River Coastal And Estuarine Morphodynamics

Author: Gary Parker
Publisher: CRC Press
ISBN: 1439833893
Size: 36.77 MB
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The Proceedings of the 4th Symposium on River, Coastal and Estuarine Morphodynamics offers the latest research results concerning quantitative modelling of the interaction of water and sediment and the shapes this interaction makes. Morphodynamics is the study of the evolution of landscape and seascape features, from small scale to large, in response to the erosion and deposition of sediment. The erosion and deposition of sediment is in turn driven by an interaction between the mechanics of flow in a river, debris flow or turbidity current and the mechanics of sediment transport by the flow. Morphodynamics offers an avenue for the explanation of the evolution of consistent, self-adjusting morphologies such as drainage basins, the long profiles of rivers or the shape of shorelines, and the persistence of rhythmic features such as beach cusps, sediment waves and planform meandering. This year's conference proceedings differ from the proceedings of previous conferences in that both large-scale and submarine morphodynamics have been integrated into the scope of the volume. The papers are highly interdisciplinary, covering such diverse areasas geomorphology open-channel hydraulics, sediment transport dynamics, fluid mechanics, ecohydraulics, sedimentology and stratigraphy. The papers include a mix of basic and applied research.

River Coastal And Estuarine Morphodynamics Rcem 2007 Two Volume Set

Author: C. Marjolein Dohmen-Janssen
Publisher: CRC Press
ISBN: 9780415453639
Size: 25.47 MB
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Around the world, many people live, work and recreate in river, estuarine and coastal areas, systems which are also important wildlife habitats. It is imperative to understand the physics of such systems. A key element here is morphodynamics: the mutual interaction and adjustment of landform topography and fluid dynamics involving the motion of sediment. The numerous interacting processes involved, such as large- and small-scale hydrodynamics, sediment transport dynamics, growth and decay of bed perturbations or larger bed forms, biological processes and human interferences make morphodynamics a challenging scientific issue. These proceedings bring together contributions from some 200 scientists from more than 20 countries and present and discuss the latest scientific research developments on this topic. In addition, five key-note papers are included that introduce the specific themes of the conference: - Relations between scales and long-term morphodynamics - Biogeomorphology - Small-scale processes and grain sorting - Morphodynamic free behaviour - Human interferences in morphodynamics The book provides an excellent overview of the state of the art knowledge on River, Coastal and Estuarine Morphodynamics and will be of interest to academics, engineers, planners, national and local authorities and all those involved in managing river, estuarine and coastal habitats.

The Ecogeomorphology Of Tidal Marshes

Author: Sergio Fagherazzi
Publisher: Amer Geophysical Union
ISBN: 9780875902739
Size: 73.66 MB
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Located between sea and land, salt marshes are complex environments that provide critical ecosystem functions, such as production of organic material and nutrient cycling. This book examines the geomorphology of salt marshes with emphasis on the interaction between landscape and biota.

Hydrodynamics Around Cylindrical Structures

Author: B Mutlu Sumer
Publisher: World Scientific
ISBN: 981449805X
Size: 77.19 MB
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This book discusses the subject of wave/current flow around a cylinder, the forces induced on the cylinder by the flow, and the vibration pattern of slender structures in a marine environment. The primary aim of the book is to describe the flow pattern and the resulting load which develops when waves or current meet a cylinder. Attention is paid to the special case of a circular cylinder. The development in the forces is related to the various flow patterns and is discussed in detail. Regular as well as irregular waves are considered, and special cases like wall proximities (pipelines) are also investigated. The book is intended for MSc students with some experience in basic fluid mechanics and for PhD students. Contents:Flow Around a Cylinder in Steady CurrentForces on a Cylinder in Steady CurrentFlow Around a Cylinder in Oscillatory FlowsForces on a Cylinder in Regular WavesMathematical and Numerical Treatment of Flow Around a CylinderDiffraction Effect. Forces on Large BodiesForces on a Cylinder in Irregular WavesFlow-Induced Vibrations of a Free Cylinder in Steady CurrentsFlow-Induced Vibrations of a Free Cylinder in WavesVibrations of Marine PipelinesMathematical Modelling of Flow-Induced Vibrations. Readership: Civil and ocean engineers. keywords:Pipelines;Offshore Structures;Hydroelastic Vibrations;Flow-induced Vibrations;Forces on Offshore Structures;Flow Around Offshore Structures;Wave Loading;Vibrations;Waves;Steady Currents;Pipeline Stability;Diffraction;Irregular Waves;Oscillatory Flow;Mathematical Modelling;Coastal Structures;Marine Structure;Flow Loading;Vibration of Marine Pipelines “The figures are very good. Many of them are photographs and sketches of aspects of flow that are sometimes difficult to explain in words. The references are extensive, quoting many recent papers. The treatment of the subjects is up-to-date and particularly the chapters on numerical simulation and vibrations contain excellent synopses of new research, much of it by the authors themselves. The style is lucid and the text is well-organized. This book can be highly recommended to anyone who deals with cylindrical structures.” Professor J W Kamphuis Coastal Engineering

Fluid Mechanics Of Environmental Interfaces

Author: Carlo Gualtieri
Publisher: Taylor & Francis
ISBN: 1134064225
Size: 41.89 MB
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An environmental interface is defined as a surface between two abiotic or biotic systems, in relative motion and exchanging mass, heat and momentum through biophysical and/or chemical processes. These processes fluctuate temporally and spatially. The book first treats exchange processes occurring at the interfaces between atmosphere and the surface of the sea, and atmosphere and land surface. These exchanges include the effect of vegetation, transport of dust and dispersion of passive substances within the atmosphere. Processes at the environmental interfaces of freshwater, such as gas-transfer at free-surfaces of rivers, advective diffusion of air bubbles in turbulent water flows and boundary-layers phenomena in vegetated open channels are also described. Finally, the book deals with the phenomena that affect transport of material to and from the surface of an organism, including molecular and turbulent diffusion. The relevant issues related to mass transfer to and from benthic plants and animals are further considered in detail. The book will be of interest to graduate students and researchers in environmental sciences, civil engineering and environmental engineering, (geo)physics and applied mathematics.

Tidal Hydrodynamics

Author: Bruce B. Parker
Publisher: John Wiley & Sons
ISBN: 9780471514985
Size: 61.67 MB
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Consists of refereed papers by the world's leading authorities on tidal hydrodynamics. Its forty-four papers, including nine review papers, cover all aspects of the subject and present, for the first time in one place, state of the art treatments of recent advances including tidal detection from satellite altimetry, global tide modeling, nonlinear tidal interactions and internal tidal phenomena.

River Restoration

Author: Stephen Darby
Publisher: John Wiley & Sons
ISBN: 0470867078
Size: 78.24 MB
Format: PDF
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River restoration projects are designed to recreate functional characteristics within a context of physical stability. They tend to focus on the development and application of geomorphic principles for river restoration design. Due to different models obtaining different results on the same problem, incomplete or absent data, and climatic/social/cultural changes, the designers and managers of such projects frequently face high levels of uncertainty. This book will provide a systematic overview of the issues involved in minimizing and coping with uncertainty in river restoration projects. A series of thematic sections will be used to define the various sources of uncertainty in restoration projects and how these show at different points in the life cycle (design, construction and post-construction phases) of restoration projects. The structure of the book will offer a rational theoretical analysis of the problem while providing practical guidance in managing the different sources of uncertainty. A wide range of case studies will be included from Europe, North America and Australasia

Liquefaction Around Marine Structures

Author: B Mutlu Sumer
Publisher: World Scientific
ISBN: 9814603732
Size: 38.93 MB
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This book, whose primary aim is to describe liquefaction processes and their implications for marine structures such as pipelines, sea outfalls, quay walls and caisson breakwaters, discusses the subject of soil liqeufaction in the marine environment. In addition, the physics of liquefaction (including examples illustrating the catastrophic consequences of soil liquefaction with regard to marine structures) are described, and the mathematical modelling of liqeufaction is treated in detail. Also, carefully selected numerical examples support the discussion of assessing liquefaction potential, and benchmark cases such as buried gas pipelines and their floatation, caisson breakwaters, cover stones and their interaction with liquefied soil along with counter measures are investigated. Contents:Introduction and Physics of LiquefactionBiot Equations and Their SolutionsResidual LiquefactionMomentary LiquefactionFloatation of Buried PipelinesSinking of Pipelines and Marine ObjectsLiquefaction Under Standing WavesLiquefaction at Gravity StructuresStability of Rock Berms in Liquefied SoilImpact of Seismic-Induced LiquefactionCounter Measures Readership: Professionals and researchers in the area of coastal, ocean and marine civil engineering; graduate and post graduate students. Key Features:Physics of liquefactionMathematical modellingAssessment of liquefaction potential, supported by numerical examplesBenchmark cases such as buried gas pipelines, caisson structures, etc.Keywords:Soil Liquefaction;Marine Environment;Mathematical Modelling;Pipelines;Caisson BreakwatersReviews: “This is a well-written and comprehensive book describing the physics and processes of seabed liquefaction around marine structures. Overall, this book is highly recommended for all professionals and researchers interested in seabed soil liquefaction and the stability of marine structures, and is indeed suitable as a textbook for graduate/postgraduate students in this field.” J. Ocean Eng. Mar. Energy

Alluvial Sedimentation Special Publication 17 Of The Ias

Author: M. Marzo
Publisher: John Wiley & Sons
ISBN: 1444304003
Size: 79.54 MB
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Most of the thirty-four papers contained in this Special Publication arise from the Fourth International Conference on Fluvial Sedimentology held in Spain in 1989. Sections deal with various aspects of sediment transport and hydraulics in flume experiments and modern rivers, the analysis of alluvial facies, geomorphic and structural controls on alluvial sedimentation, alluvial stratigraphy and basin analysis, and finally the exploration and exploitation of ores. A professional reference to the most recent research in fluvial sedimentology. An international expert authorship.