Rayleigh Bnard Convection
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Author | : David Goluskin |
Publisher | : Springer |
Total Pages | : 73 |
Release | : 2015-11-21 |
Genre | : Science |
ISBN | : 3319239414 |
This Brief describes six basic models of buoyancy-driven convection in a fluid layer: three configurations of internally heated convection and three configurations of Rayleigh-Bénard convection. The author discusses the main quantities that characterize heat transport in each model, along with the constraints on these quantities. This presentation is the first to place the various models in a unified framework, and similarities and differences between the cases are highlighted. Necessary and sufficient conditions for convective motion are given. For the internally heated cases only, parameter-dependent lower bounds on the mean fluid temperature are proven, and results of past simulations and laboratory experiments are summarized and reanalyzed. The author poses several open questions for future study.
Author | : Alexander V Getling |
Publisher | : World Scientific |
Total Pages | : 256 |
Release | : 1998-03-06 |
Genre | : Science |
ISBN | : 9814498971 |
This invaluable book presents a concise but systematic account of the formation of spatial flow structures in a horizontal fluid layer heated from below. Flows of this type, known as Rayleigh-Bénard convection, show important features of behaviour inherent not only in various hydrodynamic-instability phenomena but also in nonlinear pattern-forming processes in other contexts. The book describes the basic methods of investigating convection patterns, and the types of two- and three-dimensional flows, pattern defects, and sequences of convection-regime changes.The author pays special attention to the question of how various factors (mainly reducible to initial and boundary conditions) determine the shapes and sizes of the structures which develop. In this way, the role of order and disorder in flow patterns, as a factor strongly affecting the character of the evolution of structures, is revealed. The presentation emphasizes the physical picture of these phenomena, without excessive mathematical detail.
Author | : Alexander V. Getling |
Publisher | : World Scientific |
Total Pages | : 264 |
Release | : 1998 |
Genre | : Science |
ISBN | : 9789810226572 |
This invaluable book presents a concise but systematic account of the formation of spatial flow structures in a horizontal fluid layer heated from below. Flows of this type, known as Rayleigh-Bnard convection, show important features of behaviour inherent not only in various hydrodynamic-instability phenomena but also in nonlinear pattern-forming processes in other contexts. The book describes the basic methods of investigating convection patterns, and the types of two- and three-dimensional flows, pattern defects, and sequences of convection-regime changes.The author pays special attention to the question of how various factors (mainly reducible to initial and boundary conditions) determine the shapes and sizes of the structures which develop. In this way, the role of order and disorder in flow patterns, as a factor strongly affecting the character of the evolution of structures, is revealed. The presentation emphasizes the physical picture of these phenomena, without excessive mathematical detail.
Author | : P. G. Drazin |
Publisher | : Cambridge University Press |
Total Pages | : 278 |
Release | : 2002-09-09 |
Genre | : Science |
ISBN | : 1316582876 |
Instability of flows and their transition to turbulence are widespread phenomena in engineering and the natural environment, and are important in applied mathematics, astrophysics, biology, geophysics, meteorology, oceanography and physics as well as engineering. This is a textbook to introduce these phenomena at a level suitable for a graduate course, by modelling them mathematically, and describing numerical simulations and laboratory experiments. The visualization of instabilities is emphasized, with many figures, and in references to more still and moving pictures. The relation of chaos to transition is discussed at length. Many worked examples and exercises for students illustrate the ideas of the text. Readers are assumed to be fluent in linear algebra, advanced calculus, elementary theory of ordinary differential equations, complex variables and the elements of fluid mechanics. The book is aimed at graduate students but will also be very useful for specialists in other fields.
Author | : Innocent Mutabazi |
Publisher | : Springer |
Total Pages | : 249 |
Release | : 2010-06-14 |
Genre | : Science |
ISBN | : 0387251111 |
The impact of Benard's discovery on 20th century physics is crucial to any modern research area such as fluid dynamics, nonlinear dynamics, and non-equilibrium thermodynamics, just to name a few. This centenary review shows the broad scope and development including modern applications, edited and written by experts in the field.
Author | : Hiroyuki Ozoe |
Publisher | : Imperial College Press |
Total Pages | : 237 |
Release | : 2005 |
Genre | : Technology & Engineering |
ISBN | : 1860947123 |
The manufacture of silicon single crystals is one of the most important processes in the information technology industry. This book explains the details of liquid metal convection, providing a guide for the elegant operation and control of Czochralski crystal growth, including the effect of magnetic control. Also covered is the newly emerging research field of the application of strong magnetic field using a superconducting magnet. Model equations for the phenomena in the magnetic field are treated in detail, which will be of much use to researchers and engineers in the field. The coverage includes the effect of the Lorentz force in materials processing and the magnetic force of recently developed superconducting magnets. It examines heat, mass and momentum transfer in electro-conducting and non-conducting fluids under normal and very strong magnetic fields. The book also treats the Czochralski single crystal growth process and continuous steel casting process as the most important current applications of magnetic fields. Numerical approaches are compared with the corresponding experimental measurements.
Author | : N. O. Weiss |
Publisher | : Cambridge University Press |
Total Pages | : 411 |
Release | : 2014-10-30 |
Genre | : Science |
ISBN | : 052119055X |
Leading experts present the current state of knowledge of the subject of magnetoconvection from the viewpoint of applied mathematics.
Author | : Antonio Barletta |
Publisher | : Springer |
Total Pages | : 283 |
Release | : 2019-01-02 |
Genre | : Technology & Engineering |
ISBN | : 3030061949 |
This book addresses the concepts of unstable flow solutions, convective instability and absolute instability, with reference to simple (or toy) mathematical models, which are mathematically simple despite their purely abstract character. Within this paradigm, the book introduces the basic mathematical tools, Fourier transform, normal modes, wavepackets and their dynamics, before reviewing the fundamental ideas behind the mathematical modelling of fluid flow and heat transfer in porous media. The author goes on to discuss the fundamentals of the Rayleigh-Bénard instability and other thermal instabilities of convective flows in porous media, and then analyses various examples of transition from convective to absolute instability in detail, with an emphasis on the formulation, deduction of the dispersion relation and study of the numerical data regarding the threshold of absolute instability. The clear descriptions of the analytical and numerical methods needed to obtain these parametric threshold data enable readers to apply them in different or more general cases. This book is of interest to postgraduates and researchers in mechanical and thermal engineering, civil engineering, geophysics, applied mathematics, fluid mechanics, and energy technology.
Author | : Lloyd N. Trefethen |
Publisher | : SIAM |
Total Pages | : 179 |
Release | : 2000-07-01 |
Genre | : Mathematics |
ISBN | : 0898714656 |
Mathematics of Computing -- Numerical Analysis.
Author | : E. L. Koschmieder |
Publisher | : Cambridge University Press |
Total Pages | : 356 |
Release | : 1993-02-26 |
Genre | : Mathematics |
ISBN | : 9780521402040 |
This book describes the motions resulting from heating a fluid layer from below.