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Author : Dezhe Jin
Publisher :
ISBN 13 :
Total Pages : 270 pages
Book Rating : 4.:/5 (318 download)
Download or read book Theory of Vortex Crystal Formation in Two-dimensional Turbulence written by Dezhe Jin and published by . This book was released on 1999 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Fayeza Salim Sulti
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (858 download)
Download or read book Numerical Studies in Two-dimensional Turbulence written by Fayeza Salim Sulti and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Two-dimensional turbulence has been extensively studied over the past years theoretically and numerically since the theory of the dual cascade energy. Numerical studies have revealed an impor- tant feature of two-dimensional turbulence, that is, the predomi- nance of coherent structures, followed by interaction and merger of these isolated vortices in the subsequent evolution. A method of 'vortex census' has been introduced to keep track of the vortices but the relation to reconnection has remained unexplored. In this Thesis, we study the reconnection process of vorticity con- tours associated with coherent vortices in two-dimensional turbu- lence for different Reynolds number. After checking topological integrity by the Euler index theorem, we make use of the critical points and their connectivity (so-called surface networks) to study the topological changes of vorticity contours. Wc show how this method can remarkably distinguish the dynamics of the vortic- ity field in the Navier-Stokes equations and that of the Charney- Hasegawa-Mima equation. We found that the potential vorticity formed vortex crystals. This excites us to study the vortex crystal in details by study a coarse-grained asymptotic equation [Smirnov and Chukbar(2001)]. Self-similar blow-up solutions with an infi- 1 I i :. nite total energy were given. We ask whether or not finite-time blow-up can take place developing from smooth initial data with a finite energy.
Author : Mingzhou Ding
Publisher : World Scientific
ISBN 13 : 9810245610
Total Pages : 459 pages
Book Rating : 4.8/5 (12 download)
Download or read book Proceedings of the 5th Experimental Chaos Conference written by Mingzhou Ding and published by World Scientific. This book was released on 2001 with total page 459 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 5th Experimental Chaos Conference was a gathering of scientists and engineers who work on real-world systems that behave in a nonlinear and, often, chaotic fashion. The proceedings present discoveries of chaotic behavior, explanation of nonlinear phenomena in the laboratory, and applications of nonlinear and chaotic effects to devices and techniques for improving performance and surmounting technical obstacles. Experimental work is presented on chaos in semiconductor superlattices, spatiotemporal chaos in magnetic materials, instabilities in magnetic fluids, bifurcations of hexagonal patterns in lasers, and discrete rotating waves. New phenomena are exhibited on amplitude death in coupled oscillators, vortex crystals, wakes in soap films, chaotic dynamics of ocean waves, and microscopic chaos. Applications of chaotic dynamics are offered in the areas of chaotic pulse trains in digital communications, detection of changes in EEGs, detection of unstable periodic orbits in noisy data, cellular automata and warfare, detection of n: m phase synchronization, methods in acoustic chaos, chaos in the machine tool-cutting process, and a nonlinear airfoil. The broad range of topics and fields touches on a wide variety of systems whose behavior is now better understood and applied through the use of chaotic dynamics
Author : A.V. Boiko
Publisher : Springer Science & Business Media
ISBN 13 : 3662047659
Total Pages : 273 pages
Book Rating : 4.6/5 (62 download)
Download or read book The Origin of Turbulence in Near-Wall Flows written by A.V. Boiko and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 273 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Origin of Species Charles Darwin The origin of turbulence in fluids is a long-standing problem and has been the focus of research for decades due to its great importance in a variety of engineering applications. Furthermore, the study of the origin of turbulence is part of the fundamental physical problem of turbulence description and the philosophical problem of determinism and chaos. At the end of the nineteenth century, Reynolds and Rayleigh conjectured that the reason of the transition of laminar flow to the 'sinuous' state is in stability which results in amplification of wavy disturbances and breakdown of the laminar regime. Heisenberg (1924) was the founder of linear hydrody namic stability theory. The first calculations of boundary layer stability were fulfilled in pioneer works of Tollmien (1929) and Schlichting (1932, 1933). Later Taylor (1936) hypothesized that the transition to turbulence is initi ated by free-stream oscillations inducing local separations near wall. Up to the 1940s, skepticism of the stability theory predominated, in particular due to the experimental results of Dryden (1934, 1936). Only the experiments of Schubauer and Skramstad (1948) revealed the determining role of insta bility waves in the transition. Now it is well established that the transition to turbulence in shear flows at small and moderate levels of environmental disturbances occurs through development of instability waves in the initial laminar flow. In Chapter 1 we start with the fundamentals of stability theory, employing results of the early studies and recent advances.
Author : Anatoli Tur
Publisher : Springer
ISBN 13 : 3319527339
Total Pages : 313 pages
Book Rating : 4.3/5 (195 download)
Download or read book Coherent Vortex Structures in Fluids and Plasmas written by Anatoli Tur and published by Springer. This book was released on 2017-04-09 with total page 313 pages. Available in PDF, EPUB and Kindle. Book excerpt: This monograph introduces readers to the hydrodynamics of vortex formation, and reviews the last decade of active research in the field, offering a unique focus on research topics at the crossroads of traditional fluids and plasmas. Vortices are responsible for the process of macroscopic transport of momentum, energy and mass, and are formed as the result of spontaneous self-organization. Playing an important role in nature and technology, localized, coherent vortices are regularly observed in shear flows, submerged jets, afterbody flows and in atmospheric boundary layers, sometimes taking on the form of vortex streets. In addition, the book addresses a number of open issues, including but not limited to: which singularities are permitted in a 2D Euler equation besides point vortices? Which other, even more complex, localized vortices could be contained in the Euler equation? How do point vortices interact with potential waves?
Author : J. Dilling
Publisher : Springer Science & Business Media
ISBN 13 : 9783540734659
Total Pages : 486 pages
Book Rating : 4.7/5 (346 download)
Download or read book TCP 2006 written by J. Dilling and published by Springer Science & Business Media. This book was released on 2007-11-02 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt: The TCP06 conference in Canada showcased the impressive progress in the study of fundamental physics using trapped charged particles. The combination of overview articles by leaders in the field and detailed reports on recent research results will without doubt make these proceedings an extremely useful reference for researchers within the community, but also for those who study similar physics with different techniques, or use trapping methods for different purposes.
Author : Marshall P. Tulin
Publisher :
ISBN 13 :
Total Pages : 124 pages
Book Rating : 4.3/5 (121 download)
Download or read book The Motion of Turbulent Vortex-pairs in Homogeneous and Density Stratified Media written by Marshall P. Tulin and published by . This book was released on 1971 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: A theory for the motion of two-dimensional turbulent vortex pairs in homogeneous media has been developed based on separate velocity scaling of the internal and external flow fields involved in the motion and taking into account variations in volume, circulation, momentum, and energy. Based on the results obtained from this theory, a simplified theory is derived to deal with the rising motion of turbulent vortex pairs in stratified media. The theoretical results are compared with systematic experimental observations.
Author : Haralabos Marmanis
Publisher :
ISBN 13 :
Total Pages : 102 pages
Book Rating : 4.:/5 (379 download)
Download or read book Statistical Vortex Dynamics and Two-dimensional Turbulence written by Haralabos Marmanis and published by . This book was released on 1996 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Alexandre J. Chorin
Publisher : Springer Science & Business Media
ISBN 13 : 9780387941974
Total Pages : 192 pages
Book Rating : 4.9/5 (419 download)
Download or read book Vorticity and Turbulence written by Alexandre J. Chorin and published by Springer Science & Business Media. This book was released on 1994-06-24 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an introduction to turbulence in vortex systems, and to turbulence theory for incompressible flow described in terms of the vorticity field. It is the author's hope that by the end of the book the reader will believe that these subjects are identical, and constitute a special case of fairly standard statistical mechanics, with both equilibrium and non-equilibrium aspects. The author's main goal is to relate turbulence to statistical mechanics. The book is organized as follows: the first three chapters constitute a fairly standard introduction to homogeneous turbulence in incompressible flow; a quick review of fluid mechanics; a summary of the appropriate Fourier theory; a summary of Kolmogorov's theory of the inertial range. The next four chapters present the statistical theory of vortex notion, and the vortex dynamics of turbulence. The book ends with the major conclusion that turbulence can no longer be viewed as incomprehensible. This book will be appropriate for professionals in the fields of applied mathematics, mechanical engineering, or physics, as well as graduate students in these noted areas.
Author : Kenneth G. Oetzel
Publisher :
ISBN 13 :
Total Pages : 124 pages
Book Rating : 4.:/5 (321 download)
Download or read book Phenomenology of Strain, Vortices, and the Enstrophy Inertial Range in Two-dimensional Turbulence written by Kenneth G. Oetzel and published by . This book was released on 1995 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Yifei Yu
Publisher : Springer Nature
ISBN 13 : 3031536703
Total Pages : 201 pages
Book Rating : 4.0/5 (315 download)
Download or read book Mechanism of Hairpin Vortex Formation by Liutex written by Yifei Yu and published by Springer Nature. This book was released on with total page 201 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Hassan Aref
Publisher :
ISBN 13 :
Total Pages : 268 pages
Book Rating : 4.E/5 ( download)
Download or read book Turbulence and Vortex Dynamics in Two Dimensions written by Hassan Aref and published by . This book was released on 1980 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : D.L. Dwoyer
Publisher : Springer Science & Business Media
ISBN 13 : 1461210925
Total Pages : 377 pages
Book Rating : 4.4/5 (612 download)
Download or read book Theoretical Approaches to Turbulence written by D.L. Dwoyer and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 377 pages. Available in PDF, EPUB and Kindle. Book excerpt: Turbulence is the lIDst natural nDde of fluid lIDtion, and has been the subject of scientific study for all Dst a century. During this period, various ideas and techniques have evolved to nDdel turbulence. Following Saffman, these theoretical approaches can be broadly divided into four overlapping categories -- (1) analytical lIDdelling, (2) physical lIDdelling, (3) phenomenologicalllDdelling, and (4) nurerical lIDdelling. With the purpose of stmtnarizing our =ent understanding of these theoretical approaches to turbulence, recognized leaders (fluid dynamicists, mathematicians and physicists) in the field were invited to participate in a formal workshop during October 10-12, 1984, sponsored by The Institute for CooIputer Applications in Science and Engineering and NASA Langley Research Center. Kraiciman, McCcxnb, Pouquet and Spiegel represented the category of analytical nDdelling, while Landahl and Saffman represented physical lIDdelling. The contributions of Latmder and Spalding were in the category of phenanenological lIDdelling, and those of Ferziger and Reynolds in the area of nurericalllDdelling. Aref, Cholet, Lumley, Moin, Pope and Temam served on the panel discussions. With the care and cooperation of the participants, the workshop achieved its purpose, and we believe that its proceedings published in this vol\. llre has lasting scientific value. The tone of the workshop was set by two introductory talks by Bushnell and ChaImm. Buslmell presented the engineering viewpoint while Chapman reviewed from a historical perspective developments in the study of turbulence. The remaining talks dealt with specific aspects of the theoretical approaches to fluid turbulence.
Author : William Hill Reid
Publisher :
ISBN 13 :
Total Pages : 60 pages
Book Rating : 4.8/5 (26 download)
Download or read book The Dynamics of Isotropic Turbulence in Two Dimensions written by William Hill Reid and published by . This book was released on 1959 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Nielson K. Th Wiese
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (258 download)
Download or read book Vortex formation in a two-dimensional periodic wake written by Nielson K. Th Wiese and published by . This book was released on 1970 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Daniel Richard Durkin
Publisher :
ISBN 13 :
Total Pages : 202 pages
Book Rating : 4.:/5 (34 download)
Download or read book Experiments on 2D Vortex Patterns in a Malberg-Penning Trap with a Photocathode written by Daniel Richard Durkin and published by . This book was released on 1998 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Mikhail A. Sokolovskiy
Publisher : Springer Science & Business Media
ISBN 13 : 3319007890
Total Pages : 392 pages
Book Rating : 4.3/5 (19 download)
Download or read book Dynamics of Vortex Structures in a Stratified Rotating Fluid written by Mikhail A. Sokolovskiy and published by Springer Science & Business Media. This book was released on 2013-08-28 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents an extensive analysis of the dynamics of discrete and distributed baroclinic vortices in a multi-layer fluid that characterizes the main features of the large and mesoscales dynamics of the atmosphere and the ocean. It widely covers the case of hetonic situations as well as the case of intrathermocline vortices that are familiar in oceanographic and of recognized importance for heat and mass transfers. Extensive typology of such baroclinic eddies is made and analysed with the help of theoretical development and numerical computations. As a whole it gives an overview and synthesis of all the many situations that can be encountered based on the long history of the theory of vortex motion and on many new situations. It gives a renewed insight on the extraordinary richness of vortex dynamics and open the way for new theoretical, observational and experimental advances. This volume is of interest to experts in physical oceanography, meteorology, hydrodynamics, dynamic systems, involved in theoretical, experimental and applied research and lecturers, post-graduate students, and students in these fields.
