Molecular And Particle Modelling Of Laminar And Turbulent Flows PDF Download

Author: Donald Greenspan
Publisher: World Scientific
ISBN: 9814481408
Category : Mathematics
Languages : en
Pages : 179

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Book Description
Turbulence is the most fundamental and, simultaneously, the most complex form of fluid flow. However, because an understanding of turbulence requires an understanding of laminar flow, both are explored in this book.Groundwork is laid by careful delineation of the necessary physical, mathematical, and numerical requirements for the studies which follow, and include discussions of N-body problems, classical molecular mechanics, dynamical equations, and the leap frog formulas for very large systems of second order ordinary differential equations.Molecular systems are studied first in both two and three dimensions. Extension into the large is also of great interest, and it is for this purpose that we develop particle mechanics, which uses lump massing of molecules. All calculations are limited to a personal scientific computer, so that the methods can be utilized readily by others.

Author: Donald Greenspan
Publisher: World Scientific
ISBN: 9812560963
Category : Mathematics
Languages : en
Pages : 179

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Book Description
Turbulence is the most fundamental and, simultaneously, the most complex form of fluid flow. However, because an understanding of turbulence requires an understanding of laminar flow, both are explored in this book.Groundwork is laid by careful delineation of the necessary physical, mathematical, and numerical requirements for the studies which follow, and include discussions of N-body problems, classical molecular mechanics, dynamical equations, and the leap frog formulas for very large systems of second order ordinary differential equations.Molecular systems are studied first in both two and three dimensions. Extension into the large is also of great interest, and it is for this purpose that we develop particle mechanics, which uses lump massing of molecules. All calculations are limited to a personal scientific computer, so that the methods can be utilized readily by others.

Author: Yihuan Yan
Publisher: Springer Nature
ISBN: 9819922569
Category : Technology & Engineering
Languages : en
Pages : 336

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Book Description
This book aims to predict and model the transport of bioaerosols, identify their transmission characteristics, and assess occupants’ infection risks. Although existing epidemiological books provide fundamental infection rate of existing diseases, the ability of predicting emerging disease transmission in the air and assessing occupants’ infection risks to the bioaerosols is significantly lacking. This book is considered as a professional book that provides in-depth discussion of the aforementioned issues and provides potential approaches to solve these issues would be highly demanded by readers in this emerging research field. This book offers essential and systematic analysis on the fate of bioaerosols from their release in the air to the final destination in human’s respiratory systems through direct 3D visualizations techniques. It also provides quantifiable method to assess each occupant’s infection risks to the infectious bioaerosols in indoor environments. The readers will gain essential fundamental characteristics of bioaerosols (active time, viability, etc.) and will gain the advanced skills on how to integrate these properties into numerical modeling and assess the occupants’ exposure risks.

Author: M. Bazin
Publisher: CRC Press
ISBN: 1351084097
Category : Science
Languages : en
Pages : 159

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Book Description
Physiological Models in Microbiology consists of two volumes. Volume I considers models of basic growth processes and the effects of environmental factors on microbial growth. Volume II describes models of secondary processes, in particular, microbial death, spore germination, chemotaxis, and surface growth.

Author: Shankar Subramaniam
Publisher: Academic Press
ISBN: 0323901344
Category : Technology & Engineering
Languages : en
Pages : 588

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Book Description
Modelling Approaches and Computational Methods for Particle-laden Turbulent Flows introduces the principal phenomena observed in applications where turbulence in particle-laden flow is encountered while also analyzing the main methods for analyzing numerically. The book takes a practical approach, providing advice on how to select and apply the correct model or tool by drawing on the latest research. Sections provide scales of particle-laden turbulence and the principal analytical frameworks and computational approaches used to simulate particles in turbulent flow. Each chapter opens with a section on fundamental concepts and theory before describing the applications of the modelling approach or numerical method. Featuring explanations of key concepts, definitions, and fundamental physics and equations, as well as recent research advances and detailed simulation methods, this book is the ideal starting point for students new to this subject, as well as an essential reference for experienced researchers. - Provides a comprehensive introduction to the phenomena of particle laden turbulent flow - Explains a wide range of numerical methods, including Eulerian-Eulerian, Eulerian-Lagrange, and volume-filtered computation - Describes a wide range of innovative applications of these models

Author: V. Kumaran
Publisher: Cambridge University Press
ISBN: 1009276646
Category : Technology & Engineering
Languages : en
Pages : 516

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Book Description
The study of transport phenomena is an essential part of chemical engineering, as well as other disciplines concerned with material transformations such as biomedical engineering, microfluidics, reactor design and metallurgy. Material transformations require the motion of constituents relative to each other, the transfer of heat across materials and fluid flow. This lucid textbook introduces the student to the fundamentals and applications of transport phenomena in a single volume and explains how the outcomes of transformation processes depend on fluid flow and heat/mass transfer. It demonstrates the progression from physical concepts to the mathematical formulation, followed by the solution techniques for predicting outcomes in industrial applications. The ordering of the topics, gradual build-up of complexity and easy to read language make it a vital resource for anyone looking for an introduction to the domain. It also provides a foundation for advanced courses in fluid mechanics, multiphase flows and turbulence.

Author: Nikolaos D. Katopodes
Publisher: Butterworth-Heinemann
ISBN: 0128162511
Category : Technology & Engineering
Languages : en
Pages : 1022

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Book Description
Free Surface Flow: Environmental Fluid Mechanics introduces a wide range of environmental fluid flows, such as water waves, land runoff, channel flow, and effluent discharge. The book provides systematic analysis tools and basic skills for study fluid mechanics in natural and constructed environmental flows. As the prediction of changes in free surfaces in rivers, lakes, estuaries and in the ocean directly affects the design of structures that control surface waters, and because planning for the allocation of fresh-water resources in a sustainable manner is an essential goal, this book provides the necessary background and research. - Helps users determine the transfer of solute mass through the air-water interface - Presents tactics on the impact of free shear flow in the environment and how to quantify mixing mechanisms in turbulent jets and wakes - Gives users tactics to predict the fate and transport of contaminants in stratified lakes and estuaries

Author: Ashim Dutta
Publisher: BoD – Books on Demand
ISBN: 1837699968
Category : Science
Languages : en
Pages : 222

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Book Description
In modern times, rheology has emerged as a powerful tool for materials scientists to explore the properties of soft matter or complex fluids, including such diverse materials as food, cosmetics, polymers, lubricants, drilling fluids and biological systems. Rheology parameters such as shear modulus (G’), storage modulus (G”) and viscosity (η), together with microscopic imaging, provide considerable insight into the structure-property relationship in these materials. This in turn helps design materials with properties tailored to multiple applications. This book is a compilation of works by experts in their respective areas of specialization and covers a wide range of applications. The book will be useful both to experts in this area of research and to newcomers from a range of specializations.

Author: J.R. Gaines
Publisher: Elsevier
ISBN: 0128233931
Category : Science
Languages : en
Pages : 359

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Book Description
Fundamentals of Vacuum Science and System Design for High and Ultra-High Vacuum, Volume 1: Introduction to Vacuum and Systems details the important practical considerations in design of vacuum systems for various vacuum deposition technologies. Topics covered include: Introduction to vaccum and end uses, molecular density in vacuum, molecular flow in various vacuum regimes, characteristics of gas composition at various molecular densities, general principles of gas-solid interactions, vacuum pump technology, pressure sensors, leak detection and the impact of fundamental design decisions and operating practices on vacuum system performance. The introductory sections are designed to introduce the reader to basic concepts in vacuum technology. More detailed sections provide fundamental descriptions of basic vacuum pumps and pumping mechanisms in current practice and provides insight into the various pros and cons for each approach. System design, assembly, maintenance, and trouble-shooting are reviewed in detail. This volume also describes a wide range of pressure measurement approaches, and includes several key characterization techniques, example applications on systems for rough vacuum, high vacuum and ultra-high vacuum, as well as trade-offs in system design, allowing for the reader to develop an understanding of all the elements required for a successfully designed, assembled, and operating system. - Covers vacuum pump technology, taking a system from atmosphere down to high or ultra-high vacuum - Discusses the fundamental descriptions of vacuum pumps and pumping mechanisms in current practice and provides insight into the various pros and cons for each approach - Provides an overview of practical vacuum system operating techniques that will ensure optimal performance and troubleshooting methods to identify system deficiencies

Author: E. Becker
Publisher: Springer Science & Business Media
ISBN: 3642655904
Category : Science
Languages : en
Pages : 375

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Book Description
The Thirteenth International Congress of Theoretical and Applied Mechanics was held in Moscow from Monday, 21 August, to Saturday, 26 August 1972. About 2500 participants from 37 countries all over the world attended the congress that was convened by the Congress Committee of the International Union of Theoretical and Applied Mechanics. The local or ganization lay in the hands of the Organizing Committee, established by the USSR National Committee on Theoretical and Applied Mechanics. The USSR Academy of Sciences rendered partial financial help to the organization of th8 congress. The Organizing Committee was assisted by the Institute of Problems of Mechanics of the USSR Academy of Sciences, by the Research Institute for Mechanics of Moscow University, and by the Computing Center and the Institute of Applied Mathematics of the USSR Academy of Sciences. The Bureau of IUTAM had allocated a considerable sum for partial financial support of young scientists attending the congress. The Thirteenth Congress was officially opened on Monday morning at the Kremlin Palace of Congresses by Academician N. 1. Muskhelishvili, President of the Congress, and Professor W. T. Koiter, President of IUTAM. Greeting addresses were offered by: Mr. K. N. Rudnev, Minister, member of the Council of Ministers of the USSR, Academician M. V. Keldysh, President of the USSR Academy of Sciences, Mr. L. N.