Mechanics of Coastal Sediment Transport

Mechanics of Coastal Sediment Transport PDF

Author: J?rgen Freds?e

Publisher: World Scientific

Published: 1992

Total Pages: 406

ISBN-13: 9789810208400

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This book treats the subject of sediment transport in the marine environment, covering transport of non-cohesive sediment by waves and current in- and outside the surf zone. It can be read independently, but a background in hydraulics and basic wave mechanics is required. It is intended for M.Sc. and Ph.D. students. The primary aim of the book is to describe the physical processes of sediment transport and how to represent them in mathematical models. It does not present a large number of different formulae for the sediment transport rates under various conditions. The book can be divided in two main parts; in the first, the relevant hydrodynamic theory is described; in the second, sediment transport and morphological development are treated. The hydrodynamic part contains a review of elementary theory for water waves, chapters on the turbulent wave boundary layer and the turbulent interaction between waves and currents, and finally, surf zone hydrodynamics and wave driven currents. The part on sediment transport introduces the basic concepts (critical bed shear stress, bed load, suspended load and sheet layer, near-bed concentration, effect of sloping bed); it treats suspended sediment in waves and current and in the surf zone, and current and wave-generated bed forms. Finally, the modelling of cross-shore and long-shore sediment transport is described together with the development, of coastal profiles and coastlines.

Coastal Bottom Boundary Layers And Sediment Transport

Coastal Bottom Boundary Layers And Sediment Transport PDF

Author: Peter Nielsen

Publisher: World Scientific Publishing Company

Published: 1992-07-21

Total Pages: 340

ISBN-13: 9813103582

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This book is intended as a useful handbook for professionals and researchers in the areas of Physical Oceanography, Marine Geology, Coastal Geomorphology and Coastal Engineering and as a text for graduate students in these fields. With its emphasis on boundary layer flow and basic sediment transport modelling, it is meant to help fill the gap between general hydrodynamic texts and descriptive texts on marine and coastal sedimentary processes. The book commences with a review of coastal bottom boundary layer flows including the boundary layer interaction between waves and steady currents. The concept of eddy viscosity for these flows is discussed in depth because of its relation to sediment diffusivity. The quasi-steady processes of sediment transport over flat beds are discussed. Small scale coastal bedforms and the corresponding hydraulic roughness are described. The motion of suspended sand particles is studied in detail with emphasis on the possible suspension maintaining mechanisms in coastal flows. Sediment pickup functions are provided for unsteady flows. A new combined convection-diffusion model is provided for suspended sediment distributions. Different methods of sediment transport model building are presented together with some classical models.

An Introduction to Hydraulics of Fine Sediment Transport

An Introduction to Hydraulics of Fine Sediment Transport PDF

Author: Ashish J Mehta

Publisher: World Scientific Publishing Company

Published: 2013-09-30

Total Pages: 1060

ISBN-13: 9814449504

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This book presents observations on the phenomena of fine sediment transport and their explanations under process-related divisions such as flocculation, erosion, and deposition. The text is a compilation of the author's lecture notes from nearly four decades of teaching and guiding graduate students in civil and coastal engineering. Illustrations of fine sediment transport processes and their complexities given in the book are taken from field and laboratory-based observations by the author and his students, as well as numerous investigators. The wide-ranging composition of particles (of inorganic and organic matter), their universal presence and their complex interactions with hydraulic forces make this branch of science a difficult one to deal with in a single treatise. It is therefore essential to study fine sediment transport as an independent subject rather than cover it in no more than a single chapter as many texts on coarse sediment transport have done. Even though the entire coverage is “introductory”, the twelve chapters collectively include more material than what can be reasonably dealt with in a one semester, three-credit course. The book includes an extensive description of the components of fine-grained — especially cohesive — sediment transport. It covers the development of the subject in scientific and engineering applications mainly from the 1950s to its present state. Solved examples and chapter-end exercises are also included. This text is aimed at senior civil engineering undergraduates and graduate students who, in the normal course of their study, seldom come across the subject of fine sediment transport in their curricula. Interested students should have a basic understanding of the mechanics of fluid flow and open channel hydraulics.

Coastal Processes

Coastal Processes PDF

Author: Tomoya Shibayama

Publisher: World Scientific

Published: 2009

Total Pages: 228

ISBN-13: 9812813950

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Features concepts in coastal engineering and their application to coastal processes and disaster prevention works. This title describes basic concepts of coastal engineering, dealing mainly with wave-induced physical problems. It consists of the author's results of 30 years' scientific research on the progress of coastal sediment transport study.

The Mechanics Of Scour In The Marine Environment

The Mechanics Of Scour In The Marine Environment PDF

Author: Jorgen Fredsoe

Publisher: World Scientific Publishing Company

Published: 2002-04-22

Total Pages: 552

ISBN-13: 981310595X

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This book treats the subject of local scour around different kinds of marine structures, exposed to waves and/or currents. The first, major part of the book is devoted to marine pipelines, describing in detail all kinds of scour scenarios, and also making recommendations for scour protection. Other kinds of structures considered are single piles (slender or large), groups of piles, complex subsea structures, breakwaters, and seawalls. The scour due to ship propellers is also described. The book deals mainly with the scour in noncohesive sediment but, whenever possible, available literature on the scour in finer sediment has been incorporated. In addition, a chapter on the impact of wave-induced liquefaction is included.The authors' aim is to describe in detail the hydrodynamic processes causing the erosion. With a hydrodynamic understanding, it is easier for the consulting engineer to predict scour in those many cases where physical model tests are not available.

The Urban Ocean

The Urban Ocean PDF

Author: Alan F. Blumberg

Publisher: Cambridge University Press

Published: 2018-11

Total Pages: 249

ISBN-13: 1107191998

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Describes the physics of the coastal ocean, for advanced students, researchers, urban planners, and environmental engineers.

Encyclopedia of Coastal Science

Encyclopedia of Coastal Science PDF

Author: M. Schwartz

Publisher: Springer Science & Business Media

Published: 2006-11-08

Total Pages: 1243

ISBN-13: 1402038801

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This new Encyclopedia of Coastal Science stands as the latest authoritative source in the field of coastal studies, making it the standard reference work for specialists and the interested lay person. Unique in its interdisciplinary approach. This Encyclopedia features contributions by 245 well-known international specialists in their respective fields and is abundantly illustrated with line-drawings and photographs. Not only does this volume offer an extensive number of entries, it also includes various appendices, an illustrated glossary of coastal morphology and extensive bibliographic listings.

Sediment Transport in Coastal Waters

Sediment Transport in Coastal Waters PDF

Author: Sylvain Ouillon

Publisher: MDPI

Published: 2019-04-11

Total Pages: 284

ISBN-13: 3038978442

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The interface of 440,000 km long coastline in the world is subject to global change, with an increasing human pressure (land use, buildings, sand mining, dredging) and increasing population. Improving our knowledge on involved mechanisms and sediment transport processes, monitoring the evolution of sedimentary stocks and anticipating changes in littoral and coastal zones is essential for this purpose. The special issue of Water on “Sediment transport in coastal waters” gathers thirteen papers which introduce the current revolution in the scientific research related to coastal and littoral hydrosedimentary dynamics, and reflect the diversity of concerns on which research in coastal sediment transport is based, and current trends — topics and preferred methods — to address them.

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