Download or read book Numerical and analytical study of internal waves in stratified fluids written by Ren Liu and published by . This book was released on 1989 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Numerical Simulations of Internal Waves in Stratified Fluids written by Andy K. O. Law and published by . This book was released on 1999 with total page 195 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Stratified Flows written by Roger Grimshaw and published by Springer Science & Business Media. This book was released on 2006-04-11 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt: The dynamics of flows in density-stratified fluids has been and remains now an important topic for scientific enquiry. Such flows arise in many contexts, ranging from industrial settings to the oceanic and atmospheric environments. It is the latter topic which is the focus of this book. Both the ocean and atmosphere are characterised by the basic vertical density stratification, and this feature can affect the dynamics on all scales ranging from the micro-scale to the planetary scale. The aim of this book is to provide a “state-of-the-art” account of stratified flows as they are relevant to the ocean and atmosphere with a primary focus on meso-scale phenomena; that is, on phenomena whose time and space scales are such that the density stratification is a dominant effect, so that frictional and diffusive effects on the one hand and the effects of the earth’s rotation on the other hand can be regarded as of less importance. This in turn leads to an emphasis on internal waves.
Download or read book Analytical and Numerical Methods for Wave Propagation in Fluid Media written by K. Murawski and published by World Scientific. This book was released on 2002 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book surveys analytical and numerical techniques appropriate to the description of fluid motion with an emphasis on the most widely used techniques exhibiting the best performance.Analytical and numerical solutions to hyperbolic systems of wave equations are the primary focus of the book. In addition, many interesting wave phenomena in fluids are considered using examples such as acoustic waves, the emission of air pollutants, magnetohydrodynamic waves in the solar corona, solar wind interaction with the planet venus, and ion-acoustic solitons.
Download or read book Internal Gravity Waves written by Bruce R. Sutherland and published by Cambridge University Press. This book was released on 2010-09-02 with total page 395 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study of internal gravity waves provides many challenges: they move along interfaces as well as in fully three-dimensional space, at relatively fast temporal and small spatial scales, making them difficult to observe and resolve in weather and climate models. Solving the equations describing their evolution poses various mathematical challenges associated with singular boundary value problems and large amplitude dynamics. This book provides the first comprehensive treatment of the theory for small and large amplitude internal gravity waves. Over 120 schematics, numerical simulations and laboratory images illustrate the theory and mathematical techniques, and 130 exercises enable the reader to apply their understanding of the theory. This is an invaluable single resource for academic researchers and graduate students studying the motion of waves within the atmosphere and ocean, and also mathematicians, physicists and engineers interested in the properties of propagating, growing and breaking waves.
Download or read book A Numerical Study of Upstream Blocking and Internal Waves in a Density Stratified Fluid written by Chang-Yang Li and published by . This book was released on 1978 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Some Aspects of Wave Motion in Stably Stratified Fluids written by Russ Erik Davis and published by . This book was released on 1967 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Instability in Geophysical Flows written by William D. Smyth and published by Cambridge University Press. This book was released on 2019-04-25 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: Instabilities are present in all natural fluids from rivers to atmospheres. This book considers the physical processes that generate instability. Part I describes the normal mode instabilities most important in geophysical applications, including convection, shear instability and baroclinic instability. Classical analytical approaches are covered, while also emphasising numerical methods, mechanisms such as internal wave resonance, and simple `rules of thumb' that permit assessment of instability quickly and intuitively. Part II introduces the cutting edge: nonmodal instabilities, the relationship between instability and turbulence, self-organised criticality, and advanced numerical techniques. Featuring numerous exercises and projects, the book is ideal for advanced students and researchers wishing to understand flow instability and apply it to their own research. It can be used to teach courses in oceanography, atmospheric science, coastal engineering, applied mathematics and environmental science. Exercise solutions and MATLAB® examples are provided online. Also available as Open Access on Cambridge Core.
Download or read book Analytical And Numerical Methods For Wave Propagation In Fluid Media written by Krzysztof Murawski and published by World Scientific. This book was released on 2002-11-06 with total page 255 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book surveys analytical and numerical techniques appropriate to the description of fluid motion with an emphasis on the most widely used techniques exhibiting the best performance.Analytical and numerical solutions to hyperbolic systems of wave equations are the primary focus of the book. In addition, many interesting wave phenomena in fluids are considered using examples such as acoustic waves, the emission of air pollutants, magnetohydrodynamic waves in the solar corona, solar wind interaction with the planet venus, and ion-acoustic solitons.
Download or read book Solitary Waves in Fluids written by R. Grimshaw and published by WIT Press. This book was released on 2007 with total page 209 pages. Available in PDF, EPUB and Kindle. Book excerpt: Edited by R.H.J. Grimshaw, this book covers the topic of solitary waves in fluids.
Download or read book Waves in Flows written by Tomáš Bodnár and published by Springer Nature. This book was released on 2021-04-29 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume offers an overview of the area of waves in fluids and the role they play in the mathematical analysis and numerical simulation of fluid flows. Based on lectures given at the summer school “Waves in Flows”, held in Prague from August 27-31, 2018, chapters are written by renowned experts in their respective fields. Featuring an accessible and flexible presentation, readers will be motivated to broaden their perspectives on the interconnectedness of mathematics and physics. A wide range of topics are presented, working from mathematical modelling to environmental, biomedical, and industrial applications. Specific topics covered include: Equatorial wave–current interactions Water–wave problems Gravity wave propagation Flow–acoustic interactions Waves in Flows will appeal to graduate students and researchers in both mathematics and physics. Because of the applications presented, it will also be of interest to engineers working on environmental and industrial issues.
Download or read book Laboratory and Analytical Modeling of Internal Waves in Uniform and Non uniform Stratifications written by Manikandan Sankaranarayanan Mathur and published by . This book was released on 2011 with total page 147 pages. Available in PDF, EPUB and Kindle. Book excerpt: Internal gravity waves are propagating disturbances in a stably stratified fluid. Ubiquitous in geophysical systems, they have significant impact on both fundamental processes and engineering applications. In the ocean, for example, internal waves are a significant means of tidal dissipation, eventually affecting abyssal mixing and the global energy budget. They are also of importance in engineering fields such as deep-water oil drilling, submarine technology and acoustic communications. In the atmosphere, internal waves affect momentum and energy transport processes. While the generation of internal waves in both the ocean and the atmosphere is beginning to be well understood, what is now of great interest is the life of internal waves after their generation. More specifically, how are they dissipated, and what fundamental phenomena occur along the way ? To investigate these issues, this thesis presents the results of internal wave studies using a combination of experimental and analytical modeling, with a focus on internal wave scattering in the ocean. In the first part of the thesis, the effectiveness of a novel wave generator, which comprises a series of vertically stacked plates that oscillate horizontally, in generating unidirectional plane waves/wave beams and distinct vertical modes is discussed and demonstrated in experiments. The experimental results show excellent agreement with corresponding numerical simulations, which model the wave generator as a vertical boundary on which desired velocity fields are enforced. Finally, it is shown that the Fourier transform of the spatial structure of the wave generator is a useful predictive tool for the emitted wave field. This novel technique of wave generation is then used in the experiments discussed in the remainder of the thesis. The second part of the thesis considers the viscous propagation of internal wave beams in nonuniform stratifications, and uses laboratory observations of wave beam ducting to explain the apparent vanishing of an internal wave beam at the Keana ridge, Hawaii. Furthermore, an analogy between internal wave transmission in nonuniform stratifications and light transmission in optical interferometry is established. Constructing an internal wave interferometer in the lab, selective transmission of wavelengths by nonuniform stratifications is demonstrated. In the final part of the thesis, an investigation of internal wave scattering by ocean-floor topography is carried out. An existing Green function method for internal tide generation is advanced to account for arbitrary two-dimensional topography in arbitrary nonuniform stratifications. The analytical model is then utilized to study the scattering of a mode-I internal tide by idealized topographic shapes in uniform and nonuniform stratifications. The thesis concludes with a case study of the scattering of mode-1 internal tide at the Line Islands Ridge at Hawaii, the location of an upcoming NSF field study, the EXperiment on Internal Tide Scattering (EXITS).
Download or read book GENERATION OF INTERNAL WAVES IN STRATIFIED FLUIDS written by Charles C. S. Song and published by . This book was released on 1973 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt: Internal waves in exponentially stratified fluids confined between two parallel boundaries have been studied analytically and experimentally with both a fixed and a free upper surface. In the analytical model, waves were generated by vortex-like or source-like oscillatory disturbances. A modified image method was developed according to the principle of superposition using Hurley's elementary solutions for unbounded fluid. A basic image system which satisfies the wall boundary condition and is free of singularities in the flow field was found for every elementary vortex or source located anywhere in the field. An experiment was carried out in a channel filled with salt water of exponential density stratification. A rigid flat plate wave generator and a flexible rubber diaphragm anywhere in the field. An experiment was carried out in a channel filled with salt water of exponential density stratification. A rigid flat plate wave generator and a flexible rubber diaphragm wave generator located at mid-depth, both oscillating in a vertical direction, were used. Excellent agreement was obtained between the predicted and the measured wave length. The predicted wave shape and the measured wave shape were also in good agreement. Less complete agreement was obtained for the case of wave amplitude, however. (Modified author abstract).
Download or read book Internal Gravity Waves written by Bruce Sutherland and published by Cambridge University Press. This book was released on 2010-09-02 with total page 395 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first comprehensive treatment of the theory for small and large amplitude internal gravity waves, with illustrative examples and exercises.
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 892 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Experimental and Numerical Study of Wave Motion and Upstream Influence in a Stratified Fluid written by David Albert Hurdis and published by . This book was released on 1974 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: A system consisting of two superimposed layers of liquid of different densities, with a thin transition layer at the interface, provides a good laboratory model of an ocean thermocline or of an atmospheric inversion layer. This research was to gain knowledge about the propagation of disturbances within these two geophysical systems. The technique used was to observe the propagation of internal waves and of upstream influence within the density-gradient region between the two layers of liquid. The disturbances created by the motion of a vertical flat plate, which was moved longitudinally through this region, were examined both experimentally and numerically. An upstream influence, which resulted from a balance of inertial and gravitational forces, was observed, and it was possible to predict the behavior of this influence with the numerical model. The prediction included a description of the propagation of the upstream influence to steadily increasing distances from the flat plate and the shapes and magnitudes of the velocity profiles.
Download or read book Marine Research written by and published by . This book was released on 1973 with total page 1200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
