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

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Publisher : Springer
ISBN 13 : 3030135438
Total Pages : 141 pages
Book Rating : 4.0/5 (31 download)

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Book Synopsis A New Hypothesis on the Anisotropic Reynolds Stress Tensor for Turbulent Flows by : László Könözsy

Download or read book A New Hypothesis on the Anisotropic Reynolds Stress Tensor for Turbulent Flows written by László Könözsy and published by Springer. This book was released on 2019-02-26 with total page 141 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

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

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Publisher : Springer Nature
ISBN 13 : 3030606031
Total Pages : 517 pages
Book Rating : 4.0/5 (36 download)

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Book Synopsis A New Hypothesis on the Anisotropic Reynolds Stress Tensor for Turbulent Flows by : László Könözsy

Download or read book A New Hypothesis on the Anisotropic Reynolds Stress Tensor for Turbulent Flows written by László Könözsy and published by Springer Nature. This book was released on 2020-12-01 with total page 517 pages. Available in PDF, EPUB and Kindle. Book excerpt: This self-contained, interdisciplinary book encompasses mathematics, physics, computer programming, analytical solutions and numerical modelling, industrial computational fluid dynamics (CFD), academic benchmark problems and engineering applications in conjunction with the research field of anisotropic turbulence. It focuses on theoretical approaches, computational examples and numerical simulations to demonstrate the strength of a new hypothesis and anisotropic turbulence modelling approach for academic benchmark problems and industrially relevant engineering applications. This book contains MATLAB codes, and C programming language based User-Defined Function (UDF) codes which can be compiled in the ANSYS-FLUENT environment. The computer codes help to understand and use efficiently a new concept which can also be implemented in any other software packages. The simulation results are compared to classical analytical solutions and experimental data taken from the literature. A particular attention is paid to how to obtain accurate results within a reasonable computational time for wide range of benchmark problems. The provided examples and programming techniques help graduate and postgraduate students, engineers and researchers to further develop their technical skills and knowledge.

Critical Assessment of Reynolds Stress Turbulence Models Using Homogeneous Flows

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Publisher :
ISBN 13 :
Total Pages : 34 pages
Book Rating : 4.:/5 (31 download)

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Book Synopsis Critical Assessment of Reynolds Stress Turbulence Models Using Homogeneous Flows by : Aamir Shabbir

Download or read book Critical Assessment of Reynolds Stress Turbulence Models Using Homogeneous Flows written by Aamir Shabbir and published by . This book was released on 1992 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Theories of Turbulence

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Publisher : Springer
ISBN 13 : 3709125642
Total Pages : 377 pages
Book Rating : 4.7/5 (91 download)

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Book Synopsis Theories of Turbulence by : Martin Oberlack

Download or read book Theories of Turbulence written by Martin Oberlack and published by Springer. This book was released on 2014-05-04 with total page 377 pages. Available in PDF, EPUB and Kindle. Book excerpt: The term "turbulence” is used for a large variety of dynamical phenomena of fluids in motion whenever the details of the flow appear to be random and average properties are of primary interest. Just as wide ranging are the theoretical methods that have been applied towards a better understanding of fluid turbulence. In this book a number of these methods are described and applied to a broad range of problems from the transition to turbulence to asymptotic turbulence when the inertial part of the spectrum is fully developed. Statistical as well as nonstatistical treatments are presented, but a complete coverage of the subject is not attempted. The book will be of interest to scientists and engineers who wish to familiarize themselves with modern developments in theories of turbulence. The fact that the properties of turbulent fluid flow are addressed from very different points of view makes this volume rather unique among presently available books on turbulence.

On Explicit Algebraic Stress Models for Complex Turbulent Flows

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Publisher :
ISBN 13 :
Total Pages : 40 pages
Book Rating : 4.:/5 (317 download)

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Book Synopsis On Explicit Algebraic Stress Models for Complex Turbulent Flows by : T. B. Gatski

Download or read book On Explicit Algebraic Stress Models for Complex Turbulent Flows written by T. B. Gatski and published by . This book was released on 1992 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Analytical Methods for the Development of Reynolds Stress Closures in Turbulence

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Publisher :
ISBN 13 :
Total Pages : 64 pages
Book Rating : 4.:/5 (317 download)

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Book Synopsis Analytical Methods for the Development of Reynolds Stress Closures in Turbulence by : Charles G. Speziale

Download or read book Analytical Methods for the Development of Reynolds Stress Closures in Turbulence written by Charles G. Speziale and published by . This book was released on 1990 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Turbulent Flows

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Publisher : Cambridge University Press
ISBN 13 : 9780521598866
Total Pages : 810 pages
Book Rating : 4.5/5 (988 download)

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Book Synopsis Turbulent Flows by : Stephen B. Pope

Download or read book Turbulent Flows written by Stephen B. Pope and published by Cambridge University Press. This book was released on 2000-08-10 with total page 810 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

New Results on the Realizability of Reynolds Stress Turbulence Closures

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Publisher :
ISBN 13 :
Total Pages : 56 pages
Book Rating : 4.:/5 (317 download)

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Book Synopsis New Results on the Realizability of Reynolds Stress Turbulence Closures by : Institute for Computer Applications in Science and Engineering

Download or read book New Results on the Realizability of Reynolds Stress Turbulence Closures written by Institute for Computer Applications in Science and Engineering and published by . This book was released on 1993 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Turbulence in Open Channel Flows

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Publisher : Routledge
ISBN 13 : 1351406604
Total Pages : 246 pages
Book Rating : 4.3/5 (514 download)

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Book Synopsis Turbulence in Open Channel Flows by : Hiroji Nakagawa

Download or read book Turbulence in Open Channel Flows written by Hiroji Nakagawa and published by Routledge. This book was released on 2017-10-02 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt: A review of open channel turbulence, focusing especially on certain features stemming from the presence of the free surface and the bed of a river. Part one presents the statistical theory of turbulence; Part two addresses the coherent structures in open-channel flows and boundary layers.

Development of a More General Reynolds Stress Closure for Swirling Flow

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Publisher :
ISBN 13 :
Total Pages : 16 pages
Book Rating : 4.:/5 (227 download)

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Book Synopsis Development of a More General Reynolds Stress Closure for Swirling Flow by : S. B. Chin

Download or read book Development of a More General Reynolds Stress Closure for Swirling Flow written by S. B. Chin and published by . This book was released on 1988 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper is concerned with the modelling of the return to isotropy part of the pressure strain term in homogeneous anisotropic turbulent flows. Analytical solutions of the transport equations of the invariants of the anisotropy tensor as well as that of turbulent kinetic energy as a function of the natural time of decay are provided and discussed. Principal components of the Reynolds stresses are obtained from the solution of a cubic equation which involves the invariants. It is shown that current models based on Rotta's hypothesis are subject to a constraint which is only satisfied by axisymmetric homogeneous turbulence, and the constraint can be eliminated by non-linear modelling. A physical picture of energy transfer among the Reynolds stress components which takes into account the influence of the third invariant on the process of return to isotropy is presented. Keywords: Second order closure; Reynolds stress model; Homogeneous turbulence; Non-linear effects; Swirling flows; Compressible flows.

Mathematical and Physical Theory of Turbulence, Volume 250

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Publisher : CRC Press
ISBN 13 : 1420014978
Total Pages : 209 pages
Book Rating : 4.4/5 (2 download)

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Book Synopsis Mathematical and Physical Theory of Turbulence, Volume 250 by : John Cannon

Download or read book Mathematical and Physical Theory of Turbulence, Volume 250 written by John Cannon and published by CRC Press. This book was released on 2006-06-15 with total page 209 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 ex

Recent Research on Environmental Earth Sciences, Geomorphology, Soil Science, Paleoclimate, and Karst

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Publisher : Springer Nature
ISBN 13 : 3031429176
Total Pages : 256 pages
Book Rating : 4.0/5 (314 download)

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Book Synopsis Recent Research on Environmental Earth Sciences, Geomorphology, Soil Science, Paleoclimate, and Karst by : Attila Çiner

Download or read book Recent Research on Environmental Earth Sciences, Geomorphology, Soil Science, Paleoclimate, and Karst written by Attila Çiner and published by Springer Nature. This book was released on 2023-12-16 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: This edited book is based on the accepted papers for presentation at the 1st MedGU Annual Meeting, Istanbul, 2021. With two parts spanning a large spectrum of environmental, geomorphological and geoarcheological topics and a third part on caves and karst, which includes research studies gathered on the occasion of the International Year of Caves and Karst (2021), this book presents a series of newest research studies that are nowadays relevant to Middle East, Mediterranean region, and Africa. The book gives a general overview on current research, focusing on geoenvironmental issues and challenges in environmental management in the Middle East and Mediterranean region and surrounding areas. It offers a broad range of recent studies that discuss the latest advances in geomorphology, landslides, soil science, paleoclimate, and geoarcheology. It also shares insights on cave and karst studies including speleology, cave and karst explorations, geomorphology, hydrogeology, geoethics, prehistoric eras in karst, geotectonics, and the nexus between human activities and karst sustainability.

Integrated Computer Technologies in Mechanical Engineering - 2022

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Publisher : Springer Nature
ISBN 13 : 3031362012
Total Pages : 778 pages
Book Rating : 4.0/5 (313 download)

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Book Synopsis Integrated Computer Technologies in Mechanical Engineering - 2022 by : Mykola Nechyporuk

Download or read book Integrated Computer Technologies in Mechanical Engineering - 2022 written by Mykola Nechyporuk and published by Springer Nature. This book was released on 2023-07-19 with total page 778 pages. Available in PDF, EPUB and Kindle. Book excerpt: The International Scientific and Technical Conference “Integrated Computer Technologies in Mechanical Engineering”—Synergetic Engineering (ICTM) was established by National Aerospace University “Kharkiv Aviation Institute.” The Conference ICTM’2022 was held in Kharkiv, Ukraine, during November 18–20, 2022. During this conference, technical exchanges between the research community were carried out in the forms of keynote speeches, panel discussions, as well as special session. In addition, participants were treated to a series of receptions, which forge collaborations among fellow researchers. ICTM’2022 received 137 papers submissions from different countries. All of these offer us plenty of valuable information and would be of great benefit to experience exchange among scientists in modeling and simulation. The organizers of ICTM’2022 made great efforts to ensure the success of this conference. We hereby would like to thank all the members of ICTM’2022 Advisory Committee for their guidance and advice, the members of program committee and organizing committee, and the referees for their effort in reviewing and soliciting the papers, and all authors for their contribution to the formation of a common intellectual environment for solving relevant scientific problems. Also, we grateful to Springer—Janusz Kacprzyk and Thomas Ditzinger as the editor responsible for the series “Lecture Notes in Networks and Systems” for their great support in publishing these selected papers.

Engineering Turbulence Modelling for CFD with Focus on Explicit Algebraic Reynolds Stress Models

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Publisher :
ISBN 13 :
Total Pages : 260 pages
Book Rating : 4.0/5 ( download)

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Book Synopsis Engineering Turbulence Modelling for CFD with Focus on Explicit Algebraic Reynolds Stress Models by : Stefan Wallin

Download or read book Engineering Turbulence Modelling for CFD with Focus on Explicit Algebraic Reynolds Stress Models written by Stefan Wallin and published by . This book was released on 2000 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Statistical Theory and Modeling for Turbulent Flows

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Publisher : Wiley-Blackwell
ISBN 13 :
Total Pages : 312 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Statistical Theory and Modeling for Turbulent Flows by : P. A. Durbin

Download or read book Statistical Theory and Modeling for Turbulent Flows written by P. A. Durbin and published by Wiley-Blackwell. This book was released on 2001-03-12 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: Most natural and industrial flows are turbulent. The atmosphere and oceans, automobile and aircraft engines, all provide examples of this ubiquitous phenomenon. In recent years, turbulence has become a very lively area of scientific research and application, and this work offers a grounding in the subject of turbulence, developing both the physical insight and the mathematical framework needed to express the theory. Providing a solid foundation in the key topics in turbulence, this valuable reference resource enables the reader to become a knowledgeable developer of predictive tools. This central and broad ranging topic would be of interest to graduate students in a broad range of subjects, including aeronautical and mechanical engineering, applied mathematics and the physical sciences. The accompanying solutions manual to the text also makes this a valuable teaching tool for lecturers and for practising engineers and scientists in computational and experimental and experimental fluid dynamics.

Homogeneous Turbulence Dynamics

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Publisher : Springer
ISBN 13 : 3319731629
Total Pages : 912 pages
Book Rating : 4.3/5 (197 download)

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Book Synopsis Homogeneous Turbulence Dynamics by : Pierre Sagaut

Download or read book Homogeneous Turbulence Dynamics written by Pierre Sagaut and published by Springer. This book was released on 2018-03-23 with total page 912 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides state-of-the-art results and theories in homogeneous turbulence, including anisotropy and compressibility effects with extension to quantum turbulence, magneto-hydodynamic turbulence and turbulence in non-newtonian fluids. Each chapter is devoted to a given type of interaction (strain, rotation, shear, etc.), and presents and compares experimental data, numerical results, analysis of the Reynolds stress budget equations and advanced multipoint spectral theories. The role of both linear and non-linear mechanisms is emphasized. The link between the statistical properties and the dynamics of coherent structures is also addressed. Despite its restriction to homogeneous turbulence, the book is of interest to all people working in turbulence, since the basic physical mechanisms which are present in all turbulent flows are explained. The reader will find a unified presentation of the results and a clear presentation of existing controversies. Special attention is given to bridge the results obtained in different research communities. Mathematical tools and advanced physical models are detailed in dedicated chapters.

Relaxation Model for Homogeneous Turbulent Flows

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Publisher :
ISBN 13 :
Total Pages : 468 pages
Book Rating : 4.3/5 (129 download)

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Book Synopsis Relaxation Model for Homogeneous Turbulent Flows by : Steven M. Parks

Download or read book Relaxation Model for Homogeneous Turbulent Flows written by Steven M. Parks and published by . This book was released on 1997 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt: