Modeling A Gravity Current In A Shallow Fluid System

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Modeling a Gravity Current in a Shallow Fluid System

Author : Paula Sharon Kulis
Publisher :
ISBN 13 :
Total Pages : 266 pages
Book Rating : 4.:/5 (774 download)

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Book Synopsis Modeling a Gravity Current in a Shallow Fluid System by : Paula Sharon Kulis

Download or read book Modeling a Gravity Current in a Shallow Fluid System written by Paula Sharon Kulis and published by . This book was released on 2011 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt: Corpus Christi Bay in Texas is a wind driven system, and under most conditions winds over the bay mix the water column vertically. However, seasonal, episodic, bottom-water hypoxia has been observed in the bay in conjunction with vertical salinity stratification. This stratification may be caused by dense gravity currents entering the bay. Understanding and modeling the mechanisms that result in stratification in Corpus Christi Bay may help predict hypoxia, and for this reason that is the focus of this dissertation. An evaluation of existing gravity current modeling techniques shows that most currently available models are designed to capture either phenomena local to a gravity current, such as gravity current entrainment and spreading, or larger scale phenomena such as wind mixing and large-scale circulation, but not both. Because gravity current mixing in Corpus Christi Bay is enhanced by wind-induced turbulence, both local gravity current physics and wind mixing effects are critical elements governing gravity current propagation in Corpus Christi Bay. As existing models do not represent gravity current entrainment and wind mixing together, this dissertation develops a coupled model system that accounts explicitly for turbulent wind mixing of a bottom-boundary layer, in addition to representing other local features of dense gravity current propagation such as entrainment and spreading. The coupled model system consists of a 2D depth-averaged hydrodynamic model that calculates gravity current mixing and spreading, coupled with a 3D hydrodynamic model whose domain includes a lighter ambient fluid surrounding the gravity current. The coupled models have flexible boundary conditions that allow fluid exchange to represent mixing from both gravity current entrainment and wind mixing. The coupled model system's development, verification and application in Corpus Christi Bay advances understanding of gravity current mechanisms, and contributes to our scientific understanding of hypoxia in Corpus Christi Bay. This modeling technique has the flexibility to be applied to other density-stratified systems that are shallow and potentially wind-driven, such as shallow desalination brine disposal sites.

Gravity Currents And Intrusions: Analysis And Prediction

Author : Marius Ungarish
Publisher : World Scientific
ISBN 13 : 9811225966
Total Pages : 815 pages
Book Rating : 4.8/5 (112 download)

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Book Synopsis Gravity Currents And Intrusions: Analysis And Prediction by : Marius Ungarish

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.

Shallow-water Models for Gravity Currents

Author :
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (654 download)

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Book Synopsis Shallow-water Models for Gravity Currents by :

Download or read book Shallow-water Models for Gravity Currents written by and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Initial-boundary Value Problems and the Navier-Stokes Equations

Author : Heinz-Otto Kreiss
Publisher : SIAM
ISBN 13 : 0898719135
Total Pages : 408 pages
Book Rating : 4.8/5 (987 download)

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Book Synopsis Initial-boundary Value Problems and the Navier-Stokes Equations by : Heinz-Otto Kreiss

Download or read book Initial-boundary Value Problems and the Navier-Stokes Equations written by Heinz-Otto Kreiss and published by SIAM. This book was released on 1989-01-01 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: Annotation This book provides an introduction to the vast subject of initial and initial-boundary value problems for PDEs, with an emphasis on applications to parabolic and hyperbolic systems. The Navier-Stokes equations for compressible and incompressible flows are taken as an example to illustrate the results. Researchers and graduate students in applied mathematics and engineering will find Initial-Boundary Value Problems and the Navier-Stokes Equations invaluable. The subjects addressed in the book, such as the well-posedness of initial-boundary value problems, are of frequent interest when PDEs are used in modeling or when they are solved numerically. The reader will learn what well-posedness or ill-posedness means and how it can be demonstrated for concrete problems. There are many new results, in particular on the Navier-Stokes equations. The direct approach to the subject still gives a valuable introduction to an important area of applied analysis.

Particulate Gravity Currents

Author : W. D. McCaffrey
Publisher : John Wiley & Sons
ISBN 13 : 1444304283
Total Pages : 320 pages
Book Rating : 4.4/5 (443 download)

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Book Synopsis Particulate Gravity Currents by : W. D. McCaffrey

Download or read book Particulate Gravity Currents written by W. D. McCaffrey and published by John Wiley & Sons. This book was released on 2009-03-05 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume arises from the conference Sediment Transport andDeposition by Particulate Gravity Currents held in the UK in 1998.The field of particulate gravity currents ranges from turbiditycurrents in the oceans, lakes and reservoirs to pyroclastic densitycurrents and avalanches, debris flows and lahars, grainflows,powder snow avalanches, effluent dispersal and ancient gravitycurrent deposits. Although the sub-division of particulate gravity currents intodiscrete sub-categories (such as grain flows, turbidity currents ordebris flows) provides a convenient descriptive shorthand, itundermines the sense of process continuum needed to describe manynatural flows. The structure of this volume reflects an integrativeaim, with papers grouped by research approach. The first section ofthe book contains six papers on theoretical and numerical modellingof a range of flow types. The following four papers are focusedupon combined theoretical and experimental modelling approaches.The next section contains four papers describing experimentalmodelling and the final section includes five papers detailingfield-based studies. The volume stands as a testament to the broad range of researchcarried out on particulate gravity currents, and hints at theenhanced rate of progress that is likely to be achieved throughfurther integrated studies. If you are a member of the International Association ofSedimentologists, for purchasing details, please see:http://www.iasnet.org/publications/details.asp?code=SP31

Gravity Currents

Author : John E. Simpson
Publisher :
ISBN 13 :
Total Pages : 254 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Gravity Currents by : John E. Simpson

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.

Modeling Shallow Water Flows Using the Discontinuous Galerkin Method

Author : Abdul A. Khan
Publisher : CRC Press
ISBN 13 : 1482226014
Total Pages : 218 pages
Book Rating : 4.4/5 (822 download)

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Book Synopsis Modeling Shallow Water Flows Using the Discontinuous Galerkin Method by : Abdul A. Khan

Download or read book Modeling Shallow Water Flows Using the Discontinuous Galerkin Method written by Abdul A. Khan and published by CRC Press. This book was released on 2014-03-03 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: Replacing the Traditional Physical Model Approach Computational models offer promise in improving the modeling of shallow water flows. As new techniques are considered, the process continues to change and evolve. Modeling Shallow Water Flows Using the Discontinuous Galerkin Method examines a technique that focuses on hyperbolic conservation laws and includes one-dimensional and two-dimensional shallow water flows and pollutant transports. Combines the Advantages of Finite Volume and Finite Element Methods This book explores the discontinuous Galerkin (DG) method, also known as the discontinuous finite element method, in depth. It introduces the DG method and its application to shallow water flows, as well as background information for implementing and applying this method for natural rivers. It considers dam-break problems, shock wave problems, and flows in different regimes (subcritical, supercritical, and transcritical). Readily Adaptable to the Real World While the DG method has been widely used in the fields of science and engineering, its use for hydraulics has so far been limited to simple cases. The book compares numerical results with laboratory experiments and field data, and includes a set of tests that can be used for a wide range of applications. Provides step-by-step implementation details Presents the different forms in which the shallow water flow equations can be written Places emphasis on the details and modifications required to apply the scheme to real-world flow problems This text enables readers to readily understand and develop an efficient computer simulation model that can be used to model flow, contaminant transport, and other aspects in rivers and coastal environments. It is an ideal resource for practicing environmental engineers and researchers in the area of computational hydraulics and fluid dynamics, and graduate students in computational hydraulics.

Twenty-Second Symposium on Naval Hydrodynamics

Author : National Research Council
Publisher : National Academies Press
ISBN 13 : 0309065372
Total Pages : 1039 pages
Book Rating : 4.3/5 (9 download)

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Book Synopsis Twenty-Second Symposium on Naval Hydrodynamics by : National Research Council

Download or read book Twenty-Second Symposium on Naval Hydrodynamics written by National Research Council and published by National Academies Press. This book was released on 2000-03-02 with total page 1039 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Twenty-Second Symposium on Naval Hydrodynamics was held in Washington, D.C., from August 9-14, 1998. It coincided with the 100th anniversary of the David Taylor Model Basin. This international symposium was organized jointly by the Office of Naval Research (Mechanics and Energy Conversion S&T Division), the National Research Council (Naval Studies Board), and the Naval Surface Warfare Center, Carderock Division (David Taylor Model Basin). This biennial symposium promotes the technical exchange of naval research developments of common interest to all the countries of the world. The forum encourages both formal and informal discussion of the presented papers, and the occasion provides an opportunity for direct communication between international peers.

Geophysical Fluid Dynamics

Author : Vladimir Zeitlin
Publisher : Oxford University Press
ISBN 13 : 0198804334
Total Pages : 509 pages
Book Rating : 4.1/5 (988 download)

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Book Synopsis Geophysical Fluid Dynamics by : Vladimir Zeitlin

Download or read book Geophysical Fluid Dynamics written by Vladimir Zeitlin and published by Oxford University Press. This book was released on 2018 with total page 509 pages. Available in PDF, EPUB and Kindle. Book excerpt: For the dynamics of large and medium scale motions in the oceans and the atmosphere, a simplified rotating shallow water model, obtained by vertical averaging, is used throughout the book in order to explain the fundamentals, and to give in-depth treatment of important dynamical processes.

Atmospheric and Oceanic Fluid Dynamics

Author : Geoffrey K. Vallis
Publisher : Cambridge University Press
ISBN 13 : 1139459961
Total Pages : 772 pages
Book Rating : 4.1/5 (394 download)

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Book Synopsis Atmospheric and Oceanic Fluid Dynamics by : Geoffrey K. Vallis

Download or read book Atmospheric and Oceanic Fluid Dynamics written by Geoffrey K. Vallis and published by Cambridge University Press. This book was released on 2006-11-06 with total page 772 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fluid dynamics is fundamental to our understanding of the atmosphere and oceans. Although many of the same principles of fluid dynamics apply to both the atmosphere and oceans, textbooks tend to concentrate on the atmosphere, the ocean, or the theory of geophysical fluid dynamics (GFD). This textbook provides a comprehensive unified treatment of atmospheric and oceanic fluid dynamics. The book introduces the fundamentals of geophysical fluid dynamics, including rotation and stratification, vorticity and potential vorticity, and scaling and approximations. It discusses baroclinic and barotropic instabilities, wave-mean flow interactions and turbulence, and the general circulation of the atmosphere and ocean. Student problems and exercises are included at the end of each chapter. Atmospheric and Oceanic Fluid Dynamics: Fundamentals and Large-Scale Circulation will be an invaluable graduate textbook on advanced courses in GFD, meteorology, atmospheric science and oceanography, and an excellent review volume for researchers. Additional resources are available at www.cambridge.org/9780521849692.

Gravity Currents

Author : John E. Simpson
Publisher :
ISBN 13 :
Total Pages : 254 pages
Book Rating : 4.:/5 (318 download)

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Book Synopsis Gravity Currents by : John E. Simpson

Buoyancy-Driven Flows

Author : Eric P. Chassignet
Publisher : Cambridge University Press
ISBN 13 : 1107079993
Total Pages : 445 pages
Book Rating : 4.1/5 (7 download)

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Book Synopsis Buoyancy-Driven Flows by : Eric P. Chassignet

Download or read book Buoyancy-Driven Flows written by Eric P. Chassignet and published by Cambridge University Press. This book was released on 2012-03-05 with total page 445 pages. Available in PDF, EPUB and Kindle. Book excerpt: Buoyancy is one of the main forces driving flows on our planet, especially in the oceans and atmosphere. These flows range from buoyant coastal currents to dense overflows in the ocean, and from avalanches to volcanic pyroclastic flows on the Earth's surface. This book brings together contributions by leading world scientists to summarize our present theoretical, observational, experimental and modeling understanding of buoyancy-driven flows. Buoyancy-driven currents play a key role in the global ocean circulation and in climate variability through their impact on deep-water formation. Buoyancy-driven currents are also primarily responsible for the redistribution of fresh water throughout the world's oceans. This book is an invaluable resource for advanced students and researchers in oceanography, geophysical fluid dynamics, atmospheric science and the wider Earth sciences who need a state-of-the-art reference on buoyancy-driven flows.

Nonlinear Dynamics of Rotating Shallow Water: Methods and Advances

Author :
Publisher : Elsevier
ISBN 13 : 008048946X
Total Pages : 401 pages
Book Rating : 4.0/5 (84 download)

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Book Synopsis Nonlinear Dynamics of Rotating Shallow Water: Methods and Advances by :

Download or read book Nonlinear Dynamics of Rotating Shallow Water: Methods and Advances written by and published by Elsevier. This book was released on 2007-04-03 with total page 401 pages. Available in PDF, EPUB and Kindle. Book excerpt: The rotating shallow water (RSW) model is of wide use as a conceptual tool in geophysical fluid dynamics (GFD), because, in spite of its simplicity, it contains all essential ingredients of atmosphere and ocean dynamics at the synoptic scale, especially in its two- (or multi-) layer version. The book describes recent advances in understanding (in the framework of RSW and related models) of some fundamental GFD problems, such as existence of the slow manifold, dynamical splitting of fast (inertia-gravity waves) and slow (vortices, Rossby waves) motions, nonlinear geostrophic adjustment and wave emission, the role of essentially nonlinear wave phenomena. The specificity of the book is that analytical, numerical, and experimental approaches are presented together and complement each other. Special attention is paid on explaining the methodology, e.g. multiple time-scale asymptotic expansions, averaging and removal of resonances, in what concerns theory, high-resolution finite-volume schemes, in what concerns numerical simulations, and turntable experiments with stratified fluids, in what concerns laboratory simulations. A general introduction into GFD is given at the beginning to introduce the problematics for non-specialists. At the same time, recent new results on nonlinear geostrophic adjustment, nonlinear waves, and equatorial dynamics, including some exact results on the existence of the slow manifold, wave breaking, and nonlinear wave solutions are presented for the first time in a systematic manner.· Incorporates analytical, numerical and experimental approaches in the geophysical fluid dynamics context· Combination of essentials in GFD, of the description of analytical, numerical and experimental methods (tutorial part), and new results obtained by these methods (original part)· Provides the link between GFD and mechanics (averaging method, the method of normal forms); GFD and nonlinear physics (shocks, solitons, modons, anomalous transport, periodic nonlinear waves)

Introduction to Geophysical Fluid Dynamics

Author : Benoit Cushman-Roisin
Publisher : Academic Press
ISBN 13 : 0080916783
Total Pages : 850 pages
Book Rating : 4.0/5 (89 download)

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Book Synopsis Introduction to Geophysical Fluid Dynamics by : Benoit Cushman-Roisin

Download or read book Introduction to Geophysical Fluid Dynamics written by Benoit Cushman-Roisin and published by Academic Press. This book was released on 2011-08-26 with total page 850 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduction to Geophysical Fluid Dynamics provides an introductory-level exploration of geophysical fluid dynamics (GFD), the principles governing air and water flows on large terrestrial scales. Physical principles are illustrated with the aid of the simplest existing models, and the computer methods are shown in juxtaposition with the equations to which they apply. It explores contemporary topics of climate dynamics and equatorial dynamics, including the Greenhouse Effect, global warming, and the El Nino Southern Oscillation. - Combines both physical and numerical aspects of geophysical fluid dynamics into a single affordable volume - Explores contemporary topics such as the Greenhouse Effect, global warming and the El Nino Southern Oscillation - Biographical and historical notes at the ends of chapters trace the intellectual development of the field - Recipient of the 2010 Wernaers Prize, awarded each year by the National Fund for Scientific Research of Belgium (FNR-FNRS)

Advances In Fluid Modeling And Turbulence Measurements, Proceedings Of The 8th International Symposium On Flow Modeling And Turbulence Measurements (Fmtm 2001)

Download Advances In Fluid Modeling And Turbulence Measurements, Proceedings Of The 8th International Symposium On Flow Modeling And Turbulence Measurements (Fmtm 2001) PDF Online Free

Author : Nobu Mori
Publisher : World Scientific
ISBN 13 : 9814488720
Total Pages : 888 pages
Book Rating : 4.8/5 (144 download)

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Book Synopsis Advances In Fluid Modeling And Turbulence Measurements, Proceedings Of The 8th International Symposium On Flow Modeling And Turbulence Measurements (Fmtm 2001) by : Nobu Mori

Download or read book Advances In Fluid Modeling And Turbulence Measurements, Proceedings Of The 8th International Symposium On Flow Modeling And Turbulence Measurements (Fmtm 2001) written by Nobu Mori and published by World Scientific. This book was released on 2002-07-19 with total page 888 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is an essential reference for engineers and scientists working in the field of turbulence. It covers a variety of applications, such as: turbulence measurements; mathematical and numerical modeling of turbulence; thermal hydraulics; applications for civil, mechanical and nuclear engineering; environmental fluid mechanics; river and open channel flows; coastal problems; ground water.

Direct and Large-Eddy Simulation X

Author : Dimokratis G.E. Grigoriadis
Publisher : Springer
ISBN 13 : 3319632124
Total Pages : 523 pages
Book Rating : 4.3/5 (196 download)

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Book Synopsis Direct and Large-Eddy Simulation X by : Dimokratis G.E. Grigoriadis

Download or read book Direct and Large-Eddy Simulation X written by Dimokratis G.E. Grigoriadis and published by Springer. This book was released on 2017-10-06 with total page 523 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book addresses nearly all aspects of the state of the art in LES & DNS of turbulent flows, ranging from flows in biological systems and the environment to external aerodynamics, domestic and centralized energy production, combustion, propulsion as well as applications of industrial interest. Following the advances in increased computational power and efficiency, several contributions are devoted to LES & DNS of challenging applications, mainly in the area of turbomachinery, including flame modeling, combustion processes and aeroacoustics. The book includes work presented at the tenth Workshop on 'Direct and Large-Eddy Simulation' (DLES-10), which was hosted in Cyprus by the University of Cyprus, from May 27 to 29, 2015. The goal of the workshop was to establish a state of the art in DNS, LES and related techniques for the computation and modeling of turbulent and transitional flows. The book is of interest to scientists and engineers, both in the early stages of their career and at a more senior level.

Ocean Modelling for Beginners

Author : Jochen Kämpf
Publisher : Springer Science & Business Media
ISBN 13 : 3642008208
Total Pages : 185 pages
Book Rating : 4.6/5 (42 download)

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Book Synopsis Ocean Modelling for Beginners by : Jochen Kämpf

Download or read book Ocean Modelling for Beginners written by Jochen Kämpf and published by Springer Science & Business Media. This book was released on 2009-10-08 with total page 185 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces computer-based modeling of oceanic processes. It contains over twenty practical exercises, using freely available open-Source software, and covers a wide range of topics, from long surface waves to general wind-driven circulation.