Small-scale Structures in Three-dimensional Hydrodynamic and Magnetohydrodynamic Turbulence

Small-scale Structures in Three-dimensional Hydrodynamic and Magnetohydrodynamic Turbulence PDF Author: M. Meneguzzi
Publisher:
ISBN: 9780387604862
Category : Hydrodynamics
Languages : en
Pages : 415

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Book Description

Small-Scale Structures in Three-Dimensional Hydrodynamic and Magnetohydrodynamic Turbulence

Small-Scale Structures in Three-Dimensional Hydrodynamic and Magnetohydrodynamic Turbulence PDF Author: Maurice Meneguzzi
Publisher: Springer
ISBN: 9783662140239
Category : Science
Languages : en
Pages : 421

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Book Description
Small-scale structures in turbulent flows appear as a subtle mixture of order and chaos that could play an important role in the energetics. The aim here is a better understanding of the similarities and differences between vortex and current dynamics, and of the influence of these structures on the statistical and transport properties of hydrodynamic and magnetohydrodynamic turbulence, with special concern for fusion plasmas, and solar or magnetospheric environments. Special emphasis is given to the intermittency at inertial scales and to the coherent structures at small scales. Magnetic reconnection and the dynamo effect are also discussed, together with the effect of stratification and inhomogeneity. The impact of hydrodynamic concepts on astro and geophysical observations are reviewed.

Small-Scale Structures in Three-Dimensional Hydrodynamic and Magnetohydrodynamic Turbulence

Small-Scale Structures in Three-Dimensional Hydrodynamic and Magnetohydrodynamic Turbulence PDF Author: Maurice Meneguzzi
Publisher: Springer
ISBN:
Category : Computers
Languages : en
Pages : 440

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Book Description
Small-scale structures in turbulent flows appear as a subtle mixture of order and chaos that could play an important role in the energetics. The aim here is a better understanding of the similarities and differences between vortex and current dynamics, and of the influence of these structures on the statistical and transport properties of hydrodynamic and magnetohydrodynamic turbulence, with special concern for fusion plasmas, and solar or magnetospheric environments. Special emphasis is given to the intermittency at inertial scales and to the coherent structures at small scales. Magnetic reconnection and the dynamo effect are also discussed, together with the effect of stratification and inhomogeneity. The impact of hydrodynamic concepts on astro and geophysical observations are reviewed.

Small-scale Structures in Three-dimensional Hydrodynamic and Magnetohydrodynamic Turbulence

Small-scale Structures in Three-dimensional Hydrodynamic and Magnetohydrodynamic Turbulence PDF Author: M. Meneguzzi
Publisher:
ISBN: 9780387604862
Category : Hydrodynamics
Languages : en
Pages : 415

Get Book Here

Book Description


Small-Scale Structure in Three-dimensional Hydrodynamic and Magnetohydrodynamic Turbulence

Small-Scale Structure in Three-dimensional Hydrodynamic and Magnetohydrodynamic Turbulence PDF Author: Maurice Meneguzzi
Publisher:
ISBN:
Category :
Languages : en
Pages : 421

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Book Description


Partial Differential Equations and Their Applications

Partial Differential Equations and Their Applications PDF Author: Peter Charles Greiner
Publisher: American Mathematical Soc.
ISBN: 9780821870143
Category : Mathematics
Languages : en
Pages : 332

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Book Description
Just list for purposes of NBB.

Constructive Modeling of Structural Turbulence and Hydrodynamic Instabilities

Constructive Modeling of Structural Turbulence and Hydrodynamic Instabilities PDF 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).

Advances in Turbulence VII

Advances in Turbulence VII PDF Author: Uriel Frisch
Publisher: Springer Science & Business Media
ISBN: 9401151180
Category : Science
Languages : en
Pages : 630

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Book Description
Advances in Turbulence VII contains an overview of the state of turbulence research with some bias towards work done in Europe. It represents an almost complete collection of the invited and contributed papers delivered at the Seventh European Turbulence Conference, sponsored by EUROMECH and ERCOFTAC and organized by the Observatoire de la Côte d'Azur. New high-Reynolds number experiments combined with new techniques of imaging, non-intrusive probing, processing and simulation provide high-quality data which put significant constraints on possible theories. For the first time, it has been shown, for a class of passive scalar problems, why dimensional analysis sometimes gives the wrong answers and how anomalous intermittency corrections can be calculated from first principles. The volume is thus geared towards specialists in the area of flow turbulence who could not attend the conference as well as anybody interested in this rapidly moving field.

Tubes, Sheets and Singularities in Fluid Dynamics

Tubes, Sheets and Singularities in Fluid Dynamics PDF Author: K. Bajer
Publisher: Springer Science & Business Media
ISBN: 030648420X
Category : Science
Languages : en
Pages : 392

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Book Description
Modern experiments and numerical simulations show that the long-known coherent structures in turbulence take the form of elongated vortex tubes and vortex sheets. The evolution of vortex tubes may result in spiral structures which can be associated with the spectral power laws of turbulence. The mutual stretching of skewed vortex tubes, when they are close to each other, causes rapid growth of vorticity. Whether this process may or may not lead to a finite-time singularity is one of the famous open problems of fluid dynamics. This book contains the proceedings of the NATO ARW and IUTAM Symposium held in Zakopane, Poland, 2-7 September 2001. The papers presented, carefully reviewed by the International Scientific Committee, cover various aspects of the dynamics of vortex tubes and sheets and of their analogues in magnetohydrodynamics and in quantum turbulence. The book should be a useful reference for all researchers and students of modern fluid dynamics.

Computational Methods for the Atmosphere and the Oceans

Computational Methods for the Atmosphere and the Oceans PDF Author: Roger Temam
Publisher: Elsevier
ISBN: 0080931030
Category : Computers
Languages : en
Pages : 797

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Book Description
This book provides a survey of the frontiers of research in the numerical modeling and mathematical analysis used in the study of the atmosphere and oceans. The details of the current practices in global atmospheric and ocean models, the assimilation of observational data into such models and the numerical techniques used in theoretical analysis of the atmosphere and ocean are among the topics covered.• Truly interdisciplinary: scientific interactions between specialties of atmospheric and ocean sciences and applied and computational mathematics • Uses the approach of computational mathematicians, applied and numerical analysts and the tools appropriate for unsolved problems in the atmospheric and oceanic sciences• Contributions uniquely address central problems and provide a survey of the frontier of research

An Informal Introduction to Turbulence

An Informal Introduction to Turbulence PDF Author: A. Tsinober
Publisher: Springer Science & Business Media
ISBN: 140200110X
Category : Science
Languages : en
Pages : 344

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Book Description
This book is an informal introduction to the turbulence of fluids. The emphasis is placed on turbulence as a physical phenomenon. It addresses the unresolved issues, misconceptions, controversies, and major problems of the turbulence of fluids rather than the conventional formalistic elements and models. Little use is made of complicated formalisms; instead the emphasis is placed on an essentially informal qualitative form. The scope of the book is focused on the purely basic aspects of the turbulent flows of incompressible fluids. This book will certainly be of interest and use to graduate students as well as scientists active in fields where the turbulence of fluids is of importance. The book is intentionally written to appeal to a broad readership with the aim of making the turbulence of fluids interesting and comprehensible to the interested engineer.