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Advanced Approaches In Turbulence

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Advanced Approaches in Turbulence

Advanced Approaches in Turbulence Book
Author : Paul Durbin
Publisher : Elsevier
Release : 2021-07-24
ISBN : 0128208902
Language : En, Es, Fr & De

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Book Description :

Advanced Approaches in Turbulence: Theory, Modeling, Simulation and Data Analysis for Turbulent Flows focuses on the updated theory, simulation and data analysis of turbulence dealing mainly with turbulence modeling instead of the physics of turbulence. Beginning with the basics of turbulence, the book discusses closure modeling, direct simulation, large eddy simulation and hybrid simulation. The book also covers the entire spectrum of turbulence models for both single-phase and multi-phase flows, as well as turbulence in compressible flow. Turbulence modeling is very extensive and continuously updated with new achievements and improvements of the models. Modern advances in computer speed offer the potential for elaborate numerical analysis of turbulent fluid flow while advances in instrumentation are creating large amounts of data. This book covers these topics in great detail. Covers the fundamentals of turbulence updated with recent developments Focuses on hybrid methods such as DES and wall-modeled LES Gives an updated treatment of numerical simulation and data analysis

Multiscale and Multiresolution Approaches in Turbulence

Multiscale and Multiresolution Approaches in Turbulence Book
Author : Pierre Sagaut,Sebastien Deck,Marc Terracol
Publisher : World Scientific
Release : 2006
ISBN : 186094650X
Language : En, Es, Fr & De

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Book Description :

This unique book gives a general unified presentation of the use of the multiscale/multiresolution approaches in the field of turbulence. The coverage ranges from statistical models developed for engineering purposes to multiresolution algorithms for the direct computation of turbulence. It provides the only available up-to-date reviews dealing with the latest and most advanced turbulence models (including LES, VLES, hybrid RANS/LES, DES) and numerical strategies.The book aims at providing the reader with a comprehensive description of modern strategies for turbulent flow simulation, ranging from turbulence modeling to the most advanced multilevel numerical methods.

Statistical Theories and Computational Approaches to Turbulence

Statistical Theories and Computational Approaches to Turbulence Book
Author : Y. Kaneda,T. Gotoh
Publisher : Springer Science & Business Media
Release : 2013-03-09
ISBN : 4431670025
Language : En, Es, Fr & De

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Book Description :

This volume contains the papers presented at the workshop on Statistical The ories and Computational Approaches to Turbulence: Modern Perspectives and Applications to Global-Scale Flows, held October 10-13, 2001, at Nagoya Uni versity, Nagoya, Japan. Because of recent developments in computational capabilities, the compu tational approach is showing the potential to resolve a much wider range of length and time scales in turbulent physical systems. Nevertheless, even with the largest supercomputers of the foreseeable future, development of adequate modeling techniques for at least some scales of motion will be necessary for practical computations of important problems such as weather forecasting and the prediction and control of global pollution. The more powerful the available machines become, the more demand there will be for precise prediction of the systems. This means that more precise and reliable knowledge of the underlying dynamics will become important, and that more efficient and precise numerical methods best adapted to the new generation of computers will be necessary. The understanding of the nature of unresolved scales then will playa key role in the modeling of turbulent motion. The challenge to turbulence theory here is to elucidate the physics or dynamics of those scales, in particular their sta tistical aspects, and thereby develop models on sound bases to reduce modeling ambiguity. The challenge to the computational method is to develop efficient algorithms suitable for the problems, the machines, and the developed models.

Multiscale and Multiresolution Approaches in Turbulence

Multiscale and Multiresolution Approaches in Turbulence Book
Author : Pierre Sagaut,Sebastien Deck,Marc Terracol
Publisher : Imperial College Press
Release : 2006
ISBN : 1860948979
Language : En, Es, Fr & De

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Book Description :

This unique book gives a general unified presentation of the use of the multiscale/multiresolution approaches in the field of turbulence. The coverage ranges from statistical models developed for engineering purposes to multiresolution algorithms for the direct computation of turbulence. It provides the only available up-to-date reviews dealing with the latest and most advanced turbulence models (including LES, VLES, hybrid RANS/LES, DES) and numerical strategies. The book aims at providing the reader with a comprehensive description of modern strategies for turbulent flow simulation, ranging from turbulence modeling to the most advanced multilevel numerical methods. Sample Chapter(s). Chapter 1: A Brief Introduction to Turbulence (4,125 KB). Contents: A Brief Introduction to Turbulence; Turbulence Simulation and Scale Separation; Statistical Multiscale Modeling; Multiscale Subgrid Models: Self-Adaptivity; Structural Multiscale Subgrid Models: Small Scale Estimations; Unsteady Turbulence Simulation on Self-Adaptive Grids; Global Hybrid RANS/LES Methods; Zonal RANS/LES Methods. Readership: Researchers and engineers in academia and industry in aerospace, automotive and other aerodynamics-oriented fields; masters-level students in fluid mechanics, computational fluid dynamics and applied mathematics.

Advanced Approaches in Echocardiography

Advanced Approaches in Echocardiography Book
Author : Linda D. Gillam,Catherine M. Otto
Publisher : Elsevier Health Sciences
Release : 2012-01
ISBN : 1437726976
Language : En, Es, Fr & De

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Book Description :

Echocardiography Review Manual fully prepares you for success on the echocardiography boards, the PTEeXAM, or the diagnostic cardiac sonographer's exam. Drs. Catherine M. Otto and Rosario Freeman, along with cardiac sonographer Rebecca G. Schwaegler, clearly demonstrate how to record echos, avoid pitfalls, perform calculations, and understand the fundamentals of echocardiography for all types of cardiac disease. All-new multiple-choice review questions and answers probe your knowledge of the latest approaches, and a completely new chapter on TEE covers everything you need to know about this te

Basel II Implementation in the Midst of Turbulence

Basel II Implementation in the Midst of Turbulence Book
Author : Frederik C. Musch,Rym Ayadi,Maria Nieto,Mathias Schmit
Publisher : CEPS
Release : 2008
ISBN : 9290796286
Language : En, Es, Fr & De

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Book Description :

Download Basel II Implementation in the Midst of Turbulence book written by Frederik C. Musch,Rym Ayadi,Maria Nieto,Mathias Schmit, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Fundamentals of Premixed Turbulent Combustion

Fundamentals of Premixed Turbulent Combustion Book
Author : Andrei Lipatnikov
Publisher : CRC Press
Release : 2012-10-24
ISBN : 1466510242
Language : En, Es, Fr & De

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Book Description :

Lean burning of premixed gases is considered to be a promising combustion technology for future clean and highly efficient gas turbine combustors. Yet researchers face several challenges in dealing with premixed turbulent combustion, from its nonlinear multiscale nature and the impact of local phenomena to the multitude of competing models. Filling a gap in the literature, Fundamentals of Premixed Turbulent Combustion introduces the state of the art of premixed turbulent combustion in an accessible manner for newcomers and experienced researchers alike. To more deeply consider current research issues, the book focuses on the physical mechanisms and phenomenology of premixed flames, with a brief discussion of recent advances in partially premixed turbulent combustion. It begins with a summary of the relevant knowledge needed from disciplines such as thermodynamics, chemical kinetics, molecular transport processes, and fluid dynamics. The book then presents experimental data on the general appearance of premixed turbulent flames and details the physical mechanisms that could affect the flame behavior. It also examines the physical and numerical models for predicting the key features of premixed turbulent combustion. Emphasizing critical analysis, the book compares competing concepts and viewpoints with one another and with the available experimental data, outlining the advantages and disadvantages of each approach. In addition, it discusses recent advances and highlights unresolved issues. Written by a leading expert in the field, this book provides a valuable overview of the physics of premixed turbulent combustion. Combining simplicity and topicality, it helps researchers orient themselves in the contemporary literature and guides them in selecting the best research tools for their work.

An Introduction To Turbulence

An Introduction To Turbulence Book
Author : Paul A. Libby
Publisher : CRC Press
Release : 1996-10-01
ISBN : 9781560321002
Language : En, Es, Fr & De

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Book Description :

Beginning with a description of turbulence, its various manifestations, and a brief history of study, this text also incorporates modern perspectives on turbulence. The text also covers such topics as intermittency and the resultant conditional sampling and averaging of turbulent flows, the role of large scale computation of the fundamental equations of fluid mechanics in providing information on variables, and asymptotic methods which are used to expose important features of turbulent flows. Meaningful exercises are included in every section.

Multiscale And Multiresolution Approaches In Turbulence Les Des And Hybrid Rans les Methods Applications And Guidelines 2nd Edition

Multiscale And Multiresolution Approaches In Turbulence   Les  Des And Hybrid Rans les Methods  Applications And Guidelines  2nd Edition  Book
Author : Sagaut Pierre,Terracol Marc,Deck Sebastien
Publisher : World Scientific
Release : 2013-03-25
ISBN : 1848169884
Language : En, Es, Fr & De

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Book Description :

The book aims to provide the reader with an updated general presentation of multiscale/multiresolution approaches in turbulent flow simulations. All modern approaches (LES, hybrid RANS/LES, DES, SAS) are discussed and recast in a global comprehensive framework. Both theoretical features and practical implementation details are addressed. Some full scale applications are described, to provide the reader with relevant guidelines to facilitate a future use of these methods./a

Computational Modelling of Bifurcations and Instabilities in Fluid Dynamics

Computational Modelling of Bifurcations and Instabilities in Fluid Dynamics Book
Author : Alexander Gelfgat
Publisher : Springer
Release : 2018-07-06
ISBN : 3319914944
Language : En, Es, Fr & De

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Book Description :

Instabilities of fluid flows and the associated transitions between different possible flow states provide a fascinating set of problems that have attracted researchers for over a hundred years. This book addresses state-of-the-art developments in numerical techniques for computational modelling of fluid instabilities and related bifurcation structures, as well as providing comprehensive reviews of recently solved challenging problems in the field.

A New Hypothesis on the Anisotropic Reynolds Stress Tensor for Turbulent Flows

A New Hypothesis on the Anisotropic Reynolds Stress Tensor for Turbulent Flows Book
Author : László Könözsy
Publisher : Springer
Release : 2019-02-26
ISBN : 3030135438
Language : En, Es, Fr & De

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Book Description :

This book gives a mathematical insight--including intermediate derivation steps--into engineering physics and turbulence modeling related to an anisotropic modification to the Boussinesq hypothesis (deformation theory) coupled with the similarity theory of velocity fluctuations. Through mathematical derivations and their explanations, the reader will be able to understand new theoretical concepts quickly, including how to put a new hypothesis on the anisotropic Reynolds stress tensor into engineering practice. The anisotropic modification to the eddy viscosity hypothesis is in the center of research interest, however, the unification of the deformation theory and the anisotropic similarity theory of turbulent velocity fluctuations is still missing from the literature. This book brings a mathematically challenging subject closer to graduate students and researchers who are developing the next generation of anisotropic turbulence models. Indispensable for graduate students, researchers and scientists in fluid mechanics and mechanical engineering.

Paper

Paper Book
Author : Anonim
Publisher : Unknown
Release : 1994
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download Paper book written by , available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Dynamics and Modelling of Reactive Systems

Dynamics and Modelling of Reactive Systems Book
Author : Warren E. Stewart,W. Harmon Ray,Charles C. Conley
Publisher : Academic Press
Release : 2014-05-10
ISBN : 1483262065
Language : En, Es, Fr & De

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Book Description :

Dynamics and Modelling of Reactive Systems contains the proceedings of the Advanced Seminar on Dynamics and Modeling of Reactive Systems, held at the University of Wisconsin on October 1979. The book presents papers that assess the level of understanding of the dynamics of chemically reacting systems. The topics discussed include the hierarchies of models in reactive systems; model reduction of chemically reacting systems; and some consequences of nonlinearity in the diffusion process. Time-periodic and spatially irregular patterns; important aspects in simulating the dynamics of aerosols; and the diffusion and reaction in carbon burning are covered as well. Engineers and applied mathematicians will find the book highly insightful.

New trends in turbulence Turbulence nouveaux aspects

New trends in turbulence  Turbulence  nouveaux aspects Book
Author : M. Lesieur,Akiva M. Yaglom,F. David
Publisher : Springer Science & Business Media
Release : 2003-07-01
ISBN : 3540456740
Language : En, Es, Fr & De

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Book Description :

Following a longstanding tradition of the Les Houches Summer Schools, this book uses a pedagogically presented and accessible style to treat 2D and 3D turbulence from the experimental, theoretical and computational points of view.

Modeling and Simulation of Turbulent Flows

Modeling and Simulation of Turbulent Flows Book
Author : Roland Schiestel
Publisher : John Wiley & Sons
Release : 2010-01-05
ISBN : 0470393467
Language : En, Es, Fr & De

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Book Description :

This title provides the fundamental bases for developing turbulence models on rational grounds. The main different methods of approach are considered, ranging from statistical modelling at various degrees of complexity to numerical simulations of turbulence. Each of these various methods has its own specific performances and limitations, which appear to be complementary rather than competitive. After a discussion of the basic concepts, mathematical tools and methods for closure, the book considers second order closure models. Emphasis is placed upon this approach because it embodies potentials for clarifying numerous problems in turbulent shear flows. Simpler, generally older models are then presented as simplified versions of the more general second order models. The influence of extra physical parameters is also considered. Finally, the book concludes by examining large Eddy numerical simulations methods. Given the book’s comprehensive coverage, those involved in the theoretical or practical study of turbulence problems in fluids will find this a useful and informative read.

Turbulent Fluid Motion

Turbulent Fluid Motion Book
Author : R. Deissler
Publisher : CRC Press
Release : 1998-07-01
ISBN : 9781560327530
Language : En, Es, Fr & De

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Book Description :

This comprehensive book is based on the Navier-Stokes and other continuum equations for fluids. It interprets the analytical and numerical solutions of the equations of fluid motion. Topics included are turbulence, and how, why, and where it occurs; mathematical apparatus used for the representation and study of turbulence; continuum equations used for the analysis of turbulence; ensemble, time, and space averages as they are applied to turbulent quantities; the closure problem of the averaged equations and possible closure schemes; Fourier analysis and the spectral form of the continuum equations, both averaged and unaveraged; nonlinear dynamics and chaos theory.

Turbulence Modelling Approaches

Turbulence Modelling Approaches Book
Author : Konstantin Volkov
Publisher : BoD – Books on Demand
Release : 2017-07-26
ISBN : 9535133497
Language : En, Es, Fr & De

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Book Description :

Accurate prediction of turbulent flows remains a challenging task despite considerable work in this area and the acceptance of CFD as a design tool. The quality of the CFD calculations of the flows in engineering applications strongly depends on the proper prediction of turbulence phenomena. Investigations of flow instability, heat transfer, skin friction, secondary flows, flow separation, and reattachment effects demand a reliable modelling and simulation of the turbulence, reliable methods, accurate programming, and robust working practices. The current scientific status of simulation of turbulent flows as well as some advances in computational techniques and practical applications of turbulence research is reviewed and considered in the book.

Turbulence and Transition Modelling

Turbulence and Transition Modelling Book
Author : M. Hallbäck,D.S. Henningson,A.V. Johansson,P.H. Alfredsson
Publisher : Springer Science & Business Media
Release : 2013-03-09
ISBN : 9401586667
Language : En, Es, Fr & De

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Book Description :

The aim of this book is to give, within a single volume, an introduction to the fields of turbulence modelling and transition-to-turbulence prediction, and to provide the physical background for today's modelling approaches in these problem areas as well as giving a flavour of advanced use of prediction methods. Turbulence modelling approaches, ranging from single-point models based on the eddy-viscosity concept and the Reynolds stress transport equations (Chapters 3,4,5), to large-eddy simulation (LES) techniques (Ch. 7), are covered. The foundations of hydrodynamical stability and transition are presented (Ch. 2) along with transition prediction methods based on single-point closures (Ch. 6), LES techniques (Ch. 7) and the parabolized stability equations (Ch. 8). The book addresses engineers and researchers, in industry or academia, who are entering into the fields of turbulence or transition modelling research or need to apply turbulence or transition prediction methods in their work.

Turbulent Combustion Modeling

Turbulent Combustion Modeling Book
Author : Tarek Echekki,Epaminondas Mastorakos
Publisher : Springer Science & Business Media
Release : 2010-12-25
ISBN : 9400704127
Language : En, Es, Fr & De

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Book Description :

Turbulent combustion sits at the interface of two important nonlinear, multiscale phenomena: chemistry and turbulence. Its study is extremely timely in view of the need to develop new combustion technologies in order to address challenges associated with climate change, energy source uncertainty, and air pollution. Despite the fact that modeling of turbulent combustion is a subject that has been researched for a number of years, its complexity implies that key issues are still eluding, and a theoretical description that is accurate enough to make turbulent combustion models rigorous and quantitative for industrial use is still lacking. In this book, prominent experts review most of the available approaches in modeling turbulent combustion, with particular focus on the exploding increase in computational resources that has allowed the simulation of increasingly detailed phenomena. The relevant algorithms are presented, the theoretical methods are explained, and various application examples are given. The book is intended for a relatively broad audience, including seasoned researchers and graduate students in engineering, applied mathematics and computational science, engine designers and computational fluid dynamics (CFD) practitioners, scientists at funding agencies, and anyone wishing to understand the state-of-the-art and the future directions of this scientifically challenging and practically important field.

Transition Turbulence and Combustion Modelling

Transition  Turbulence and Combustion Modelling Book
Author : A. Hanifi,P.H. Alfredsson,A.V. Johansson,D.S. Hennigson
Publisher : Springer Science & Business Media
Release : 2012-12-06
ISBN : 9401145156
Language : En, Es, Fr & De

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Book Description :

This single-volume work gives an introduction to the fields of transition, turbulence, and combustion modeling of compressible flows and provides the physical background for today’s modeling approaches in these fields. It presents basic equations and discusses fundamental aspects of hydrodynamical instability.