Download or read book Selforganization and Turbulence in Liquids written by Werner Ebeling and published by . This book was released on 1984 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Turbulence and Self Organization written by Mikhail Ya Marov and published by Springer. This book was released on 2013-01-15 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book deals with the development of continual models of turbulent natural media. Such models serve as a ground for the statement and numerical evaluation of the key problems of the structure and evolution of the numerous astrophysical and geophysical objects. The processes of ordering (self-organization) in an originally chaotic turbulent medium are addressed and treated in detail with the use of irreversible thermodynamics and stochastic dynamics approaches which underlie the respective models. Different examples of ordering set up in the natural environment and outer space are brought and thoroughly discussed, the main focus being given to the protoplanetary discs formation and evolution.
Download or read book Turbulence and Self Organization written by Mikhail Ya Marov and published by Springer Science & Business Media. This book was released on 2013-01-16 with total page 682 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book deals with the development of continual models of turbulent natural media. Such models serve as a ground for the statement and numerical evaluation of the key problems of the structure and evolution of the numerous astrophysical and geophysical objects. The processes of ordering (self-organization) in an originally chaotic turbulent medium are addressed and treated in detail with the use of irreversible thermodynamics and stochastic dynamics approaches which underlie the respective models. Different examples of ordering set up in the natural environment and outer space are brought and thoroughly discussed, the main focus being given to the protoplanetary discs formation and evolution.
Download or read book Teubner Texte zur Physik written by Werner Ebeling and published by . This book was released on 1984 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Turbulence and Structures written by Herman Branover and published by Academic Press. This book was released on 1999 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: Turbulence is one of the most wide-spread phenomena in the universe. It relates to processes within the atmosphere, ocean, deep within the earth, as well as to the stars. The general public usually knows about turbulence from the unpleasant shaking of an airplane, or from disastrous atmospheric phenomena such as typhoons and hurricanes. The chaotic and unpredictable behavior of turbulent movement makes it very difficult to study. The degree of understanding of turbulence is still far from being complete. Some progress was made with the recent advent of a new science--chaos theory. The authors succeeded in examining one basic feature of turbulence called helicity (or spirality) which is the foundation of explaining and predicting the generation of large turbulent structures (e.g. typhoons). Helicity is a universal feature existing not only in fluid flows but also in solid bodies and even in living organisms. This book can be especially useful for researchers and students in fluid mechanics, plasma, geophysics, biology, and meteorology. * Examines the helical mechanism of self-organization in nature and laboratory * Presents a unified approach to chaos and theory * Discusses similarities and differences in the formation of dynamic and magnetic structures * Successfully combines profound theoretical and experimental knowledge * Includes a disk with an expanded bibliographical database
Download or read book Intermittency and Self Organisation in Turbulence and Statistical Mechanics written by Eun-jin Kim and published by MDPI. This book was released on 2019-07-29 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a printed edition of the Special Issue Intermittency and Self-Organisation in Turbulence and Statistical Mechanics that was published in Entropy
Download or read book Self organization of Isotopic and Drift ware Turbulence written by Andrey Pushkarev and published by . This book was released on 2013 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: In order to give a general statistical description of turbulence, one tries to identify universal statistical features, common to a wider class of turbulent flows. In 1988, Kraichnan and Panda discovered one such possibly universal feature, namely, the fact that Navier-Stokes turbulence tends to reduce the strength of the nonlinearity in its governing equations. In the flrst part of the manuscript we consider the strength of the nonlinear term and, more precisely, of its fluctuations in isotropic turbulence. In order to measure this strength, we compare to the case of a flow fleld with the same energy distribution where the modes are statistically independent, as is the case in Gaussian noise. It is shown that the turbulent flow self-organizes towards a state in which the nonlinearity is reduced, and it is discussed what the implications of this reduction are. Also, in two dimensions it is illustrated how this self-organization manifests itself through the appearance of well-deflned vortical flow structures. In the second part of the manuscript, we investigate the dynamics of the Hasegawa- Wakatani model, a model relevant in the study of magnetically conflned fusion plasmas. The two-dimensional version of this model is considered, which includes some key features of the turbulent dynamics of a tokamak-edge. We consider the limit of the model in which the nonlinearity is reduced with respect to the linear forces. For this weakly nonlinear, wave dominated regime, analytical predictions suggest the presence of a feedback loop in which energy is transferred to highly anisotropic zonal flows by nonlocal interactions. We confirm these predictions and we demonstrate a strong suppression of the turbulent radial particle flux. In wall bounded geometry, the same mechanism is observed and here also the flux is eflciently reduced by the turbulence-zonal flow interaction.
Download or read book Thermodynamic Approaches in Engineering Systems written by Stanislaw Sieniutycz and published by Elsevier. This book was released on 2016-05-20 with total page 740 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thermodynamic Approaches in Engineering Systems responds to the need for a synthesizing volume that throws light upon the extensive field of thermodynamics from a chemical engineering perspective that applies basic ideas and key results from the field to chemical engineering problems. This book outlines and interprets the most valuable achievements in applied non-equilibrium thermodynamics obtained within the recent fifty years. It synthesizes nontrivial achievements of thermodynamics in important branches of chemical and biochemical engineering. Readers will gain an update on what has been achieved, what new research problems could be stated, and what kind of further studies should be developed within specialized research. - Presents clearly structured chapters beginning with an introduction, elaboration of the process, and results summarized in a conclusion - Written by a first-class expert in the field of advanced methods in thermodynamics - Provides a synthesis of recent thermodynamic developments in practical systems - Presents very elaborate literature discussions from the past fifty years
Download or read book What is fluid turbulence written by Gert Naue and published by TWENTYSIX. This book was released on 2018-07-19 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents an innovative wave structure theory of turbulence. The most important advancement is the provision of turbulence parameters of the optimal self-organization of turbulence from theoretical investigations via information entropy assessments. The new theoretical results are in very good agreement with the experimentally confirmed results of turbulent convection velocity fields at free and forced turbulence. In connection with the logarithmic wall law, it is shown that there is no viscous sublayer. The formulation of the oscillation problem of turbulence and the solution of boundary value tasks with coordinate systems adapted to the specific task are provided for many technically significant turbulent flows, including smooth and rough pipe flow, confusor and diffuser flow, swirl flow, stirrer flow, inlet flow, intermittency, wake flow and free jets. An epistemological component of the innovation is the representation of turbulence by con-travariant vector fields which are characterized by the stability of the turbulence structures at changed structural density. The turbulence structures act as active momentum transmitters of refracted monopoles, dipoles, tripoles and quadrupoles in the flow field. The dissipation mechanism with regard to the processes in turbulence structures is, for the first time, qualita-tively and quantitatively described. The transition from the contravariant turbulence velocity field to the covariant convection velocity field induce refraction and entanglement. The principles of turbulence act as fractal principle, reflection principle, entanglement principle, refractive principle and convolution principle. The wave structure theory of turbulence provides an arraying tool for further investigations into numerous open problems.
Download or read book Self Organization in Plasma Flows and Turbulence written by and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Self Organization of Complex Structures written by Frank Schweitzer and published by CRC Press. This book was released on 1997-07-16 with total page 624 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the past twenty years, a broad spectrum of theories and methods have been developed in physics, chemistry and molecular biology to explain structure formation in complex systems. These methods have been applied to many different fields such as economics, sociology and town planning, and this book reflects the interdisciplinary nature of complexity and self-organisation. The main focus is on the emergence of collective phenomena from individual or microscopic interactions. Presents a wide-ranging overview from fundamental aspects of the evolution of complexity, to applications in biology, ecology, sociology, economics, and urban structure formation.
Download or read book Turbulence in Fluids written by Marcel Lesieur and published by Kluwer Academic Pub. This book was released on 1997 with total page 515 pages. Available in PDF, EPUB and Kindle. Book excerpt: Turbulence in Fluids is an attempt to reconcile the theory of turbulence, too often presented in a formal, isolated mathematical context, with the general theory of fluid dynamics. It reviews, in a unifying manner, the main characteristics and general theorems of rotational fluids (liquids or gases), with applications to aerodynamics and geophysical fluid dynamics. Emphasis is placed both on unpredictability, mixing, and coherent vortices or structures. Transition to turbulence in wall or free-shear flows is considered both on the basis of linear-instability theory and of experiments or numerical simulations. Thermal convection is also studied. This third edition presents in a synthetic manner coherent vortices existing both in free or wall-bounded shear flows and in isotropic turbulence. A new mechanics of elementary vortices is built, involving spirals, dipoles, pairings, dislocations, longitudinal hairpins, streaks... It is seen how turbulence topology reacts to the action of stable stratification, rotation, separation or compressibility. The book discusses the phenomenological theories of isotropic turbulence and turbulent diffusion, both in Fourier and physical spaces. It emphasizes the use of two-point closures and stochastic models, a powerful tool allowing representation of strongly nonlinear actions. The role of helicity is considered. A theory of spectral eddy viscosity and backscatter is proposed. The latter phenomenon is shown to govern inverse cascades of passive scalars and small-scale uncertainty. The Renormalization-Group techniques are assessed. The concept of two-dimensional turbulence is looked at, as the simplest approximation of large-scale atmosphere and ocean dynamics. The latter is also studied using geostrophic-turbulence theory. New ideas on cyclogenesis in thermal fronts are presented. Numerous experimental, environmental and aerodynamic examples are provided. A systematic recourse is made to direct and large-eddy-numerical simulations (LES) as a tool for exploring turbulence media. A complete account of the latest dynamic and selective LES techniques is given in this edition. This monograph is a unique tool for graduate students and researchers in mechanical and aerospace engineering, applied mathematics, physics, meteorology, oceanography and astrophysics. It views the problem of turbulence in a very general way: statistical theories, intermittency, transition, coherent structures, singularities, unpredictability or deterministic chaos are only small pieces of the same puzzle, which have to be assembled.
Download or read book Remote Sensing of Turbulence written by Victor Raizer and published by CRC Press. This book was released on 2021-10-03 with total page 273 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers a unique multidisciplinary integration of the physics of turbulence and remote sensing technology. Remote Sensing of Turbulence provides a new vision on the research of turbulence and summarizes the current and future challenges of monitoring turbulence remotely. The book emphasizes sophisticated geophysical applications, detection, and recognition of complex turbulent flows in oceans and the atmosphere. Through several techniques based on microwave and optical/IR observations, the text explores the technological capabilities and tools for the detection of turbulence, their signatures, and variability. FEATURES Covers the fundamental aspects of turbulence problems with a broad geophysical scope for a wide audience of readers Provides a complete description of remote-sensing capabilities for observing turbulence in the earth’s environment Establishes the state-of-the-art remote-sensing techniques and methods of data analysis for turbulence detection Investigates and evaluates turbulence detection signatures, their properties, and variability Provides cutting-edge remote-sensing applications for space-based monitoring and forecasts of turbulence in oceans and the atmosphere This book is a great resource for applied physicists, the professional remote sensing community, ecologists, geophysicists, and earth scientists.
Download or read book Self organization in Turbulence and Plasma Flows written by and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Social Self Organization written by Dirk Helbing and published by Springer. This book was released on 2012-05-05 with total page 343 pages. Available in PDF, EPUB and Kindle. Book excerpt: What are the principles that keep our society together? This question is even more difficult to answer than the long-standing question, what are the forces that keep our world together. However, the social challenges of humanity in the 21st century ranging from the financial crises to the impacts of globalization, require us to make fast progress in our understanding of how society works, and how our future can be managed in a resilient and sustainable way. This book can present only a few very first steps towards this ambitious goal. However, based on simple models of social interactions, one can already gain some surprising insights into the social, ``macro-level'' outcomes and dynamics that is implied by individual, ``micro-level'' interactions. Depending on the nature of these interactions, they may imply the spontaneous formation of social conventions or the birth of social cooperation, but also their sudden breakdown. This can end in deadly crowd disasters or tragedies of the commons (such as financial crises or environmental destruction). Furthermore, we demonstrate that classical modeling approaches (such as representative agent models) do not provide a sufficient understanding of the self-organization in social systems resulting from individual interactions. The consideration of randomness, spatial or network interdependencies, and nonlinear feedback effects turns out to be crucial to get fundamental insights into how social patterns and dynamics emerge. Given the explanation of sometimes counter-intuitive phenomena resulting from these features and their combination, our evolutionary modeling approach appears to be powerful and insightful. The chapters of this book range from a discussion of the modeling strategy for socio-economic systems over experimental issues up the right way of doing agent-based modeling. We furthermore discuss applications ranging from pedestrian and crowd dynamics over opinion formation, coordination, and cooperation up to conflict, and also address the response to information, issues of systemic risks in society and economics, and new approaches to manage complexity in socio-economic systems. Selected parts of this book had been previously published in peer reviewed journals.
Download or read book The Theory of Homogeneous Turbulence written by G. K. Batchelor and published by Cambridge University Press. This book was released on 1953 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a reissue of Professor Batchelor's text on the theory of turbulent motion, which was first published by Cambridge Unviersity Press in 1953. It continues to be widely referred to in the professional literature of fluid mechanics, but has not been available for several years. This classic account includes an introduction to the study of homogeneous turbulence, including its mathematic representation and kinematics. Linear problems, such as the randomly-perturbed harmonic oscillator and turbulent flow through a wire gauze, are then treated. The author also presents the general dynamics of decay, universal equilibrium theory, and the decay of energy-containing eddies. There is a renewed interest in turbulent motion, which finds applications in atmospheric physics, fluid mechanics, astrophysics, and planetary science.
Download or read book Selforganization and turbulence in liquids written by Werner Ebeling and published by . This book was released on 1984 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:
