Wave
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Water Wave Scattering
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Author : Birendra Nath Mandal
language : en
Publisher: CRC Press
Release Date : 2015-05-21
Water Wave Scattering written by Birendra Nath Mandal and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-05-21 with Mathematics categories.
The theory of water waves is most varied and is a fascinating topic. It includes a wide range of natural phenomena in oceans, rivers, and lakes. It is mostly concerned with elucidation of some general aspects of wave motion including the prediction of behaviour of waves in the presence of obstacles of some special configurations that are of interest to ocean engineers. Unfortunately, even the apparently simple problems appear to be difficult to tackle mathematically unless some simplified assumptions are made. Fortunately, one can assume water to be an incompressible, in viscid and homogeneous fluid. The linearised theory of water waves is based on the assumption that the amplitude of the motion is small compared to the wave length. If rotational motion is assumed, then the linearised theory of water waves is essentially concerned with solving the Laplace equation in the water region together with linearised boundary condition. There are varied classes of problems that have been/are being studied mathematically in the literature within the framework of linearised theory of water waves for last many years. Scattering by obstacles of various geometrical configurations is one such class of water wave problems. This book is devoted to advanced mathematical work related to water wave scattering. Emphasis is laid on the mathematical and computational techniques required to study these problems mathematically. The book contains nine chapters. The first chapter is introductory in nature. It includes the basic equations of linearised theory for a single layer fluid, a two-layer fluid, solution of dispersion equations, and a general idea on scattering problems and the energy identity in water with a free surface. Chapter 2 is concerned with wave scattering involving thin rigid plates of various geometrical configurations, namely, plane vertical barriers or curved barriers, inclined barriers, horizontal barrier, and also thin elastic vertical plate. For the horizontal case, the barrier is submerged below an ice-cover modelled as a thin elastic plate floating on water. Chapter 3 discusses wave scattering by a rectangular trench by using Galerkin technique. Chapter 4 involves wave scattering by a dock by using Carleman singular integral equation followed by reduction to Riemann-Hilbert problems. Chapter 5 involves several wave scattering problems involving discontinuities at the upper surface of water by using the Wiener-Hopf technique, by reduction to Carleman singular integral equations. Chapter 6 considers scattering by a long horizontal circular cylinder either half immersed or completely submerged. In chapter 7, some important energy identities are derived for scattering problems in a single-layer and also in a two-layer fluid. Chapter 8 is concerned with wave scattering in a two-layer fluid by a thin vertical plate and by a long horizontal circular cylinder submerged in either of the two layers. Chapter 9 is the final chapter which considers a number of wave scattering problems in a single-layer or a two-layer fluid with variable bottom topography by using a simplified perturbation analysis It is hoped that this book will be useful to researchers on water waves. The several wave scattering problems presented in the book are mostly based on the research work carried out by the authors and their associates.
Wave Propagation In Viscoelastic And Poroelastic Continua
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Author : Martin Schanz
language : en
Publisher: Springer Science & Business Media
Release Date : 2001-05-08
Wave Propagation In Viscoelastic And Poroelastic Continua written by Martin Schanz and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001-05-08 with Technology & Engineering categories.
Wave propagation is an important topic in engineering sciences, especially, in the field of solid mechanics. A description of wave propagation phenomena is given by Graff [98]: The effect of a sharply applied, localized disturbance in a medium soon transmits or 'spreads' to other parts of the medium. These effects are familiar to everyone, e.g., transmission of sound in air, the spreading of ripples on a pond of water, or the transmission of radio waves. From all wave types in nature, here, attention is focused only on waves in solids. Thus, solely mechanical disturbances in contrast to electro-magnetic or acoustic disturbances are considered. of waves - the compression wave similar to the In solids, there are two types pressure wave in fluids and, additionally, the shear wave. Due to continual reflec tions at boundaries and propagation of waves in bounded solids after some time a steady state is reached. Depending on the influence of the inertia terms, this state is governed by a static or dynamic equilibrium in frequency domain. However, if the rate of onset of the load is high compared to the time needed to reach this steady state, wave propagation phenomena have to be considered.
The Wave In The Mind
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Author : Ursula K. Le Guin
language : en
Publisher: Shambhala Publications
Release Date : 2004-02-17
The Wave In The Mind written by Ursula K. Le Guin and has been published by Shambhala Publications this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004-02-17 with Literary Criticism categories.
Join Ursula K. Le Guin as she explores a broad array of subjects, ranging from Tolstoy, Twain, and Tolkien to women's shoes, beauty, and family life. With her customary wit, intelligence, and literary craftsmanship, she offers a diverse and highly engaging set of readings. The Wave in the Mind includes some of Le Guin's finest literary criticism, rare autobiographical writings, performance art pieces, and, most centrally, her reflections on the arts of writing and reading.
Shock Waves
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Author : Kazuyoshi Takayama
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Shock Waves written by Kazuyoshi Takayama and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
Shock wave research covers important inderdisciplinary areas which range from basic topics on gasdynamics, combustion and detonation, physico-chemistry of high temperature gases, plasma physics, astro and geophysics, materials science, astronautics and space technology to medical and industrial applications. This book includes 202 papers presented at the 18th the International Symposium on Shock Waves which describe the research frontier of shock wave phenopmena and 14 plenary lectures which show the state of the art of various fields of shock wave research. This proceedings is a unique collection of most important and updated shock wave research.
Dynamic Fields And Waves
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Author : A Norton
language : en
Publisher: CRC Press
Release Date : 2019-08-22
Dynamic Fields And Waves written by A Norton and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-08-22 with Science categories.
This book explores the use of waves on strings and sound waves to illustrate the behaviour of waves. It shows how Albert Einstein overturned Newtonian physics and predicted startling new effects such as time dilation and length contraction for objects travelling at close to the speed of light.
Cold Plasma Waves
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Author : H.G. Booker
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Cold Plasma Waves written by H.G. Booker and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
The book aims to present current knowledge concerning the propagation of electro magnetic waves in a homogeneous magnetoplasma for which temperature effects are unimportant. It places roughly equal emphasis on the radio and the . hydromagnetic parts of the electromagnetic spectrum. The dispersion properties of a magnetoplasma are treated as a function both of wave frequency (assumed real) and of ionization density. However, there is little discussion of propagation in a stratified medium, for of collisions is included only which reference may be made to Budden [1] . The effect in so far as this can be done with simplicity. The book describes how pulses are radiated from both small and large antennas embedded in a homogeneous magneto plasma. The power density radiated from a type of dipole antenna is studied as a function of direction of radiation in all bands of wave frequency. Input reactance is not treated, but the dependence of radiation resistance on wave frequency is described for the entire electromagnetic spectrum. Also described is the relation between beaming and guidance for Alfven waves.
Breaking And Dissipation Of Ocean Surface Waves
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Author : Alexander Babanin
language : en
Publisher: Cambridge University Press
Release Date : 2011-05-19
Breaking And Dissipation Of Ocean Surface Waves written by Alexander Babanin and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-05-19 with Science categories.
Wave breaking represents one of the most interesting and challenging problems for fluid mechanics and physical oceanography. Over the last fifteen years our understanding has undergone a dramatic leap forward, and wave breaking has emerged as a process whose physics is clarified and quantified. Ocean wave breaking plays the primary role in the air-sea exchange of momentum, mass and heat, and it is of significant importance for ocean remote sensing, coastal and ocean engineering, navigation and other practical applications. This book outlines the state of the art in our understanding of wave breaking and presents the main outstanding problems. It is a valuable resource for anyone interested in this topic, including researchers, modellers, forecasters, engineers and graduate students in physical oceanography, meteorology and ocean engineering.
Wave
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Author : Sonali Deraniyagala
language : fr
Publisher:
Release Date : 2015-06-04
Wave written by Sonali Deraniyagala and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-06-04 with categories.
Le matin du 26 décembre 2004, un tsunami frappe l’Océan indien. Sonali Deraniyagala, en vacances au Sri Lanka, son pays natal, en réchappe miraculeusement. Mais, de sa famille, elle est la seule. La vague lui a pris ses parents, son mari et ses deux petits garçons. "Wave" raconte l’histoire de ce jour, où elle a tout perdu, et de tous ceux qui ont suivi. Les mois, les années lorsque l’insupportable déchirement du souvenir succède aux premiers moments d’horreur. La matière de ce livre, c’est la peine impalpable, indescriptible de la narratrice. Sonali Deraniyagala réussit un récit poétique, sans concession et incroyablement digne sur comment survivre à l’inimaginable.
Wave
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Author : Sonali Deraniyagala
language : en
Publisher: McClelland & Stewart
Release Date : 2013-03-05
Wave written by Sonali Deraniyagala and has been published by McClelland & Stewart this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-03-05 with Biography & Autobiography categories.
A brave, intimate, beautifully crafted memoir by a survivor of the tsunami that struck the Sri Lankan coast in 2004 and took her entire family. On December 26, Boxing Day, Sonali Deraniyagala, her English husband, her parents, her two young sons, and a close friend were ending Christmas vacation at the seaside resort of Yala on the south coast of Sri Lanka when a wave suddenly overtook them. She was only to learn later that this was a tsunami that devastated coastlines through Southeast Asia. When the water began to encroach closer to their hotel, they began to run, but in an instant, water engulfed them, Sonali was separated from her family, and all was lost. Sonali Deraniyagala has written an extraordinarily honest, utterly engrossing account of the surreal tragedy of a devastating event that all at once ended her life as she knew it and her journey since in search of understanding and redemption. It is also a remarkable portrait of a young family's life and what came before, with all the small moments and larger dreams that suddenly and irrevocably ended.
An Introduction To Metamaterials And Waves In Composites
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Author : Biswajit Banerjee
language : en
Publisher: CRC Press
Release Date : 2011-06-07
An Introduction To Metamaterials And Waves In Composites written by Biswajit Banerjee and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-06-07 with Science categories.
Requiring no advanced knowledge of wave propagation, An Introduction to Metamaterials and Waves in Composites focuses on theoretical aspects of metamaterials, periodic composites, and layered composites. The book gives novices a platform from which they can start exploring the subject in more detail. After introducing concepts related to elasticity, acoustics, and electrodynamics in media, the text presents plane wave solutions to the equations that describe elastic, acoustic, and electromagnetic waves. It examines the plane wave expansion of sources as well as scattering from curved interfaces, specifically spheres and cylinders. The author then covers electrodynamic, acoustic, and elastodynamic metamaterials. He also describes examples of transformations, aspects of acoustic cloaking, and applications of pentamode materials to acoustic cloaking. With a focus on periodic composites, the text uses the Bloch-Floquet theorem to find the effective behavior of composites in the quasistatic limit, presents the quasistatic equations of elastodynamic and electromagnetic waves, and investigates Brillouin zones and band gaps in periodic structures. The final chapter discusses wave propagation in smoothly varying layered media, anisotropic density of a periodic layered medium, and quasistatic homogenization of laminates. This book provides a launch pad for research into elastic and acoustic metamaterials. Many of the ideas presented have yet to be realized experimentally—the book encourages readers to explore these ideas and bring them to technological maturity.