Turbulent Flows

Author: S. B. Pope
Editor: Cambridge University Press
ISBN: 9780521598866
Size: 10,46 MB
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This is a graduate text on turbulent flows, an important topic in fluid dynamics. It is up-to-date, comprehensive, designed for teaching, and is based on a course taught by the author at Cornell University for a number of years. The book consists of two parts followed by a number of appendices. Part I provides a general introduction to turbulent flows, how they behave, how they can be described quantitatively, and the fundamental physical processes involved. Part II is concerned with different approaches for modelling or simulating turbulent flows. The necessary mathematical techniques are presented in the appendices. This book is primarily intended as a graduate level text in turbulent flows for engineering students, but it may also be valuable to students in applied mathematics, physics, oceanography and atmospheric sciences, as well as researchers and practising engineers.

Turbulent Flows

Author: G. Biswas
Editor: CRC Press
ISBN: 9780849310140
Size: 15,53 MB
Format: PDF, Kindle
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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.

Turbulent Flow

Author: R. J. Garde
Editor: New Academic Science
ISBN: 9781906574314
Size: 16,87 MB
Format: PDF
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This work gives the basic analytical framework for the description of turbulent flows and discusses various types encountered by engineers involved in hydraulic analysis and design. It also presents a detailed exposition of the various dimensions of turbulent flow.

Statistical Theory And Modeling For Turbulent Flows

Author: P. A. Durbin
Editor: John Wiley & Sons
ISBN: 1119957524
Size: 19,23 MB
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Providing a comprehensive grounding in the subject of turbulence, Statistical Theory and Modeling for Turbulent Flows develops both the physical insight and the mathematical framework needed to understand turbulent flow. Its scope enables the reader to become a knowledgeable user of turbulence models; it develops analytical tools for developers of predictive tools. Thoroughly revised and updated, this second edition includes a new fourth section covering DNS (direct numerical simulation), LES (large eddy simulation), DES (detached eddy simulation) and numerical aspects of eddy resolving simulation. In addition to its role as a guide for students, Statistical Theory and Modeling for Turbulent Flows also is a valuable reference for practicing engineers and scientists in computational and experimental fluid dynamics, who would like to broaden their understanding of fundamental issues in turbulence and how they relate to turbulence model implementation. Provides an excellent foundation to the fundamental theoretical concepts in turbulence. Features new and heavily revised material, including an entire new section on eddy resolving simulation. Includes new material on modeling laminar to turbulent transition. Written for students and practitioners in aeronautical and mechanical engineering, applied mathematics and the physical sciences. Accompanied by a website housing solutions to the problems within the book.

Turbulent Flow

Author: Peter S. Bernard
Editor: John Wiley & Sons
ISBN: 9780471332190
Size: 10,89 MB
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Provides unique coverage of the prediction and experimentation necessary for making predictions. Covers computational fluid dynamics and its relationship to direct numerical simulation used throughout the industry. Covers vortex methods developed to calculate and evaluate turbulent flows. Includes chapters on the state-of-the-art applications of research such as control of turbulence.

Turbulent Flows

Author: Jean Piquet
Editor: Springer Science & Business Media
ISBN: 3662035596
Size: 19,71 MB
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obtained are still severely limited to low Reynolds numbers (about only one decade better than direct numerical simulations), and the interpretation of such calculations for complex, curved geometries is still unclear. It is evident that a lot of work (and a very significant increase in available computing power) is required before such methods can be adopted in daily's engineering practice. I hope to l"Cport on all these topics in a near future. The book is divided into six chapters, each· chapter in subchapters, sections and subsections. The first part is introduced by Chapter 1 which summarizes the equations of fluid mechanies, it is developed in C~apters 2 to 4 devoted to the construction of turbulence models. What has been called "engineering methods" is considered in Chapter 2 where the Reynolds averaged equations al"C established and the closure problem studied (§1-3). A first detailed study of homogeneous turbulent flows follows (§4). It includes a review of available experimental data and their modeling. The eddy viscosity concept is analyzed in §5 with the l"Csulting ~alar-transport equation models such as the famous K-e model. Reynolds stl"Css models (Chapter 4) require a preliminary consideration of two-point turbulence concepts which are developed in Chapter 3 devoted to homogeneous turbulence. We review the two-point moments of velocity fields and their spectral transforms (§ 1), their general dynamics (§2) with the particular case of homogeneous, isotropie turbulence (§3) whel"C the so-called Kolmogorov's assumptions are discussed at length.

An Introduction To Turbulent Flow

Author: Jean Mathieu
Editor: Cambridge University Press
ISBN: 9780521775380
Size: 11,90 MB
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First published in 2000, this book provides the physical and mathematical framework necessary to understand turbulent flow.

Modeling Complex Turbulent Flows

Author: Manuel D. Salas
Editor: Springer Science & Business Media
ISBN: 9780792355908
Size: 17,32 MB
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Turbulence modeling both addresses a fundamental problem in physics, 'the last great unsolved problem of classical physics,' and has far-reaching importance in the solution of difficult practical problems from aeronautical engineering to dynamic meteorology. However, the growth of supercom puter facilities has recently caused an apparent shift in the focus of tur bulence research from modeling to direct numerical simulation (DNS) and large eddy simulation (LES). This shift in emphasis comes at a time when claims are being made in the world around us that scientific analysis itself will shortly be transformed or replaced by a more powerful 'paradigm' based on massive computations and sophisticated visualization. Although this viewpoint has not lacked ar ticulate and influential advocates, these claims can at best only be judged premature. After all, as one computational researcher lamented, 'the com puter only does what I tell it to do, and not what I want it to do. ' In turbulence research, the initial speculation that computational meth ods would replace not only model-based computations but even experimen tal measurements, have not come close to fulfillment. It is becoming clear that computational methods and model development are equal partners in turbulence research: DNS and LES remain valuable tools for suggesting and validating models, while turbulence models continue to be the preferred tool for practical computations. We believed that a symposium which would reaffirm the practical and scientific importance of turbulence modeling was both necessary and timely.

Turbulent Flow Separation Ahead Of Forward Facing Steps In Supersonic Two Dimensional And Axisymmetric Flows

Author: H. T. Uebelhack
Editor:
ISBN:
Size: 13,67 MB
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Pressure distributions in the separated flow region ahead of forward facing steps and on the step face in supersonic turbulent flows obtained at VKI are compared with those found by previous investigators. Parameters such as step height, unit Reynolds number and Mach number were compared. It was intended, in particular, to relate the axisymmetric results to existing two-dimensional data. A general law relating the variation of the step pressure integral with Mach number was found by analyzing pressure distributions on the step face. The influence of flow inclination, Mach number variation and three-dimensional effects on the characteristic pressures were discussed. The flow has been visualized by schlieren and shadow photographs and by the oil flow technique.

Tackling Turbulent Flows In Engineering

Author: Anupam Dewan
Editor: Springer Science & Business Media
ISBN: 9783642147678
Size: 16,54 MB
Format: PDF
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The emphasis of this book is on engineering aspects of fluid turbulence. The book explains for example how to tackle turbulence in industrial applications. It is useful to several disciplines, such as, mechanical, civil, chemical, aerospace engineers and also to professors, researchers, beginners, under graduates and post graduates. The following issues are emphasized in the book: - Modeling and computations of engineering flows: The author discusses in detail the quantities of interest for engineering turbulent flows and how to select an appropriate turbulence model; Also, a treatment of the selection of appropriate boundary conditions for the CFD simulations is given. - Modeling of turbulent convective heat transfer: This is encountered in several practical situations. It basically needs discussion on issues of treatment of walls and turbulent heat fluxes. - Modeling of buoyancy driven flows, for example, smoke issuing from chimney, pollutant discharge into water bodies, etc