River Coastal And Estuarine Morphodynamics

Author: Gary Parker
Publisher: CRC Press
ISBN: 1439833893
Size: 47.25 MB
Format: PDF, Kindle
View: 2408
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: 72.57 MB
Format: PDF, ePub
View: 7036
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.

Hydrodynamics Around Cylindrical Structures

Author: B Mutlu Sumer
Publisher: World Scientific
ISBN: 981449805X
Size: 28.15 MB
Format: PDF, Docs
View: 3649
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

The Ecogeomorphology Of Tidal Marshes

Author: Sergio Fagherazzi
Publisher: Amer Geophysical Union
ISBN: 9780875902739
Size: 74.28 MB
Format: PDF, Docs
View: 2268
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.

Fluid Mechanics Of Environmental Interfaces

Author: Carlo Gualtieri
Publisher: Taylor & Francis
ISBN: 1134064225
Size: 13.16 MB
Format: PDF, ePub, Docs
View: 6067
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.

Experimental Hydraulics Methods Instrumentation Data Processing And Management Two Volume Set

Author: Marian Muste
ISBN: 9781351657945
Size: 12.55 MB
Format: PDF, Docs
View: 1747
"This two-volume book is a comprehensive guide to designing, conducting and interpreting experiments in a broad range of topics associated with hydraulic engineering. It is the first substantial effort in hydraulic engineering to assemble in one place descriptions of all the components of experimentation along with a concise outline of essential theory to highlight the intrinsic connection between analytical and experimental research and illustrate the need for their complementary use. Providing end-to-end guidance to support experimentalists is long overdue, as most of the information can only be found in scientific papers or specialized monographs on laboratory and fieldwork practice. The book was prepared for college faculty, researchers, practitioners, and students involved in hydraulics experiments. Written by a team of more than 45 authors well-experienced in hydraulics experimentation, the book takes into account experiments performed under a range of conditions, including well-equipped and -staffed laboratories, and laboratories lacking aspects of advanced instrumentation and expertise. The book could serve as a textbook on hydraulics experiments. Its style is intentionally concise and makes frequent use of convenient summaries, tables and figures to present information. The writers provide specific guidance on methods and instruments currently used in hydraulics experiments, and emphasizes new and emerging measurement technologies and analysis methods. Extensive references enable interested readers to further explore details on each topic. Although the book focuses primarily on laboratory experiments, including hydraulic modelling, it also applies to fieldwork of varying complexity and accessibility."--Provided by publisher.

Liquefaction Around Marine Structures

Author: B Mutlu Sumer
Publisher: World Scientific
ISBN: 9814603732
Size: 34.11 MB
Format: PDF, Docs
View: 5087
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

Scour And Erosion

Author: John Harris
Publisher: CRC Press
ISBN: 1315349418
Size: 73.22 MB
Format: PDF, Docs
View: 223
Scour and Erosion includes four keynote lectures from world leading researchers cutting across the themes of scour and erosion, together with 132 peer-reviewed papers from 34 countries, covering the principal themes of: - internal erosion - sediment transport - grain scale to continuum scale - advanced numerical modelling of scour and erosion - terrestrial scour and erosion- river and estuarine erosion including scour around structures, and - management of scour/erosion and sediment, including hazard management and sedimentation in dams and reservoirs. Scour and Erosion is ideal for researchers and industry working at the forefront of scour and erosion, and has applications in both the freshwater and marine environments. The 8th International Conference on Scour and Erosion (ICSE 2016, Oxford, UK, 12-15 September 2016) was organized by HR Wallingford under the guidance of the Technical Committee 213 for Scour and Erosion of the International Society of Soil Mechanics and Geotechnical Engineering (ISSMGE). This biennial conference draws together leading academics, scientists and engineers engaged in scour and erosion research to present and exchange their latest scientific findings. Scour and Erosion, together with the eight previous proceedings dating from 2002, present a solid collection of technical and scientific developments in scour and erosion research which have been established over the last 14 years.

Sedimentation Engineering

Author: Marcelo H. GarcÁa
Publisher: ASCE Publications
ISBN: 0784471282
Size: 23.43 MB
Format: PDF, ePub, Docs
View: 4681
Prepared by the ASCE Task Committee to Expand and Update Manual 54 of the Sedimentation Committee of the Environmental and Water Resources Institute of ASCE Sedimentation Engineering: Processes, Measurements, Modeling, and Practice presents extensive advances in methods of investigation, measurement, and analysis in the specialized field of sedimentation engineering. A supplement to the classic Sedimentation Engineering (Manual 54), this new volume not only documents the evolution of the field over a 50-year period, but also reports on the state of the practice. This manual addresses new topics in physical processes, measurements, modeling, and practice, mainly in the context of rivers and inland water bodies. With contributions from internationally recognized experts in various fields, MOP 110 will benefit hydrologists, geomorphologists, sedimentoloigists, land-use planners, and soil conservation specialists, as well as environmental, hydraulic, and agricultural engineers.