The Essence Of Turbulence As A Physical Phenomenon

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The Essence of Turbulence as a Physical Phenomenon

Arkady Tsinober
The Essence of Turbulence as a Physical Phenomenon Book PDF

Author : Arkady Tsinober
Publisher : Springer Science & Business Media
Page : 171 pages
File Size : 47,6 Mb
Release : 2013-08-23
Category : Technology & Engineering
ISBN : 9789400771802

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The Essence of Turbulence as a Physical Phenomenon by Arkady Tsinober Pdf

This book critically reexamines what turbulence really is, from a fundamental point of view and based on observations from nature, laboratories, and direct numerical simulations. It includes critical assessments and a comparative analysis of the key developments, their evolution and failures, along with key misconceptions and outdated paradigms. The main emphasis is on conceptual and problematic aspects, physical phenomena, observations, misconceptions and unresolved issues rather than on conventional formalistic aspects, models, etc. Apart from the obvious fundamental importance of turbulent flows, this emphasis stems from the basic premise that without corresponding progress in fundamental aspects there is little chance for progress in applications such as drag reduction, mixing, control and modeling of turbulence. More generally, there is also a desperate need to grasp the physical fundamentals of the technological processes in which turbulence plays a central role.

The Essence of Turbulence As a Physical Phenomenon: with Emphasis on Issues of Paradigmatic Nature

Arkady Tsinober
The Essence of Turbulence As a Physical Phenomenon with Emphasis on Issues of Paradigmatic Nature Book PDF

Author : Arkady Tsinober
Publisher : Unknown
Page : 169 pages
File Size : 55,9 Mb
Release : 2013
Category : Science
ISBN : 130620240X

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The Essence of Turbulence As a Physical Phenomenon: with Emphasis on Issues of Paradigmatic Nature by Arkady Tsinober Pdf

This book critically reexamines what turbulence really is, from a fundamental point of view and based on observations from nature, laboratories, and direct numerical simulations. It includes critical assessments and a comparative analysis of the key developments, their evolution and failures, along with key misconceptions and outdated paradigms. The main emphasis is on conceptual and problematic aspects, physical phenomena, observations, misconceptions and unresolved issues rather than on conventional formalistic aspects, models, etc. Apart from the obvious fundamental importance of turbulent flows, this emphasis stems from the basic premise that without corresponding progress in fundamental aspects there is little chance for progress in applications such as drag reduction, mixing, control and modeling of turbulence. More generally, there is also a desperate need to grasp the physical fundamentals of the technological processes in which turbulence plays a central role.

The Essence of Turbulence as a Physical Phenomenon

Arkady Tsinober
The Essence of Turbulence as a Physical Phenomenon Book PDF

Author : Arkady Tsinober
Publisher : Springer
Page : 229 pages
File Size : 41,8 Mb
Release : 2018-12-17
Category : Technology & Engineering
ISBN : 9783319995311

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The Essence of Turbulence as a Physical Phenomenon by Arkady Tsinober Pdf

Now in its second edition, this book clearly, concisely and comprehensively outlines the essence of turbulence. In view of the absence of a theory based on first principles and adequate tools to handle the problem, the “essence” of turbulence, i.e. what turbulence really is from a fundamental point of view, is understood empirically through observations from nature, laboratories and direct numerical simulations rather than explained by means of conventional formalistic aspects, models, etc., resulting in pertinent issues being described at a highly theoretical level in spite of the mentioned lack of theory. As such, the book highlights and critically reexamines fundamental issues, especially those of paradigmatic nature, related to conceptual and problematic aspects, key misconceptions and unresolved matters, and discusses why the problem is so difficult. As in the previous edition, the focus on fundamental issues is also a consequence of the view that without corresponding advances in fundamental aspects there is little chance of progress in any applications. More generally there is a desperate need for physical fundamentals of a great variety of processes in nature and technology in which turbulence plays a central role. Turbulence is omnipresent throughout the natural sciences and technology, but despite the vast sea of information available the book retains its brevity without oversimplifications, making it of interest to a broad audience.

An Informal Introduction to Turbulence

A. Tsinober
An Informal Introduction to Turbulence Book PDF

Author : A. Tsinober
Publisher : Springer Science & Business Media
Page : 328 pages
File Size : 45,8 Mb
Release : 2006-04-11
Category : Science
ISBN : 9780306483844

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An Informal Introduction to Turbulence by A. Tsinober Pdf

To Turbulence by ARKADY TSINOBER Department of Fluid Mechanics, Faculty of Engineering, Tel Aviv University, Tel Aviv, Israel KLUWER ACADEMIC PUBLISHERS NEW YORK, BOSTON, DORDRECHT, LONDON, MOSCOW eBookISBN: 0-306-48384-X Print ISBN: 1-4020-0110-X ©2004 Kluwer Academic Publishers NewYork, Boston, Dordrecht, London, Moscow Print ©2001 Kluwer Academic Publishers Dordrecht All rights reserved No part of this eBook maybe reproducedor transmitted inanyform or byanymeans, electronic, mechanical, recording, or otherwise, without written consent from the Publisher Created in the United States of America Visit Kluwer Online at: http://kluweronline. com and Kluwer's eBookstoreat: http://ebooks. kluweronline. com TO My WITS TABLE OF CONTENTS 1 INTRODUCTION 1 Brief history 1 1. 1 1. 2 Nature and major qualitative universal features of turbulent flows 2 1. 2. 1 Representative examples of turbulent flows 2 1. 2. 2 In lieu of definition: major qualitative universal f- tures of turbulent flows 15 1. 3 Why turbulence is so impossibly difficult? The three N's 19 On the Navier-Stokes equations 19 1. 3. 1 1. 3. 2 On the nature of the problem 21 1. 3. 3 Nonlinearity 22 1. 3. 4 Noninegrability 22 Nonlocality 1. 3. 5 23 1. 3. 6 On physics of turbulence 24 1. 3. 7 On statistical theories 24 1. 4 Outline of the following material 25 1. 5 In lieu of summary 26 2 ORIGINS OF TURBULENCE 27 2. 1 Instability 27 2. 2 Transition to turbulence versus routes to chaos 29 2.

An Informal Conceptual Introduction to Turbulence

Arkady Tsinober
An Informal Conceptual Introduction to Turbulence Book PDF

Author : Arkady Tsinober
Publisher : Springer Science & Business Media
Page : 475 pages
File Size : 47,7 Mb
Release : 2009-08-29
Category : Technology & Engineering
ISBN : 9789048131747

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An Informal Conceptual Introduction to Turbulence by Arkady Tsinober Pdf

This fully revised second edition focuses on physical phenomena and observations in turbulence, and is focused on reversing misconceptions and ill-defined concepts. New topics include ergodicity, Eulerian versus Lagrangian descriptions, theory validation, and anomalous scaling.

Nonlinear, Nonlocal and Fractional Turbulence

Peter William Egolf,Kolumban Hutter
Nonlinear Nonlocal and Fractional Turbulence Book PDF

Author : Peter William Egolf,Kolumban Hutter
Publisher : Springer Nature
Page : 487 pages
File Size : 55,5 Mb
Release : 2020-04-02
Category : Science
ISBN : 9783030260330

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Nonlinear, Nonlocal and Fractional Turbulence by Peter William Egolf,Kolumban Hutter Pdf

Experts of fluid dynamics agree that turbulence is nonlinear and nonlocal. Because of a direct correspondence, nonlocality also implies fractionality. Fractional dynamics is the physics related to fractal (geometrical) systems and is described by fractional calculus. Up-to-present, numerous criticisms of linear and local theories of turbulence have been published. Nonlinearity has established itself quite well, but so far only a very small number of general nonlocal concepts and no concrete nonlocal turbulent flow solutions were available. This book presents the first analytical and numerical solutions of elementary turbulent flow problems, mainly based on a nonlocal closure. Considerations involve anomalous diffusion (Lévy flights), fractal geometry (fractal-β, bi-fractal and multi-fractal model) and fractional dynamics. Examples include a new ‘law of the wall’ and a generalization of Kraichnan’s energy-enstrophy spectrum that is in harmony with non-extensive and non-equilibrium thermodynamics (Tsallis thermodynamics) and experiments. Furthermore, the presented theories of turbulence reveal critical and cooperative phenomena in analogy with phase transitions in other physical systems, e.g., binary fluids, para-ferromagnetic materials, etc.; the two phases of turbulence identifying the laminar streaks and coherent vorticity-rich structures. This book is intended, apart from fluids specialists, for researchers in physics, as well as applied and numerical mathematics, who would like to acquire knowledge about alternative approaches involved in the analytical and numerical treatment of turbulence.

Introduction to Turbulent Transfer of Particles, Temperature and Magnetic Fields

Igor Rogachevskii
Introduction to Turbulent Transfer of Particles Temperature and Magnetic Fields Book PDF

Author : Igor Rogachevskii
Publisher : Cambridge University Press
Page : 271 pages
File Size : 45,8 Mb
Release : 2021-08-05
Category : SCIENCE
ISBN : 9781316518601

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Introduction to Turbulent Transfer of Particles, Temperature and Magnetic Fields by Igor Rogachevskii Pdf

Introducing key concepts in turbulent transport with an overview of analytical and statistical tools to advanced graduates and researchers.

Analyses of Turbulence in the Neutrally and Stably Stratified Planetary Boundary Layer

Cedrick Ansorge
Analyses of Turbulence in the Neutrally and Stably Stratified Planetary Boundary Layer Book PDF

Author : Cedrick Ansorge
Publisher : Springer
Page : 171 pages
File Size : 48,7 Mb
Release : 2016-09-15
Category : Science
ISBN : 9783319450445

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Analyses of Turbulence in the Neutrally and Stably Stratified Planetary Boundary Layer by Cedrick Ansorge Pdf

This thesis presents a study of strong stratification and turbulence collapse in the planetary boundary layer, opening a new avenue in this field. It is the first work to study all regimes of stratified turbulence in a unified simulation framework without a break in the paradigms for representation of turbulence. To date, advances in our understanding and the parameterization of turbulence in the stable boundary layer have been hampered by difficulties simulating the strongly stratified regime, and the analysis has primarily been based on field measurements. The content presented here changes that paradigm by demonstrating the ability of direct numerical simulation to address this problem, and by doing so to remove the uncertainty of turbulence models from the analysis. Employing a stably stratified Ekman layer as a simplified physical model of the stable boundary layer, the three stratification regimes observed in nature— weakly, intermediately and strongly stratified—are reproduced, and the data is subsequently used to answer key, long-standing questions. The main part of the book is organized in three sections, namely a comprehensive introduction, numerics, and physics. The thesis ends with a clear and concise conclusion that distills specific implications for the study of the stable boundary layer. This structure emphasizes the physical results, but at the same time gives relevance to the technical aspects of numerical schemes and post-processing tools. The selection of the relevant literature during the introduction, and its use along the work appropriately combines literature from two research communities: fluid dynamics, and boundary-layer meteorology.

Turbulence and Related Phenomena

Regis Barille
Turbulence and Related Phenomena Book PDF

Author : Regis Barille
Publisher : BoD – Books on Demand
Page : 94 pages
File Size : 48,7 Mb
Release : 2019-04-17
Category : Science
ISBN : 9781838800178

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Turbulence and Related Phenomena by Regis Barille Pdf

This book presents some of the most important results concerning atmospheric turbulence and some of its effects on the propagation of a light beam. Atmospheric turbulence causes fluctuations in both the intensity and the phase of the beam and still must be understood and modelized for applications in photonics or environmental metrology. The future of free-space optical (FSO) communication through atmospheric turbulence channels is especially of interest and research on high bit-rate communications attracts more and more interest as an alternative to radio links because of bandwidth, spectrum, and security issues. Some of the current solutions for improving FSO communications are presented in this book.

Physics Avoidance

Mark Wilson
Physics Avoidance Book PDF

Author : Mark Wilson
Publisher : Oxford University Press
Page : 376 pages
File Size : 53,8 Mb
Release : 2017-10-20
Category : Philosophy
ISBN : 9780192525246

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Physics Avoidance by Mark Wilson Pdf

Mark Wilson presents a series of explorations of our strategies for understanding the world. "Physics avoidance" refers to the fact that we frequently cannot reason about nature in the straightforward manner we anticipate, but must seek alternative policies that allow us to address the questions we want answered in a tractable way. Within both science and everyday life, we find ourselves relying upon thought processes that reach useful answers in opaque and roundabout manners. Conceptual innovators are often puzzled by the techniques they develop, when they stumble across reasoning patterns that are easy to implement but difficult to justify. But simple techniques frequently rest upon complex foundations—a young magician learns how to execute a card-guessing trick without understanding how its progressive steps squeeze in on a proper answer. As we collectively improve our inferential skills in this gradually evolving manner, we often wander into unfamiliar explanatory landscapes in which simple words encode physical information in complex and unanticipated ways. Like our juvenile conjurer, we fail to recognize the true strategic rationales underlying our achievements and may turn instead to preposterous rationalizations for our policies. We have learned how to reach better conclusions in a more fruitful way, but we remain baffled by our own successes. At its best, philosophical reflection illuminates the natural developmental processes that generate these confusions and explicates their complexities. But current thinking within philosophy of science and language works to opposite effect by relying upon simplistic conceptions of "cause", "law of nature", "possibility", and "reference" that ignore the strategic complexities in which these concepts become entangled within real life usage. To avoid these distortions, better descriptive tools are required in philosophy. The nine new essays within this volume illustrate this need for finer discriminations through a range of revealing cases, of both historical and contemporary significance.

Progress in Hybrid RANS-LES Modelling

Yannick Hoarau,Shia-Hui Peng,Dieter Schwamborn,Alistair Revell
Progress in Hybrid RANS LES Modelling Book PDF

Author : Yannick Hoarau,Shia-Hui Peng,Dieter Schwamborn,Alistair Revell
Publisher : Springer
Page : 524 pages
File Size : 49,6 Mb
Release : 2018-03-09
Category : Technology & Engineering
ISBN : 9783319700311

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Progress in Hybrid RANS-LES Modelling by Yannick Hoarau,Shia-Hui Peng,Dieter Schwamborn,Alistair Revell Pdf

This book reports on the latest developments in computational fluid dynamics and turbulence modeling, with a special emphasis on hybrid RANS-LES methods and their industrial applications. It gathers the proceedings of the Sixth Symposium on Hybrid RANS-LES Methods, held on September 26-28 in Strasbourg, France. The different chapters covers a wealth of topics such as flow control, aero-acoustics, aero-elasticity and CFD-based multidisciplinary optimization. Further topics include wall-modelled Large Eddy Simulation (WMLES), embedded LES, Lattice-Bolzman methods, turbulence-resolving applications and comparisons between LES, hybrid RANS-LES and URANS methods. The book addresses academic researchers, graduate students, industrial engineers, as well as industrial R&D managers and consultants dealing with turbulence modelling, simulation and measurement, and with multidisciplinary applications of computational fluid dynamics.

Hydrodynamic Instabilities and Turbulence

Ye Zhou
Hydrodynamic Instabilities and Turbulence Book PDF

Author : Ye Zhou
Publisher : Cambridge University Press
Page : 611 pages
File Size : 50,8 Mb
Release : 2024-05-31
Category : Mathematics
ISBN : 9781108489645

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Hydrodynamic Instabilities and Turbulence by Ye Zhou Pdf

The first comprehensive reference guide to turbulent mixing driven by Rayleigh-Taylor, Richtmyer-Meshkov and Kelvin-Helmholtz instabilities.

Turbulence Phenomena

J.T. Davies
Turbulence Phenomena Book PDF

Author : J.T. Davies
Publisher : Elsevier
Page : 425 pages
File Size : 42,8 Mb
Release : 2012-12-02
Category : Technology & Engineering
ISBN : 9780323150934

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Turbulence Phenomena by J.T. Davies Pdf

Turbulence Phenomena provides an introduction to the eddy transfer of momentum, mass, and heat, specifically at interfaces. The approach of the discussion of the subject matter is based on the eddy mixing length concept of Prandtl. Chapter 1 begins with a discussion on basic concepts regarding liquid flow such as viscosity, turbulent flows, and velocities. As concepts and theories are established, the book then discusses the eddy transfer in fluids, specifically eddy transfer of mass and heat within fluids and eddy transfer near solid surfaces. The concept of eddies in different surfaces is discussed in length all throughout numerous chapters. These different surfaces include clean gas-liquid surfaces, clean liquid-liquid interfaces, and film-covered surfaces. The last few chapters focus on the more detailed discussion on turbulence, such as the concept of spontaneous interfacial turbulence and emulsification and turbulent dispersion and coalescence. The book will be of great use to undergraduate students of chemical engineering, physics, and chemistry.

Mathematical and Physical Theory of Turbulence

John Cannon,Bhimsen Shivamoggi
Mathematical and Physical Theory of Turbulence Book PDF

Author : John Cannon,Bhimsen Shivamoggi
Publisher : CRC Press
Page : 208 pages
File Size : 44,6 Mb
Release : 2006-06-15
Category : Science
ISBN : 9781420014976

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Mathematical and Physical Theory of Turbulence by John Cannon,Bhimsen Shivamoggi Pdf

Although the current dynamical system approach offers several important insights into the turbulence problem, issues still remain that present challenges to conventional methodologies and concepts. These challenges call for the advancement and application of new physical concepts, mathematical modeling, and analysis techniques. Bringing together experts from physics, applied mathematics, and engineering, Mathematical and Physical Theory of Turbulence discusses recent progress and some of the major unresolved issues in two- and three-dimensional turbulence as well as scalar compressible turbulence. Containing introductory overviews as well as more specialized sections, this book examines a variety of turbulence-related topics. The authors concentrate on theory, experiments, computational, and mathematical aspects of Navier–Stokes turbulence; geophysical flows; modeling; laboratory experiments; and compressible/magnetohydrodynamic effects. The topics discussed in these areas include finite-time singularities and inviscid dissipation energy; validity of the idealized model incorporating local isotropy, homogeneity, and universality of small scales of high Reynolds numbers, Lagrangian statistics, and measurements; and subrigid-scale modeling and hybrid methods involving a mix of Reynolds-averaged Navier–Stokes (RANS), large-eddy simulations (LES), and direct numerical simulations (DNS). By sharing their expertise and recent research results, the authoritative contributors in Mathematical and Physical Theory of Turbulence promote further advances in the field, benefiting applied mathematicians, physicists, and engineers involved in understanding the complex issues of the turbulence problem.

Turbulence and Self-Organization

Mikhail Ya Marov,Aleksander V. Kolesnichenko
Turbulence and Self Organization Book PDF

Author : Mikhail Ya Marov,Aleksander V. Kolesnichenko
Publisher : Springer Science & Business Media
Page : 682 pages
File Size : 40,8 Mb
Release : 2013-01-16
Category : Science
ISBN : 9781461451556

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Turbulence and Self-Organization by Mikhail Ya Marov,Aleksander V. Kolesnichenko Pdf

The book deals with the development of continual models of turbulent natural media. Such models serve as a ground for the statement and numerical evaluation of the key problems of the structure and evolution of the numerous astrophysical and geophysical objects. The processes of ordering (self-organization) in an originally chaotic turbulent medium are addressed and treated in detail with the use of irreversible thermodynamics and stochastic dynamics approaches which underlie the respective models. Different examples of ordering set up in the natural environment and outer space are brought and thoroughly discussed, the main focus being given to the protoplanetary discs formation and evolution.