Hydrodynamic Instabilities

Author: François Charru

Publisher: Cambridge University Press

ISBN: 1139500546

Category: Science

Page: N.A

View: 9516

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The instability of fluid flows is a key topic in classical fluid mechanics because it has huge repercussions for applied disciplines such as chemical engineering, hydraulics, aeronautics, and geophysics. This modern introduction is written for any student, researcher, or practitioner working in the area, for whom an understanding of hydrodynamic instabilities is essential. Based on a decade's experience of teaching postgraduate students in fluid dynamics, this book brings the subject to life by emphasizing the physical mechanisms involved. The theory of dynamical systems provides the basic structure of the exposition, together with asymptotic methods. Wherever possible, Charru discusses the phenomena in terms of characteristic scales and dimensional analysis. The book includes numerous experimental studies, with references to videos and multimedia material, as well as over 150 exercises which introduce the reader to new problems.

Advances in Passive Microwave Remote Sensing of Oceans

Author: Victor Raizer

Publisher: CRC Press

ISBN: 149876777X

Category: Technology & Engineering

Page: 292

View: 9759

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This book demonstrates the capabilities of passive microwave technique for enhanced observations of ocean features, including the detection of (sub)surface events and/or disturbances while laying out the benefits and boundaries of these methods. It represents not only an introduction and complete description of the main principles of ocean microwave radiometry and imagery, but also provides guidance for further experimental studies. Furthermore, it expands the analysis of remote sensing methods, models, and techniques and focuses on a high-resolution multiband imaging observation concept. Such an advanced approach provides readers with a new level of geophysical information and data acquisition granting the opportunity to improve their expertise on advanced microwave technology, becoming now an indispensable tool for diagnostics of ocean phenomena and disturbances.

Foam Films and Foams

Fundamentals and Applications

Author: Dotchi Exerowa,Georgi Gochev,Dimo Platikanov,Libero Liggieri,Reinhard Miller

Publisher: CRC Press

ISBN: 1351117726

Category: Science

Page: 502

View: 9095

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This book describes in detail the scientific philosophy of the formation and stabilization-destabilization of foams. It presents all hierarchical steps of a foam, starting from the properties of adsorption layers formed by foaming agents, discussing the properties of foam films as the building blocks of a foam, and then describing details of real foams, including many fields of application. The information presented in the book is useful to people working on the formulation of foams or attempting to avoid or destruct foams in unwanted situations.

Falling Liquid Films

Author: S. Kalliadasis,C. Ruyer-Quil,B. Scheid,M. G. Velarde

Publisher: Springer Science & Business Media

ISBN: 9781848823679

Category: Mathematics

Page: 440

View: 8959

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Falling Liquid Films gives a detailed review of state-of-the-art theoretical, analytical and numerical methodologies, for the analysis of dissipative wave dynamics and pattern formation on the surface of a film falling down a planar inclined substrate. This prototype is an open-flow hydrodynamic instability, that represents an excellent paradigm for the study of complexity in active nonlinear media with energy supply, dissipation and dispersion. It will also be of use for a more general understanding of specific events characterizing the transition to spatio-temporal chaos and weak/dissipative turbulence. Particular emphasis is given to low-dimensional approximations for such flows through a hierarchy of modeling approaches, including equations of the boundary-layer type, averaged formulations based on weighted residuals approaches and long-wave expansions. Whenever possible the link between theory and experiment is illustrated, and, as a further bridge between the two, the development of order-of-magnitude estimates and scaling arguments is used to facilitate the understanding of basic, underlying physics. This monograph will appeal to advanced graduate students in applied mathematics, science or engineering undertaking research on interfacial fluid mechanics or studying fluid mechanics as part of their program. It will also be of use to researchers working on both applied, fundamental theoretical and experimental aspects of thin film flows, as well as engineers and technologists dealing with processes involving isothermal or heated films. This monograph is largely self-contained and no background on interfacial fluid mechanics is assumed.

A Physical Introduction to Suspension Dynamics

Author: Élisabeth Guazzelli,Jeffrey F. Morris

Publisher: Cambridge University Press

ISBN: 1139503936

Category: Science

Page: N.A

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Understanding the behaviour of particles suspended in a fluid has many important applications across a range of fields, including engineering and geophysics. Comprising two main parts, this book begins with the well-developed theory of particles in viscous fluids, i.e. microhydrodynamics, particularly for single- and pair-body dynamics. Part II considers many-body dynamics, covering shear flows and sedimentation, bulk flow properties and collective phenomena. An interlude between the two parts provides the basic statistical techniques needed to employ the results of the first (microscopic) in the second (macroscopic). The authors introduce theoretical, mathematical concepts through concrete examples, making the material accessible to non-mathematicians. They also include some of the many open questions in the field to encourage further study. Consequently, this is an ideal introduction for students and researchers from other disciplines who are approaching suspension dynamics for the first time.

A First Course in Computational Fluid Dynamics

Author: H. Aref,S. Balachandar

Publisher: Cambridge University Press

ISBN: 1107178517

Category: Science

Page: 417

View: 2638

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Fluid mechanics is a branch of classical physics that has a rich tradition in applied mathematics and numerical methods. It is at work virtually everywhere, from nature to technology. This broad and fundamental coverage of computational fluid dynamics (CFD) begins with a presentation of basic numerical methods and flows into a rigorous introduction to the subject. A heavy emphasis is placed on the exploration of fluid mechanical physics through CFD, making this book an ideal text for any new course that simultaneously covers intermediate fluid mechanics and computation. Ample examples, problems and computer exercises are provided to allow students to test their understanding of a variety of numerical methods for solving flow physics problems, including the point-vortex method, numerical methods for hydrodynamic stability analysis, spectral methods and traditional CFD topics.

An Introduction to Magnetohydrodynamics

Author: P. A. Davidson

Publisher: Cambridge University Press

ISBN: 9780521794879

Category: Mathematics

Page: 431

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This book is an introductory text on magnetohydrodynamics (MHD) - the study of the interaction of magnetic fields and conducting fluids.

Was ist Fluid-Turbulenz?

Turbulente Oszillation und Konvektion

Author: Gert Naue

Publisher: TWENTYSIX

ISBN: 3740736402

Category: Science

Page: 420

View: 947

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Es wird eine innovative Wellenstrukturtheorie der Turbulenz vorgestellt. Der wichtigste Fortschritt ist die Bereitstellung von Turbulenzparametern aus theoretischen Untersuchungen der optimalen Selbstorganisation der Turbulenz durch Bewertungen mit Hilfe der Informationsentropie. Die neuen theoretischen Ergebnisse stimmen mit den experimentell gesicherten Resultaten turbulenter Konvektionsgeschwindigkeitsfelder bei freier und erzwungener Turbulenz sehr gut überein. Im Zusammenhang mit dem logarithmischen Wandgesetz wird gezeigt, dass es keine viscose Unterschicht gibt. Die Formulierung des Oszillationsproblems der Turbulenz und die Lösung der Randwertaufgaben mit an die konkrete Aufgabenstellung angepassten Koordinatensystemen erfolgt für viele technisch bedeutsame turbulente Strömungen, u.a. glatte und raue Rohrströmung, Konfusor- und Diffusorströmung, Drallströmung, Rührerströmung, Einlaufströmung, Intermittenz, Nachlaufströmung und Freistrahlen. Eine erkenntnistheoretische Komponente der Innovation ist die Darstellung der Turbulenz durch kontravariante Vektorfelder, die sich durch die Beständigkeit der Turbulenzstrukturen bei Veränderung der Strukturdichte auszeichnen. Die Turbulenzstrukturen wirken als aktive Impulssender gebrochener Monopole, Dipole, Tripole und Quadrupole im Strömungsfeld. Der Dissipationsmechanismus wird qualitativ und quantitativ erstmalig hinsichtlich der Prozesse in den Turbulenzstrukturen beschrieben. Den Übergang vom kontravarianten Turbulenzgeschwindigkeitsfeld zum kovarianten Konvektionsgeschwindigkeitsfeld ermöglichen die Brechung und Verschränkung. Es wirken die Prinzipien der Turbulenz als Fraktalprinzip, Spiegelungsprinzip, Verschränkungsprinzip, Brechungsprinzip und Faltungsprinzip Die Wellenstrukturtheorie der Turbulenz bietet ein ordnendes Instrument weiterer Untersuchungen zu zahlreichen offenen Problemen.

Hydrodynamics and Nonlinear Instabilities

Author: Claude Godrèche,Paul Manneville,Bernard Castaing

Publisher: Cambridge University Press

ISBN: 9780521017633

Category: Science

Page: 700

View: 5095

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This book presents five sets of pedagogical lectures by internationally respected researchers on nonlinear instabilities and the transition to turbulence in hydrodynamics. The book begins with a general introduction to hydrodynamics covering fluid properties, flow measurement, dimensional analysis and turbulence. Chapter two reviews the special characteristics of instabilities in open flows. Chapter three presents mathematical tools for multiscale analysis and asymptotic matching applied to the dynamics of fronts and localized nonlinear states. Chapter four gives a detailed review of pattern forming instabilities. The final chapter provides a detailed and comprehensive introduction to the instability of flames, shocks and detonations. Together, these lectures provide a thought-provoking overview of current research in this important area.

Featured Reviews in Mathematical Reviews 1997-1999

With Selected Reviews of Classic Books and Papers from 1940-1969

Author: Donald G. Babbitt,Jane E. Kister

Publisher: American Mathematical Soc.

ISBN: 9780821896709

Category: Mathematics

Page: 541

View: 518

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This second volume of Featured Reviews makes available special detailed reviews of some of the most important mathematical articles and books published from 1997 through 1999. Also included are excellent reviews of several classic books and articles published prior to 1970. Among those reviews, for example, are the following: Homological Algebra by Henri Cartan and Samuel Eilenberg, reviewed by G. Hochschild; Faisceaux algebriques coherents by Jean-Pierre Serre, reviewed by C. Chevalley; and On the Theory of General Partial Differential Operators by Lars Hormander, reviewed by J. L. Lions. In particular, those seeking information on current developments outside their own area of expertise will find the volume very useful. By identifying some of the best publications, papers, and books that have had or are expected to have a significant impact in applied and pure mathematics, this volume will serve as a comprehensive guide to important new research across all fields covered by MR.

Computational Physics

Mit Beispielen in Fortran und Matlab

Author: Michael Bestehorn

Publisher: Walter de Gruyter GmbH & Co KG

ISBN: 3110373041

Category: Science

Page: 331

View: 947

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Drawing on examples from various areas of physics, this textbook introduces the reader to computer-based physics using Fortran. It elucidates a broad palette of topics, including fundamental phenomena in classical mechanics and dynamic systems, effects in field theories and macroscopic structure formation, Monte Carlo methods in statistical physics, and hydrodynamics.

Encyclopedia of applied physics

Electronic circuits to fusion, magnetic confinement

Author: George L. Trigg,Eduardo S. Vera,Walter Greulich

Publisher: Vch Pub

ISBN: 9781560810650

Category: Science

Page: 607

View: 387

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