Statistics and Dynamics of Coherent Structures on Turbulent Grid-flow PDF Download

Author: Stuart Reid Loewen
Publisher:
ISBN:
Category : Coherent states
Languages : en
Pages : 248

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Book Description

Author: Jim Denier
Publisher: World Scientific
ISBN: 9814476455
Category : Science
Languages : en
Pages : 501

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Book Description
This book is based on the proceedings of the COSNet/CSIRO Workshop on Turbulence and Coherent Structures held at the Australian National University in Canberra in January 2006.It codifies recent developments in our understanding of the dynamics and statistical dynamics of turbulence and coherent structures in fluid mechanics, atmospheric and oceanic dynamics, plasma physics, and dynamical systems theory. It brings together articles by internationally acclaimed researchers from around the world including Dijkstra (Utrecht), Holmes (Princeton), Jimenez (UPM and Stanford), Krommes (Princeton), McComb (Edinburgh), Chong (Melbourne), Dewar (ANU), Watmuff (RMIT) and Frederiksen (CSIRO).The book will prove a useful resource for researchers as well as providing an excellent reference for graduate students working in this frontier area.

Author: David Hugh Chambers
Publisher:
ISBN:
Category :
Languages : en
Pages : 338

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Book Description

Author: J. C. Vassilicos
Publisher: Cambridge University Press
ISBN: 9780521792219
Category : Mathematics
Languages : en
Pages : 292

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Book Description
This volume was the product of a workshop held at the Newton Institute in Cambridge, and examines turbulence, intermittency, nonlinear dynamics and fluid mechanics.

Author: G. Biswas
Publisher: CRC Press
ISBN: 9780849310140
Category : Technology & Engineering
Languages : en
Pages : 478

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Book Description
This book allows readers to tackle the challenges of turbulent flow problems with confidence. It covers the fundamentals of turbulence, various modeling approaches, and experimental studies. The fundamentals section includes isotropic turbulence and anistropic turbulence, turbulent flow dynamics, free shear layers, turbulent boundary layers and plumes. The modeling section focuses on topics such as eddy viscosity models, standard K-E Models, Direct Numerical Stimulation, Large Eddy Simulation, and their applications. The measurement of turbulent fluctuations experiments in isothermal and stratified turbulent flows are explored in the experimental methods section. Special topics include modeling of near wall turbulent flows, compressible turbulent flows, and more.

Author: Alfredo Soldati
Publisher: Springer
ISBN: 370912574X
Category : Technology & Engineering
Languages : en
Pages : 319

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Book Description
Controlling turbulence is an important issue for a number of technological applications. Several methods to modulate turbulence are currently being investigated. This book describes various aspects of turbulence structure and modulation, and explains and discusses the most promising techniques in detail.

Author: Oleg Mikha?lovich Belot?serkovski?
Publisher: World Scientific
ISBN: 9812833013
Category : Science
Languages : en
Pages : 489

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Book Description
The book provides an original approach in the research of structural analysis of free developed shear compressible turbulence at high Reynolds number on the base of direct numerical simulation (DNS) and instability evolution for ideal medium (integral conservation laws) with approximate mechanism of dissipation (FLUX dissipative monotone ?upwind? difference schemes) and does not use any explicit sub-grid approximation and semi-empirical models of turbulence. Convective mixing is considered as a principal part of conservation law.Appropriate hydrodynamic instabilities (free developed shear turbulence) are investigated from unique point of view. It is based on the concept of large ordered structures with stochastic core of small scale developed turbulence (?turbulent spot?). Decay of ?turbulent spot? are simulated by Monte Carlo method. Proposed approach is based on two hypotheses: statistical independence of the characteristic of large ordered structures (LOS) and small-scale turbulence (ST) ?and? weak influence of molecular viscosity (or more generally, dissipative mechanism) on properties of large ordered structures.Two versions of instabilities, due to Rayleigh-Taylor and Richtmyer-Meshkov are studied detail by the three-dimensional calculations, extended to the large temporal intervals, up to turbulent stage and investigation turbulent mixing zone (TMZ).The book covers both the fundamental and practical aspects of turbulence and instability and summarizes the result of numerical experiments conducted over 30 years period with direct participation of the author.In the book are cited the opinions of the leading scientists in this area of research: Acad. A S Monin (Russia), Prof. Y Nakamura (Japan, Nagoya University) and Prof. F Harlow (USA, Los-Alamos).

Author: M. Lesieur
Publisher:
ISBN:
Category :
Languages : en
Pages : 12

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Book Description
This paper contended that there is no real contradiction between the predictions of the statistical theories of turbulence and the existence of coherent structures observed in various turbulent flows. The dynamics of these flows are characterized by a competition between the organizing action of external forces or instability mechanisms which tend to create the coherent structures, and an explosive growth of small scale three-dimensionality which tends to destroy them. The latter mechanism is analogous with the inverse cascade of error in the statistical theory of the predictability of two-dimensional turbulence. It follows that the coherent structures are intermittently destroyed by three-dimensional turbulence, then reform under the action of the instability. Three-dimensional turbulence renormalizes the viscosity acting on the large scales into an eddy-viscosity proportional to delta-where delta and U are, respectively, the characteristic scale and velocity of the coherent structures. This theory is developed taking the turbulent free shear layer as a test flow, but its extension to rotating turbulence is also envisaged.

Author: Eun-jin Kim
Publisher: MDPI
ISBN: 3039211080
Category : Mathematics
Languages : en
Pages : 300

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Book Description
This book is a printed edition of the Special Issue Intermittency and Self-Organisation in Turbulence and Statistical Mechanics that was published in Entropy

Author: Michel Deville
Publisher: Springer Science & Business Media
ISBN: 3642002625
Category : Technology & Engineering
Languages : en
Pages : 166

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Book Description
Contains seven keynote lectures of the TI 2006 conference that was held in Porquerolles, May 29-June 2, 2006. This book offers a view on theory, experiments and numerical simulations in the field of turbulence.