Download or read book Gravity Currents And Intrusions Analysis And Prediction written by Marius Ungarish and published by World Scientific. This book was released on 2020-12-08 with total page 815 pages. Available in PDF, EPUB and Kindle. Book excerpt: The flow of gravity currents and intrusions is a subject of active research and engineering application. Currently, there are no formal teaching courses for this topic. Materials and information available in the market are scattered and dated. Researchers and engineers face difficulties in acquiring the 'state-of-the-art' knowledge. The book bridges this gap between the need and supply of the relevant insight and know-how.Written by a renowned author who is a recognized authority in the field, this unique compendium assembles the relevant knowledge into a systematic and unified framework. The presentation is gradual from the elementary to the frontier, and accessible to readers with only a basic background in fluid mechanics and applied mathematics. This will facilitate the systematic acquirement and application of available knowledge to both practical problems and further research.This must-have volume is a useful monograph — that can also serve as a textbook in advanced courses — for researchers, students, engineers and applied mathematicians in the fields of civil engineering, hydraulic engineering, mechanical engineering, ocean engineering and environmental engineering.
Download or read book Handbook of Environmental Fluid Dynamics Volume One written by Harindra Joseph Fernando and published by CRC Press. This book was released on 2012-12-12 with total page 638 pages. Available in PDF, EPUB and Kindle. Book excerpt: With major implications for applied physics, engineering, and the natural and social sciences, the rapidly growing area of environmental fluid dynamics focuses on the interactions of human activities, environment, and fluid motion. A landmark for the field, the two-volume Handbook of Environmental Fluid Dynamics presents the basic principles, fundamental flow processes, modeling techniques, and measurement methods used in the study of environmental motions. It also offers critical discussions of environmental sustainability related to engineering. The handbook features 81 chapters written by 135 renowned researchers from around the world. Covering environmental, policy, biological, and chemical aspects, it tackles important cross-disciplinary topics such as sustainability, ecology, pollution, micrometeorology, and limnology. Volume One: Overview and Fundamentals provides a comprehensive overview of the basic principles. It starts with general topics that emphasize the relevance of environmental fluid dynamics research in society, public policy, infrastructure, quality of life, security, and the law. It then discusses established and emerging focus areas. The volume also examines the sub-mesoscale flow processes and phenomena that form the building blocks of environmental motions, with emphasis on turbulent motions and their role in heat, momentum, and species transport. As communities face existential challenges posed by climate change, rapid urbanization, and scarcity of water and energy, the study of environmental fluid dynamics becomes increasingly relevant. This volume is a valuable resource for students, researchers, and policymakers working to better understand the fundamentals of environmental motions and how they affect and are influenced by anthropogenic activities. See also Handbook of Environmental Fluid Dynamics, Two-Volume Set and Volume Two: Systems, Pollution, Modeling, and Measurements.
Download or read book Gravity Currents and Their Analysis by Direct Numerical Simulation written by Carlos J. Jiménez-Härtel and published by . This book was released on 1999 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook of Environmental Fluid Dynamics Two Volume Set written by Harindra Joseph Fernando and published by CRC Press. This book was released on 2012-12-11 with total page 1197 pages. Available in PDF, EPUB and Kindle. Book excerpt: With major implications for applied physics, engineering, and the natural and social sciences, the rapidly growing area of environmental fluid dynamics focuses on the interactions of human activities, environment, and fluid motion. A landmark for the field, this two-volume handbook presents the basic principles, fundamental flow processes, modeling techniques, and measurement methods used in the field, along with critical discussions of environmental sustainability related to engineering aspects. The first volume provides a comprehensive overview of the fundamentals, and the second volume explores the interactions between engineered structures and natural flows.
Download or read book The Propagation of Gravity Currents Along Continental Shelves written by Doron Nof and published by . This book was released on 1988 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: An analytical method for computing the speed at which the noise of a light (rotating) intrusion advances along a continental shelf is proposed. The nonlinear model includes two active layers; the intrusion itself, which occupies the entire shelf (and extends beyond the shelf break), and the heavy fluid situated both ahead of the intrusion and in the deep ocean. The section of the intrusion which extends beyond the shelf break overlies an infinitely deep ocean. Friction is neglected but the motions near the intrusion's leading edge are not constrained to be quasi-geostrophic nor are they constrained to be hydrostatic. Solutions for steadily propagating currents are constructed analytically by taking into account the flow-forces behind and ahead of the nose, and considering the conservation of energy and potential vorticity. This procedure leads to a set of algebraic equations, which are solved analytically using a perturbation scheme in epsilon the ration between the internal deformation radius and the shelf width. It is found that all the heavy fluid ahead of the intrusion is trapped and cannot be removed from the shelf. Namely, it is pushed ahead of the intrusion's leading edge as the gravity current is advancing behind. Unlike intrusions without a shelf, which can never reach a truly steady propagation rate (in an infinitely deep ocean), the intrusion in question propagates steadily when epsilon approaches 0. Under such conditions, the propagation rate is given by sq. rt. (2 g'D), where g' is the reduced gravity and D is the intrusion depth at the shelf break (note that D> or = H, where H is the (uniform) shelf depth, so that at the shelf break the intrusion is deeper than the shelf. Reprints. (JHD).
Download or read book Gravity Currents written by John E. Simpson and published by . This book was released on 1987 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt: This explanation of the nature of gravity currents (Bouyancy-driven flows in fluids) and their manifestations in the atmosphere, the oceans and the earth sciences, fills a serious gap in the literature. It will also benefit a great many workers in other scientific disciplines, who will be able to apply the principles of gravity currents to their own specialist subject. Much of the work has not previously been published, and the publishers know of no other book with a similar range of information. The author's own work in the development of a variety of laboratory experiments designed to offer an understanding of the physical processes, is made very clear to the reader, illustrating a range of phenomena which are important in areas as diverse as aircraft safety, the distribution of airborne pests, and airborne pollution. The study of oceans ranges from the Gulf Stream to river fronts in lakes and fjords, where the formation of a front is of biological importance. In a section on avalanche flows, avalanches of snow, rock, and volcanic eruptions, are also shown to be gravity currents of vital significance. Factors influencing the behaviour of gravity currents are reviewed. The topics are dealt with in numerous laboratory experiments, and only simple mathematics is included. A final chapter reviews the growing subject of numerical models of gravity currents.
Download or read book On Two layer Analytical Models for Gravity Currents and Internal Bores written by Zachary Haifleigh Borden and published by . This book was released on 2013 with total page 183 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is accomplished by combining the streamwise and vertical momentum equations to obtain a vorticity relation that no longer involves pressure. Hence, this vorticity equation, in combination with the conservation of mass, is sufficient for evaluating the bore velocity. The energy loss across the bore can then be predicted by the streamwise energy equation and compared to the assumptions underlying earlier models. The flux of vorticity across an internal bore predicted by this new model is seen to be in close agreement with direct numerical simulation results. Any discrepancies with experimentally measured bore velocities are shown to be due to the effects of downstream mixing.
Download or read book Density Current Propagation Over Horizontal Boundaries written by Diana L. Paez-Rivadeneira and published by . This book was released on 1997 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Analysis of Gravity Prediction Methods for Continental Areas written by Luman E. Wilcox and published by . This book was released on 1974 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mean gravity anomaly values which represent 1 degree x 1 degree surface areas can be predicted on the continents by geophysical gravity correlation methods whether or nor measured gravity data exists within those 1 degree x 1 degree areas. These methods take into consideration the earth's structure, composition, and response to changes in surficial mass distribution by means of observed or computed correlations between gravity and other geophysical parameters within geologic/tectonic provinces. Linear basic prediction functions, used to describe and predict the relationships between gravity and elevation, are shown to be a natural consequence of the properties of gravity reduction procedures and the observed behavior of gravity anomalies within structurally homogeneous regions. (Modified author abstract).
Download or read book Applied Mechanics Reviews written by and published by . This book was released on 1982 with total page 916 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Studies on Gravitational Spreading Currents written by Jing-Chang Chen and published by . This book was released on 1980 with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Volcanic Eruptions and Their Repose Unrest Precursors and Timing written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2017-07-24 with total page 135 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volcanic eruptions are common, with more than 50 volcanic eruptions in the United States alone in the past 31 years. These eruptions can have devastating economic and social consequences, even at great distances from the volcano. Fortunately many eruptions are preceded by unrest that can be detected using ground, airborne, and spaceborne instruments. Data from these instruments, combined with basic understanding of how volcanoes work, form the basis for forecasting eruptionsâ€"where, when, how big, how long, and the consequences. Accurate forecasts of the likelihood and magnitude of an eruption in a specified timeframe are rooted in a scientific understanding of the processes that govern the storage, ascent, and eruption of magma. Yet our understanding of volcanic systems is incomplete and biased by the limited number of volcanoes and eruption styles observed with advanced instrumentation. Volcanic Eruptions and Their Repose, Unrest, Precursors, and Timing identifies key science questions, research and observation priorities, and approaches for building a volcano science community capable of tackling them. This report presents goals for making major advances in volcano science.
Download or read book Axisymmetric gravity currents in a porous medium written by S. Lyle and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings written by and published by . This book was released on 2001 with total page 788 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Gravity Currents Propagating Upslope in Uniform and Two layer Stratified Ambients written by Larissa J. Marleau and published by . This book was released on 2014 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bottom propagating gravity currents resulting from full- and partial-depth lock-release experiments are investigated as they propagate up a rising slope in uniform and two-layer stratified ambients. In the case of uniform ambients, the gravity current front decelerates in a nearly uniform manner along the slope at a rate that agrees with theoretical predictions. The shape of the gravity current as it decelerates over relatively steep slopes is found to be self-similar with a nearly linear decrease of the head height between the start of the slope and up to 80\% of the distance to the nose. Some deviation from self-similar behaviour is found in cases with small slopes because of the comparatively large volume of fluid in the gravity current tail that flows downslope while the front continues to advance upwards. In the case of two-layer ambients, the initial gravity current front speed is found to be consistent with a theory adapted from \cite{shin_dalziel_linden2004}. The subsequent evolution depends on the gravity current speed relative to the speed of the interfacial disturbance it creates. The deceleration of supercritical gravity currents, which travel faster than the interfacial disturbance, is gradual and agrees well with the relationship developed for upslope gravity currents in uniform density ambients and modified for a two-layer ambient. In most subcritical cases the gravity current suddenly comes to rest as a consequence of interactions with the interfacial disturbance. The disturbance amplitude, speed, and width are found to be nearly constant during its evolution. In cases for which the ambient interface intersected the tank bottom, the amplitude, speed, and width are nearly constant up to the point where the lower layer shallowed and the disturbance transformed into an upslope propagating gravity current.
Download or read book Gravity Currents on Slopes written by Andrew Neil Ross and published by . This book was released on 2000 with total page 191 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Gravity Currents and Internal Bores written by Carmela Grandinetti and published by . This book was released on 1992 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:
