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Computational Wave Dynamics

Computational Wave Dynamics
  • Author : Hitoshi Gotoh,Akio Okayasu,Yasunori Watanabe
  • Publisher :Unknown
  • Release Date :2013-06-04
  • Total pages :252
  • ISBN : 9789814449724
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Summary : This book provides a comprehensive description of the latest theory-supported numerical technologies, as well as scientific and engineering applications for water surface waves. Its contents are crafted to cater to a step-by-step learning of computational wave dynamics and ocean wave modeling. It provides a comprehensive description from underlying theories of free-surface flows, to practical computational applications for coastal and ocean engineering on the basis of computational fluid dynamics (CFD). The text may be used as a textbook for advanced undergraduate students and graduate students to understand the theoretical background of wave computations, and the recent progress of computational techniques for free-surface and interfacial flows, such as Volume of Fluid (VOF), Constrained Interpolation Profile (CIP), Lagrangian Particle (SPH, MPS), Distinct Element (DEM) and Euler-Lagrange Hybrid Methods. It is also suitable for researchers and engineers who wish to apply CFD techniques to ocean modeling and practical coastal problems involving sediment transport, wave-structure interaction and surf zone flows.

Computational Wave Dynamics

Computational Wave Dynamics
  • Author : Hitoshi Gotoh,Akio Okayasu,Yasunori Watanabe
  • Publisher :Unknown
  • Release Date :2013
  • Total pages :234
  • ISBN : 9814449717
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Computational Wave Dynamics

Computational Wave Dynamics
  • Author : Snehashish Chakraverty,Karunakar Perumandla
  • Publisher :Unknown
  • Release Date :2020-10
  • Total pages :229
  • ISBN : 0128195541
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Summary : Computational Wave Dynamics explains the analytical, semi-analytical and numerical methods for finding exact or approximate solutions to various linear and nonlinear differential equations governing wave-like flows. Waves exist almost everywhere in nature. Different types include water, sound, electromagnetic, seismic, and shock. This book explores the latest and most efficient linear and nonlinear differential equations that govern all waves with particular emphasis on water waves, helping the reader to incorporate a more profound numerical understanding of waves in a range of engineering solutions. Procedures, algorithms, and solutions are presented in a simple step-by-step style, helping readers with different backgrounds at various levels to engage with this topic. The breadth of different methods addressed in this one book creates a uniquely valuable resource for the comparison of equations, and acts as a very useful summary of recent research into computational wave dynamics.

Computational Wave Dynamics

Computational Wave Dynamics
  • Author : Snehashish Chakraverty,Karunakar Perumandla
  • Publisher :Unknown
  • Release Date :2020-10-01
  • Total pages :250
  • ISBN : 9780128227688
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Summary : Computational Wave Dynamics explains the analytical, semi-analytical, and numerical methods for finding exact or approximate solutions to various linear and nonlinear differential equations governing wave-like flows. The book explores the latest and most efficient linear and nonlinear differential equations that govern all waves with particular emphasis on water waves, helping the reader to incorporate a more profound numerical understanding of waves in a range of engineering solutions. Procedures, algorithms, and solutions are presented in a simple step-by-step style, helping readers with different backgrounds at various levels to engage with this topic. Waves exist almost everywhere in nature. Different types include water, sound, electromagnetic, seismic, and shock. The breadth of different methods addressed in this one book creates a uniquely valuable resource for the comparison of equations, and acts as a very useful summary of recent research into computational wave dynamics. Tackles ordinary and partial differential equations for wave dynamics, and provides approximation methods for solving them Uses easy to understand examples representing wave behavior to help introduce numerical solutions, as well as showing the theoretical justifications for such solutions Covers semi-implicit methods, the Kortweg-de-Vries equations, and many others in one resource Provides a uniquely valuable resource for the comparison of equations, and acts as a very useful summary of recent research into computational wave dynamics

Two Problems in Computational Wave Dynamics

Two Problems in Computational Wave Dynamics
  • Author : Kevin Carl Viner
  • Publisher :Unknown
  • Release Date :2011
  • Total pages :229
  • ISBN : OCLC:705001728
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Summary : Two problems in computational wave dynamics are considered: (i) the use of Klemp-Wilhelmson time splitting at large scales and (ii) analysis of wave-wave instabilities in nonhydrostatic and rotating mountain waves. The use of Klemp-Wilhelmson (KW) time splitting for large-scale and global modeling is assessed through a series of von Neumann accuracy and stability analyses. Two variations of the KW splitting are evaluated in particular: the original acousticmode splitting of Klemp and Wilhelmson (KW78) and a modified splitting due to Skamarock and Klemp (SK92) in which the buoyancy and vertical stratification terms are treated as fast-mode terms. The large-scale cases of interest are the problem of Rossby wave propagation on a resting background state and the classic baroclinic Eady problem. The results show that the original KW78 splitting is surprisingly inaccurate when applied to large-scale wave modes. The source of this inaccuracy is traced to the splitting of the hydrostatic balance terms between the small and large time steps. The errors in the KW78 splitting are shown to be largely absent from the SK92 scheme. Resonant wave-wave instability in rotating mountain waves is examined using a linear stability analysis based on steady-state solutions for flow over an isolated ridge. The analysis is performed over a parameter space spanned by the mountain height (Nh/U) and the Rossby number (U/fL). Steady solutions are found using a newly developed solver based on a nonlinear Newton iteration. Results from the steady solver show that the critical heights for wave overturning are smallest for the hydrostatic case and generally increase in the rotating wave regime. Results of the stability analyses show that the wave-wave instability exists at mountain heights even below the critical overturning values. The most unstable cases are found in the nonrotating regime while the range of unstable mountain heights between initial onset and critical overturning is largest for intermediate Rossby number.

Effective Computational Methods for Wave Propagation

Effective Computational Methods for Wave Propagation
  • Author : Nikolaos A. Kampanis,Vassilios Dougalis,John A. Ekaterinaris
  • Publisher :Unknown
  • Release Date :2008-02-25
  • Total pages :712
  • ISBN : 1420010875
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Summary : Due to the increase in computational power and new discoveries in propagation phenomena for linear and nonlinear waves, the area of computational wave propagation has become more significant in recent years. Exploring the latest developments in the field, Effective Computational Methods for Wave Propagation presents several modern, valuable computational methods used to describe wave propagation phenomena in selected areas of physics and technology. Featuring contributions from internationally known experts, the book is divided into four parts. It begins with the simulation of nonlinear dispersive waves from nonlinear optics and the theory and numerical analysis of Boussinesq systems. The next section focuses on computational approaches, including a finite element method and parabolic equation techniques, for mathematical models of underwater sound propagation and scattering. The book then offers a comprehensive introduction to modern numerical methods for time-dependent elastic wave propagation. The final part supplies an overview of high-order, low diffusion numerical methods for complex, compressible flows of aerodynamics. Concentrating on physics and technology, this volume provides the necessary computational methods to effectively tackle the sources of problems that involve some type of wave motion.

Ocean Wave Dynamics

Ocean Wave Dynamics
  • Author : Ian Young,Alexander Babanin
  • Publisher :Unknown
  • Release Date :2020-03-20
  • Total pages :396
  • ISBN : 9789811208683
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Summary : Ocean Wave Dynamics is the most up-to-date book of its kind on the three main processes responsible for the generation and evolution of ocean waves: (i) atmospheric input from the wind, (ii) wave breaking and (iii) nonlinear interactions.Ocean waves are important for many reasons. They are the major environmental impact on in the design of coastal or offshore structures. Ocean waves are also fundamental to the processes of coastal flooding and beach erosion. They will play a major role in storm related coastal flooding which will rise in frequency as a result of sea level rise. Ocean waves are also an important part of the coupled ocean-atmosphere system. They determine the roughness of the ocean surface and hence have an impact on winds, fluxes of energy, gases and heat to the ocean and even the stability of ice sheets.Containing the latest research on ocean waves, it is a valuable resource for an overview of knowledge in this important field.

Shock Wave Dynamics

Shock Wave Dynamics
  • Author : George Emanuel
  • Publisher :Unknown
  • Release Date :2012-12-18
  • Total pages :235
  • ISBN : 9781466564206
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Summary : Working knowledge of the relations of various quantities and their derivatives across a shock wave is useful for any advanced research involving shock waves. Although these relations can be derived in principle by any diligent student of the subject, the derivations are often not trivial, and once derived, neither the approach nor the result can be confidently verified. Comprehensive and analytical, Shock Wave Dynamics: Derivatives and Related Topics includes not only the final results but also the methods, which are of great practical value as examples of mathematical procedure in this field. The book focuses on shock wave derivatives under various conditions and extensively covers shock-generated vorticity, including a novel analysis of triple points. Special care is given to the presentation of assumptions, implementation requirements, and the illustrative examples included for partial verification of the preceding analysis. Designed both as a research monograph and for self study, Shock Wave Dynamics is a complete discussion of shock wave dynamics. An analytical exploration of shock wave phenomena, it will be interesting reading for experts in the field of high-speed gas dynamics. Given today's emphasis on numerical simulation, it will also be of interest to computational engineers as a source for code verification and validation.

Wave Dynamics, Mechanics and Physics of Microstructured Metamaterials

Wave Dynamics, Mechanics and Physics of Microstructured Metamaterials
  • Author : Mezhlum A. Sumbatyan
  • Publisher :Unknown
  • Release Date :2019-05-17
  • Total pages :254
  • ISBN : 9783030174705
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Summary : This book addresses theoretical and experimental methods for exploring microstructured metamaterials, with a special focus on wave dynamics, mechanics, and related physical properties. The authors use various mathematical and physical approaches to examine the mechanical properties inherent to particular types of metamaterials. These include: • Boundary value problems in reduced strain gradient elasticity for composite fiber-reinforced metamaterials • Self-organization of molecules in ferroelectric thin films • Combined models for surface layers of nanostructures • Computer simulation at the micro- and nanoscale • Surface effects with anisotropic properties and imperfect temperature contacts • Inhomogeneous anisotropic metamaterials with uncoupled and coupled surfaces or interfaces • Special interface finite elements and other numerical and analytical methods for composite structures

Computational Fluid Dynamics

Computational Fluid Dynamics
  • Author : John Wendt
  • Publisher :Unknown
  • Release Date :2008-11-04
  • Total pages :332
  • ISBN : 9783540850557
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Summary : Computational Fluid Dynamics: An Introduction grew out of a von Karman Institute (VKI) Lecture Series by the same title ?rst presented in 1985 and repeated with modi?cations every year since that time. The objective, then and now, was to present the subject of computational ?uid dynamics (CFD) to an audience unfamiliar with all but the most basic numerical techniques and to do so in such a way that the practical application of CFD would become clear to everyone. A second edition appeared in 1995 with updates to all the chapters and when that printing came to an end, the publisher requested that the editor and authors consider the preparation of a third edition. Happily, the authors received the request with enthusiasm. The third edition has the goal of presenting additional updates and clari?cations while preserving the introductory nature of the material. The book is divided into three parts. John Anderson lays out the subject in Part I by ?rst describing the governing equations of ?uid dynamics, concentrating on their mathematical properties which contain the keys to the choice of the numerical approach. Methods of discretizing the equations are discussed and transformation techniques and grids are presented. Two examples of numerical methods close out this part of the book: source and vortex panel methods and the explicit method. Part II is devoted to four self-contained chapters on more advanced material. Roger Grundmann treats the boundary layer equations and methods of solution.

Complex Wave Dynamics on Thin Films

Complex Wave Dynamics on Thin Films
  • Author : Hen-hong Chang,E.A. Demekhin
  • Publisher :Unknown
  • Release Date :2002-03-14
  • Total pages :412
  • ISBN : 0080529534
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Summary : Wave evolution on a falling film is a classical hydrodynamic instability whose rich wave dynamics have been carefully recorded in the last fifty years. Such waves are known to profoundly affect the mass and heat transfer of multi-phase industrial units. This book describes the collective effort of both authors and their students in constructing a comprehensive theory to describe the complex wave evolution from nearly harmonic waves at the inlet to complex spatio-temporal patterns involving solitary waves downstream. The mathematical theory represents a significant breakthrough from classical linear stability theories, which can only describe the inlet harmonic waves and also extends classical soliton theory for integrable systems to real solitrary wave dynamics with dissipation. One unique feature of falling-film solitary wave dynamics, which drives much of the spatio-temporal wave evolution, is the irreversible coalescence of such localized wave structures. It represents the first full description of a hydrodynamic instability from inception to developed chaos. This approach should prove useful for other complex hydrodynamic instabilities and would allow industrial engineers to better design their multi-phase apparati by exploiting the deciphered wave dynamics. This publication gives a comprehensive review of all experimental records and existing theories and significantly advances state of the art on the subject and are complimented by complex and attractive graphics from computational fluid mechanics.

High Dimensional Design Optimization of Wave Energy Converters with Computational Fluid Dynamics

High Dimensional Design Optimization of Wave Energy Converters with Computational Fluid Dynamics
  • Author : Christina Peuker
  • Publisher :Unknown
  • Release Date :2014
  • Total pages :80
  • ISBN : OCLC:1074801922
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Wave Dynamics and Radio Probing of the Ocean Surface

Wave Dynamics and Radio Probing of the Ocean Surface
  • Author : O. M. Phillips,Klaus Hasselmann
  • Publisher :Unknown
  • Release Date :2012-12-06
  • Total pages :704
  • ISBN : 9781468489804
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Summary : In 1960, Dr. George Deacon ofthe National Institute ofOceanography in England organized a meeting in Easton, Maryland that summarized the state of our understanding at that time of ocean wave statistics and dynamics. It was a pivotal occasion: spectral techniques for wave measurement were beginning to be used, wave-wave interactions hadjust been discovered, and simple models for the growth of waves by wind were being developed. The meeting laid the foundation for much work that was to follow, but one could hardly have imagined the extent to which new techniques of measurement, particularly by remote sensing, new methods of calculation and computation, and new theoretical and laboratory results would, in the following twenty years, build on this base. When Gaspar Valenzuela of the V. S. Naval Research Laboratory perceived that the time was right for a second such meeting, it was natural that Sir George Deacon would be invited to serve as honorary chairman for the meeting, and the entire waves community was delighted at his acceptance. The present volume contains reviewed and edited papers given at this second meeting, held this time in Miami, Florida, May 13-20, 1981, with the generous support of the Office of Naval Research, the National Aeronautics and Space Administration, and the National Oceanic and Atmospheric Administration.

Nonlinear Wave Dynamics

Nonlinear Wave Dynamics
  • Author : Patrick Lynett
  • Publisher :Unknown
  • Release Date :2009
  • Total pages :314
  • ISBN : 9789812709042
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Summary : In September 2006, research leaders in the field of coastal engineering, fluid mechanics, and wave theory met at Cornell University to celebrate the 60th birthday of Prof. Philip L-F Liu. This volume is a compilation of the research papers presented at the symposium, and includes both review and new research papers. Topics such as nonlinear wave theory, tsunamis, wave-structure interaction, turbulence, and modeling of complex sediment transport are discussed in this volume. All of the contributing authors are research collaborators of Prof. Liu, and include leaders in coastal engineering such as Maarten Dingemans, Hwung-Hweng Hwung, Nobu Kobayashi, Inigo Losada, Hocine Oumeraci, Costas Synolakis, and Harry Yeh.

Introduction to Computational Fluid Dynamics

Introduction to Computational Fluid Dynamics
  • Author : Pradip Niyogi
  • Publisher :Unknown
  • Release Date :2006
  • Total pages :600
  • ISBN : 8177587641
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Summary : Introduction to Computational Fluid Dynamics is a self-contained introduction to a new subject, arising through the amalgamation of classical fluid dynamics and numerical analysis supported by powerful computers. Written in the style of a text book for advanced level B.Tech, M.Tech and M.Sc. students of various science and engineering disciplines. It introduces the reader to finite-difference and finite-volume methods for studying and analyzing linear and non-linear problems of fluid flow governed by inviscid incompressible and compressible Euler equations as also incompressible and compressible viscous flows governed by boundary-layer and Navier-Stokes equations. Simple turbulence modelling has been presented.

Parallel Computational Fluid Dynamics 2005

Parallel Computational Fluid Dynamics 2005
  • Author : A. Deane,Gunther Brenner,David R. Emerson,James McDonough,Damien Tromeur-Dervout,N. Satofuka,A. Ecer,Jacques Periaux
  • Publisher :Unknown
  • Release Date :2006-09-06
  • Total pages :538
  • ISBN : 0080467938
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Summary : The proceedings from Parallel CFD 2005 covering all aspects of the theory and applications of parallel computational fluid dynamics from the traditional to the more contemporary issues. - Report on current research in the field in an area which is rapidly changing - Subject is important to all interested in solving large fluid dynamics problems - Interdisciplinary activity. Contributions include scientists with a variety of backgrounds

Application of Computational Fluid Dynamics to Wave Energy Conversion Research

Application of Computational Fluid Dynamics to Wave Energy Conversion Research
  • Author : Micheal D. O'Dowd
  • Publisher :Unknown
  • Release Date :1997
  • Total pages :278
  • ISBN : OCLC:263937954
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Theoretical Computational Dynamics

Theoretical Computational Dynamics
  • Author : Pai
  • Publisher :Unknown
  • Release Date :1997-03-01
  • Total pages :700
  • ISBN : 0442303106
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Summary : Emphasis of this text is on the basic assumptions and the formulation of the theory of compressible flow as well as on the methods of solving problems. Published by Science Press, Beijing, distributed by VNR in the US. Annotation copyrighted by Book News, Inc., Portland, OR

Wave Dynamics and Composite Mechanics for Microstructured Materials and Metamaterials

Wave Dynamics and Composite Mechanics for Microstructured Materials and Metamaterials
  • Author : Mezhlum A. Sumbatyan
  • Publisher :Unknown
  • Release Date :2017-03-28
  • Total pages :258
  • ISBN : 9789811037979
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Summary : This volume deals with topical problems concerning technology and design in construction of modern metamaterials. The authors construct the models of mechanical, electromechanical and acoustical behavior of the metamaterials, which are founded upon mechanisms existing on micro-level in interaction of elementary structures of the material. The empiric observations on the phenomenological level are used to test the created models. The book provides solutions, based on fundamental methods and models using the theory of wave propagation, nonlinear theories and composite mechanics for media with micro- and nanostructure. They include the models containing arrays of cracks, defects, with presence of micro- and nanosize piezoelectric elements and coupled physical-mechanical fields of different nature. The investigations show that the analytical, numerical and experimental methods permit evaluation of the qualitative and quantitative properties of the materials of this sort, with diagnosis of their effective characteristics, frequency intervals of effective energetic cutting and passing, as well as effective regimes of damage evaluation by the acoustic methods.

Computational Fluid Dynamics

Computational Fluid Dynamics
  • Author : Anonim
  • Publisher :Unknown
  • Release Date :1992
  • Total pages :219
  • ISBN : NASA:31769000472566
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Summary : Relates to the Computational Fluid Dynamics (CFD) and Combustion Modelling Group, which has three principles: conservation of mass, Newton's second law, and energy conservation. It validates and establishes the limits of approximations to equations. The wind tunnel is a means of simulating real flows. Improvement in the speed of computers and the memory size has led to the emergence of CFD which is important in engineering predictions.

Modulation of Spiral Wave Dynamics and Spontaneous Activity in a Fibroblast/myocyte Heterocellular Tissue - a Computational Study

Modulation of Spiral Wave Dynamics and Spontaneous Activity in a Fibroblast/myocyte Heterocellular Tissue - a Computational Study
  • Author : Ariel Greisas
  • Publisher :Unknown
  • Release Date :2012
  • Total pages :158
  • ISBN : OCLC:875075489
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Summary :