Download or read book Boussinesq Modeling of Wave Propagation and Runup Over Fringing Coral Reefs Model Evaluation Report written by Zeki Demirbilek and published by . This book was released on 2007 with total page 101 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Design Of Coastal Structures And Sea Defenses written by Young C Kim and published by World Scientific. This book was released on 2014-09-25 with total page 287 pages. Available in PDF, EPUB and Kindle. Book excerpt: Coastal structures are an important component in any coastal protection scheme. They directly control wave and storm surge action or to stabilize a beach which provides protection to the coast.This book provides the most up-to-date technical advances on the design and construction of coastal structures and sea defenses.Written by renowned practicing coastal engineers, this edited volume focuses on the latest technology applied in planning, design and construction, effective engineering methodology, unique projects and problems, design and construction challenges, and other lessons learned.Many books have been written about the theoretical treatment of coastal and ocean structures. Much less has been written about the practical practice aspect of ocean structures and sea defenses. This comprehensive book fills the gap. It is an essential source of reference for professionals and researchers in the areas of coastal, ocean, civil, and geotechnical engineering.
Download or read book Wave Transformation Over Reefs written by Zeki Demirbilek and published by . This book was released on 2009 with total page 195 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Investigation and Modeling of Nonlinear Wave Propagation Over Fringing Reefs written by Tracy Martz and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Wave breaking is found to occur both on the reef slope and edge. A considerable amount of energy remains at the peak frequency after breaking at the reef edge. However, the spectrum measured on the reef flat is dominated by low-frequency oscillations. After breaking, the waves reform as bores and propagate across the reef flat toward the beach. The low-frequency energy continues to grow as the waves propagate shoreward.
Download or read book Laboratory Study of Wind Effect on Runup Over Fringing Reefs Report 1 Data Report written by and published by . This book was released on 2007 with total page 83 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report describes experimental data obtained from a wind-wave flume study conducted August-September 2006 at the University of Michigan in Ann Arbor, MI. The study objectives were two-fold: to quantify wind effects on wave runup on fringing reefs of the Pacific Island of Guam and to obtain detailed wave data along a complex reef system consisting of steep slopes and shallow areas for validating wave breaking, dissipation, wave setup and runup capabilities of a Boussinesq-type wave model. An idealized 1:64 model of a two dimensional fringing reef, representative of the reef systems along the southeast coast of island of Guam, was built in the flume. The reef cross-sectional profile consisted of a beach, a flat and wide reef section, and a reef face with composite slope. The reef profile was built from a relatively smooth and impervious plastic material (polyvinyl chloride). The wind generator and wavemaker mechanisms were located at opposite ends of the test flume. The reef cross-sectional profile consisted of a beach, a flat and wide reef section, and a reef face with composite slope. The reef profile was built from a relatively smooth and impervious plastic material (polyvinyl chloride). The wind generator and wavemaker mechanisms were located at opposite ends of the test flume. Eleven probes (gauges) collected time series surface elevation and wind speed data. Tests were performed without wind (waves-only), with wind-only, and with both waves and wind together. Data obtained in this study will be used in the calibration of numerical models to estimate wave setup and runup affecting the flooding of Pacific islands. This data report describes the experiment and data. Subsequent reports are expected to address the analyses and use of data and numerical modeling studies. General features of the experiment are summarized in the report, including description of test facility, instrumentation, test conditions, and preliminary results.
Download or read book Modeling of Nonlinear Wave Propagation Over Fringing Reefs written by A. Sheremet and published by . This book was released on 2011 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Maritime Technology and Engineering 5 Volume 2 written by Carlos Guedes Soares and published by CRC Press. This book was released on 2021-07-08 with total page 846 pages. Available in PDF, EPUB and Kindle. Book excerpt: This set of two volumes comprises the collection of the papers presented at the 5th International Conference on Maritime Technology and Engineering (MARTECH 2020) that was held in Lisbon, Portugal, from 16 to 19 November 2020. The Conference has evolved from the series of biennial national conferences in Portugal, which have become an international event, and which reflect the internationalization of the maritime sector and its activities. MARTECH 2020 is the fifth of this new series of biennial conferences. The set comprises 180 contributions that were reviewed by an International Scientific Committee. Volume 2 is dedicated to ship performance and hydrodynamics, including CFD, maneuvering, seakeeping, moorings and resistance. In addition, it includes sections on ship machinery, renewable energy, fishing and aquaculture, coastal structures, and waves and currents.
Download or read book Flooding on Coral Reef lined Coasts Current State of Knowledge and Future Challenges written by Curt D. Storlazzi and published by Frontiers Media SA. This book was released on 2021-02-11 with total page 127 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wave and Setup Dynamics on Fringing Reefs written by Mark Buckley and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The steep slopes and large bottom roughness of coral reefs contrast with the milder slopes and smoother bottoms of sandy beaches where most historical research on surf zone processes has been targeted. These physical characteristics of reefs may thus explicitly violate the underlying assumptions of existing surf zone models when applied to reef systems. Given the importance of surf zone dynamics to a range of physical dynamics (e.g., coastal inundation and sediment transport) and biological processes (e.g., larval and nutrient transport and dispersal), there is a need to rigorously assess existing theory and, where necessary, develop new theory appropriate for reef environments. This thesis was directed at addressing these open questions through three chapters. In chapter two, the suitability of commonly used numerical models in steepslope reef environments was assessed using existing laboratory observations on a smooth reef profile. In chapter three, the dynamics of wave setup were evaluated with higher spatial-resolution data collected in a 1:36 scale wave flume with a smooth bottom and characteristic fringing reef profile. Finally in chapter four, the effect of large bottom roughness on wave setup was determined by comparing the results from the smooth laboratory flume experiments with the same experiments conducted over scaled roughness elements. In chapter two, we find that existing nearshore numerical models are capable of reproducing observations of waves and wave setup across a laboratory reef profile with reasonable accuracy, despite the steep (1:11) reef slope explicitly violating the mildslope and other fundamental assumptions that underpin the numerical models. However, a partial explanation for the good agreement with observations reported in chapter two, and elsewhere, may be owing to the tuning of empirical coefficients and hence not be physically meaningful. Indeed, in many cases tuning model parameters to best reproduce the observed wave height decay resulted in a reduction in the accuracy of wave setup predictions, which indicates a fundamental breakdown in the dynamical relationship between the predicted radiation stress gradients and the observed wave setup. However, as detailed surf zone measurements were not available, it was not possible to further evaluate the details of wave and setup dynamics. The general lack of detailed surf zone measurements on reefs was rectified by conducting the high-resolution laboratory experiments detailed in chapters three and four. In these chapters, we utilized new datasets to evaluate the time-averaged crossshore momentum equation from observations of water levels and velocities, rather than the traditional approach of using empirical models to predict wave transformation through the surf zone. For runs without roughness (chapter three), the momentum equation collapsed to a balance between pressure and radiation stress gradients, and revealed a significant underestimation of wave setup when radiation stress gradients were approximated from observations using linear wave theory alone. Including the radiation stress contribution from wave rollers was found to reduce the under prediction of setup from 21% to only 3% on average. Using an array of roughness elements affixed to the same reef profile as in chapter three, the influence of the large bottom roughness typical of coral reefs was evaluated in chapter four. Despite the presence of roughness modifying the setup profiles near the reef crest and changing the partitioning between wave and bottom stress forces, roughness did not affect the net setup on the reef flat. These results are in contrast to the often reported large increases in setup predicted by the presence of roughness in numerical models. The consistency between the setup on the smooth and rough laboratory profiles is accounted for by an 18% (on average) reduction in setup generated by radiation stress gradients in the rough versus smooth cases coupled with a 16% (on average) increase in setup generation by bottom roughness resistance forces in the rough cases. These results highlight the need for precise predictions of the wave field and the time-averaged bottom stress to accurately predict the setup response on steep-slope reefs. This thesis contributes to the understanding and prediction of the complex wave and setup dynamics on steep slopes and in areas of large bottom roughness.
Download or read book Boussinesq Modeling of Wave Transformation Breaking and Runup written by Andrew B. Kennedy and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Boussinesq Model for Wave Transformation in Coastal Regions with Application to a Submerged Coral Reef written by Claus Skotner and published by . This book was released on 1996 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Boussinesq Model for Wave Transformation in Coastal Regions with Applications to a Submerged Coral Reef written by Claus Skotner and published by . This book was released on 1996 with total page 255 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Boussinesq Models and Applications to Nearshore Wave Propagation Surfzone Processes and Wave induced Currents written by James Thornton Kirby and published by . This book was released on 2002 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ocean Engineering Science written by Bernard Le Méhauté and published by Harvard University Press. This book was released on 2005-06-28 with total page 1340 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tides and Waves written by George Biddell Airy and published by . This book was released on 1845 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Computational Hydraulics written by Michael B. Abbott and published by Routledge. This book was released on 2017-07-05 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the updated new edition from the founder and inventor of the subject. It provides an account of the principles and a survey of modelling in hydraulic, coastal and offshore engineering.
Download or read book Wave and Tidal Energy written by Deborah Greaves and published by John Wiley & Sons. This book was released on 2018-03-28 with total page 761 pages. Available in PDF, EPUB and Kindle. Book excerpt: Eine umfassende Publikation zu sämtlichen Aspekten der Wellen- und Gezeitenenergie. Wave and Tidal Energy gibt einen ausführlichen Überblick über die Entwicklung erneuerbarer Energie aus dem Meer, bezieht sich auf die neueste Forschung und Erfahrungen aus Anlagentests. Das Buch verfolgt zwei Ziele, zum einen vermittelt es Einsteigern in das Fachgebiet eine Überblick über die Wellen- und Gezeitenenergie, zum anderen ist es ein Referenzwerk für komplexere Studien und die Praxis. Es vermittelt Detailwissen zu wichtigen Themen wie Ressourcencharakterisierung, Technologie für Wellen- und Gezeitenanlagen, Stromversorgungssysteme, numerische und physikalische Modellierung, Umwelteffekte und Politik. Zusätzlich enthält es eine aktuelle Übersicht über Entwicklungen in der ganzen Welt sowie Fallstudien zu ausgewählten Projekten. Hauptmerkmale: - Ausführliches Referenzwerk zu allen Aspekten der interdisziplinären Fachrichten Wellen- und Gezeitenenergie. - Greift auf die neuesten Forschungsergebnisse und die Erfahrung führender Experten in der numerischen und laborgestützten Modellierung zurück. - Gibt einen Überblick über regionale Entwicklungen in aller Welt, repräsentative Projekte werden in Fallstudien vorgestellt. Wave and Tidal Energy ist ein wertvolles Referenzwerk für eine breite Leserschaft, von Studenten der Ingenieurwissenschaften und technischen Managern über politische Entscheidungsträger bis hin zu Studienabsolventen und Forschern.
