this scheme, the total simulation space is divided into a number of cuboidal regions which are distributed across the processes in the cluster. Each processor is responsible for integrating the equations of motion of all particles that lie within its region of space. Only particles lying near the boundaries of each processor's space require communication between processors. In order to ensure that the simulation is efficient, the crucial requirement is that the number of particle-particle interactions that require inter-processor communication be much smaller than the number of particle-particle interactions within the bulk of each processor's region of space. In this thesis we outline the various alternatives to increase the per-node utilization and reduce the communication bottlenecks in each time step of the computation so as to achieve a near uniform distribution of work among the processes. A partitioned global address space (PGAS) model is deployed in the parallelization strategy so that the system can be logically portioned among the processors. The novelty of PGAS is that the portions of the shared memory space may have an affinity for a particular thread, thereby exploiting locality of reference and thereby reducing the communication overhead.
Book Synopsis Meshfree Methods for Partial Differential Equations VI by : Michael Griebel
Download or read book Meshfree Methods for Partial Differential Equations VI written by Michael Griebel and published by Springer Science & Business Media. This book was released on 2012-12-16 with total page 243 pages. Available in PDF, EPUB and Kindle. Book excerpt: Meshfree methods are a modern alternative to classical mesh-based discretization techniques such as finite differences or finite element methods. Especially in a time-dependent setting or in the treatment of problems with strongly singular solutions their independence of a mesh makes these methods highly attractive. This volume collects selected papers presented at the Sixth International Workshop on Meshfree Methods held in Bonn, Germany in October 2011. They address various aspects of this very active research field and cover topics from applied mathematics, physics and engineering.
Book Synopsis Dynamic Simulation of Suspended Particles and Drops at Finite Reynolds Numbers by Dissipative Particle Dynamics by : JaeMo Kim
Download or read book Dynamic Simulation of Suspended Particles and Drops at Finite Reynolds Numbers by Dissipative Particle Dynamics written by JaeMo Kim and published by . This book was released on 2003 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dissipative Particle Dynamics Simulations to Model Amorphous Nanoparticles by : Stephen Eric Weitzner
Download or read book Dissipative Particle Dynamics Simulations to Model Amorphous Nanoparticles written by Stephen Eric Weitzner and published by . This book was released on 2013 with total page 121 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis CRC Handbook of Thermal Engineering by : Raj P. Chhabra
Download or read book CRC Handbook of Thermal Engineering written by Raj P. Chhabra and published by CRC Press. This book was released on 2017-11-08 with total page 1649 pages. Available in PDF, EPUB and Kindle. Book excerpt: The CRC Handbook of Thermal Engineering, Second Edition, is a fully updated version of this respected reference work, with chapters written by leading experts. Its first part covers basic concepts, equations and principles of thermodynamics, heat transfer, and fluid dynamics. Following that is detailed coverage of major application areas, such as bioengineering, energy-efficient building systems, traditional and renewable energy sources, food processing, and aerospace heat transfer topics. The latest numerical and computational tools, microscale and nanoscale engineering, and new complex-structured materials are also presented. Designed for easy reference, this new edition is a must-have volume for engineers and researchers around the globe.
Book Synopsis Many-body Dissipative Particle Dynamics Simulation of Capillary Pinch-off by :
Download or read book Many-body Dissipative Particle Dynamics Simulation of Capillary Pinch-off written by and published by . This book was released on 2011 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dissipative Particle Dynamics as a Simulation Tool for Capillary Wetting and Suspensions in Microfluidic Applications by : Claudio Giorgio Cupelli
Download or read book Dissipative Particle Dynamics as a Simulation Tool for Capillary Wetting and Suspensions in Microfluidic Applications written by Claudio Giorgio Cupelli and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Numerical Simulation of Particle Collision and Agglomeration in Turbulent Channel Flows by : Tosanbami Ogholaja
Download or read book Numerical Simulation of Particle Collision and Agglomeration in Turbulent Channel Flows written by Tosanbami Ogholaja and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Numerical Methods for Fluid Dynamics VI by : Michael John Baines
Download or read book Numerical Methods for Fluid Dynamics VI written by Michael John Baines and published by . This book was released on 1998 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis New Simulation Strategies for the Dynamics of Complex Fluids by : J. Bonet Avalos
Download or read book New Simulation Strategies for the Dynamics of Complex Fluids written by J. Bonet Avalos and published by . This book was released on 1998 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt:
