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Turbulent Coherent Structures Secondary Currents And Sediment Ridges

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Turbulent Coherent Structures Secondary Currents And Sediment Ridges

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Author : Scherer, Markus Maximilian
language : en
Publisher: KIT Scientific Publishing
Release Date : 2024-06-19

Turbulent Coherent Structures Secondary Currents And Sediment Ridges written by Scherer, Markus Maximilian and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-06-19 with categories.

The origin of secondary currents and subaqueous sediment patterns in natural rivers is analysed from first principles. For this purpose, simulations of sediment transport in canonical turbulent open channel flows are performed using a numerical technique that resolves all relevant flow scales and the dynamics of the individual sand grains. The high-fidelity datasets reveal the fundamental importance of individual coherent structures for the development of sediment patterns and secondary flows.

Turbulent Coherent Structures Secondary Currents And Sediment Ridges

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Author : Markus Scherer
language : en
Publisher:
Release Date : 2022*

Turbulent Coherent Structures Secondary Currents And Sediment Ridges written by Markus Scherer and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022* with categories.

A Hydrodynamical Perspective On The Turbulent Transport Of Bacteria In Rivers

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Author : Krayer, Michael Werner Tobias
language : en
Publisher: KIT Scientific Publishing
Release Date : 2023-09-11

A Hydrodynamical Perspective On The Turbulent Transport Of Bacteria In Rivers written by Krayer, Michael Werner Tobias and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-09-11 with categories.

The transport of bacteria in turbulent river-like environments is addressed, where bacterial populations are frequently encountered attached to solids. This transport mode is investigated by studying the transient settling of heavy particles in turbulent channel flows featuring sediment beds. A numerical method is used to fully resolve turbulence and finite-size particles, which enables the assessment of the complex interplay between flow structures, suspended solids and river sediment.

Sediment Transport Dynamics

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Author : Weiming Wu
language : en
Publisher: CRC Press
Release Date : 2023-11-21

Sediment Transport Dynamics written by Weiming Wu and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-11-21 with Science categories.

This book focuses on the fundamentals of sediment transport in surface waters. It covers sediment properties, open channel flows, sediment particle settling, incipient motion, bed forms, bed load, suspended load, total load, cohesive sediments, water-sediment two-phase flows, hyperconcentrated flows, debris flows, wave-induced sediment transport, turbidity currents, and physical modeling. Besides the primary context of river sedimentation, this book extensively covers sediment transport under coexisting waves and currents in coasts and estuaries, hyperconcentrated and debris flows in rivers, as well as turbidity currents in lakes, reservoirs, channels, and the ocean. It includes a chapter on the water-sediment two-phase flow theory, which is considered the basis of many sediment transport models. It introduces some special topics have that emerged in recent years, such as the transport of mixed cohesive and noncohesive sediments, biofilm-coated sediments, and infiltrated sand within gravel and cobble beds. The text merges classical and new knowledge of sediment transport from various sources in English and non-English literature and includes important contributions made by many scientists and engineers from all over the world. It balances the breadth, depth, fundamental importance, practical applicability, and future advancement of the covered knowledge, and can be used as a text and reference book. The chapters are arranged in a useful sequence for teaching purposes. Certain homework problems are prepared, which also highlight the important topics for instructors to select. Solutions to homework problems are available from the author by request.

Turbulent Flows

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Author : G. Biswas
language : en
Publisher: CRC Press
Release Date : 2002

Turbulent Flows written by G. Biswas and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with Technology & Engineering categories.

This book allows readers to tackle the challenges of turbulent flow problems with confidence. It covers the fundamentals of turbulence, various modeling approaches, and experimental studies. The fundamentals section includes isotropic turbulence and anistropic turbulence, turbulent flow dynamics, free shear layers, turbulent boundary layers and plumes. The modeling section focuses on topics such as eddy viscosity models, standard K-E Models, Direct Numerical Stimulation, Large Eddy Simulation, and their applications. The measurement of turbulent fluctuations experiments in isothermal and stratified turbulent flows are explored in the experimental methods section. Special topics include modeling of near wall turbulent flows, compressible turbulent flows, and more.

Gravel Bed Rivers

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Author : Michael Church
language : en
Publisher: John Wiley & Sons
Release Date : 2012-02-10

Gravel Bed Rivers written by Michael Church and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-02-10 with Nature categories.

Gravel-Bed Rivers: Processes, Tools, Environments presents a definitive review of current knowledge of gravel-bed rivers, derived from the 7th International Gravel-bed Rivers Workshop, the 5-yearly meeting of the world’s leading authorities in the field. Each chapter in the book has been specifically commissioned to represent areas in which recent progress has been made in the field. The topics covered also represent a coherent progression through the principal areas of the subject (hydraulics; sediment transport; river morphology; tools and methods; applications of science). Definitive review of the current knowledge of gravel-bed rivers Coverage of both fundamental and applied topics Edited by leading academics with contributions from key researchers Thoroughly edited for quality and consistency to provide coherent and logical progression through the principal areas of the subject.

Sedimentology And Sedimentary Basins

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Author : Mike R. Leeder
language : en
Publisher: John Wiley & Sons
Release Date : 2009-04-01

Sedimentology And Sedimentary Basins written by Mike R. Leeder and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-04-01 with Science categories.

Sedimentology is a core discipline of earth and environmental sciences. It enquires the origins, transport and deposition of mineral sediment on the Earth's surface. The subject is a link between positive effects arising from the building of relief by tectonics and the negative action of denudation in drainage catchments and tectonic subsidence in sedimentary basins. The author addresses the principles of the subject, emphasising the advantages of a general science approach and the importance of understanding modern processes. Sedimentology and Sedimentary Basins is not an encyclopaedia, but attempts to stimulate interdisciplinary thought across the whole subject area and related disciplines. The book has been designed to meet the needs of earth and environmental science undergraduates.

Handbook Of Environmental Fluid Dynamics Volume Two

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Author : Harindra Joseph Fernando
language : en
Publisher: CRC Press
Release Date : 2012-12-12

Handbook Of Environmental Fluid Dynamics Volume Two written by Harindra Joseph Fernando and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-12 with Science categories.

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 Two: Systems, Pollution, Modeling, and Measurements explores the interactions between engineered structures and anthropogenic activities that affect natural flows, with particular emphasis on environmental pollution. The book covers the numerical methodologies that underpin research, predictive modeling, and cyber-infrastructure developments. It also addresses practical aspects of laboratory experiments and field observations that validate quantitative predictions and help identify new phenomena and processes. 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 environmental motions and how they affect and are influenced by anthropogenic activities. See also Handbook of Environmental Fluid Dynamics, Two-Volume Set and Volume One: Overview and Fundamentals.

Handbook Of Environmental Fluid Dynamics Two Volume Set

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Author : Harindra Joseph Fernando
language : en
Publisher: CRC Press
Release Date : 2012-12-11

Handbook Of Environmental Fluid Dynamics Two Volume Set written by Harindra Joseph Fernando and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-11 with Science categories.

Turbulence In Open Channel Flows

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Author : Hiroji Nakagawa
language : en
Publisher: Routledge
Release Date : 2017-10-02

Turbulence In Open Channel Flows written by Hiroji Nakagawa and has been published by Routledge this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-10-02 with Technology & Engineering categories.

A review of open channel turbulence, focusing especially on certain features stemming from the presence of the free surface and the bed of a river. Part one presents the statistical theory of turbulence; Part two addresses the coherent structures in open-channel flows and boundary layers.

Turbulent Coherent Structures Secondary Currents And Sediment Ridges

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