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Numerical Modeling Of The Nearshore Region
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Book Synopsis Numerical Modeling of the Nearshore Region by : James T Kirby (Jr)
Download or read book Numerical Modeling of the Nearshore Region written by James T Kirby (Jr) and published by . This book was released on 1982 with total page 171 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this chapter the theoretical framework for the development of time averaged governing equations for the problem of waves and currents in the nearshore zone is outlined. The development of the numerical circulation models in either the 'linear' or 'nonlinear' form is then described in Chapter III based on the theoretical framework. In general, the development of each model has been described in previous technical reports; the linear model in Birkemeier and Dalrymple (1976), and the nonlinear model in Ebersole and Dalrymple (1979). For this reason, some of the derivations and intermediate steps needed to develop the governing equations are not described in detail in the present report. The reader can refer to the previous work for missing details. However, both models now include the option of calculating wave energy decay due to interaction with the bottom, which has not been included in previous reports. The theory and implementation of this option is described in detail. (Author).
Book Synopsis Numerical Modelling of the Nearshore Region by : James Thornton Kirby
Download or read book Numerical Modelling of the Nearshore Region written by James Thornton Kirby and published by . This book was released on 1982 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report represents a review and conclusion of several studies conducted at the University of Delaware with the aim of providing numerical model for calculating nearshore wave-induces currents and mean water level fluctuations. The purpose of constructing a numerical model rests on the need to extend our predictive capabilities into situations which lie beyond the scope of analytic methods. In the end, all numerical models, as well as analytical formulations, are limited in scope by the simplifying assumptions incorporated in their theoretical framework; in this regard, the present models represent an attempt to extend present analytic treatments to the case of a complex topography in two dimensions. The models do not consider the associated sediment transport problem, although this capability can be added. Also, the models require that the incident wave field be regarded as monochromatic, or, after some model modifications, narrow banded enough to be represented as a modulated wave train at a single carrier frequency.
Book Synopsis Numerical Modeling of Waves in the Nearshore Zone with Permeable Structures by : Santiago Alfageme
Download or read book Numerical Modeling of Waves in the Nearshore Zone with Permeable Structures written by Santiago Alfageme and published by . This book was released on 1995 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Evaluation of Two Cross-shore Numerical Models in Predicting Subaerial Beach Morphology by :
Download or read book An Evaluation of Two Cross-shore Numerical Models in Predicting Subaerial Beach Morphology written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Numerical modeling in the nearshore region has become an important tool in both planning and design for coastal engineers. In recent decades, the complexity of these models has increased as our knowledge of existing processes has matured. However, gaps still remain between what we as engineers understand about the nearshore environment and what actually exists. Due to these uncertainties, modelers have taken different approaches to simulate sediment transport. The objective of this thesis is to evaluate the ability of two cross-shore numerical models, SBEACH and COSMOS, in their ability to predict subaerial beach profile change resulting from storm events. The predicted profiles from each model were compared to actual measured post-storm profiles. Quantitative comparison of results from both models was preformed using BMAP (Beach Morphology Analysis Package). A rating of good, fair, or poor was assigned to the models based on how closely each predicted the measured subaerial profile change. The waterline recession was also analyzed and a rating of reasonable or unreasonable was assigned to each model based on its predicted value. The fundamental difference between the two models is in regards to sediment transport. The SBEACH model predicts sediment transport rates as a function of wave energy dissipation. The COSMOS model utilizes the energetics approach where sediment transport is dependent on mean velocity currents in both the bed and the suspended boundary layers. The results presented within this report show that SBEACH performed equally as well or better in each case. The COSMOS model consistently over predicted erosion on the beach face and recession of the waterline. For the study sites where data was collected for this research, SBEACH is the recommended model by the author.
Book Synopsis Numerical Modeling of Nearshore Morphological Changes Under Current-wave Field by : Taerim Kim
Download or read book Numerical Modeling of Nearshore Morphological Changes Under Current-wave Field written by Taerim Kim and published by . This book was released on 1995 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Numerical Modeling of Waves and Wave-induced Currents in the Nearshore Zone by : Yang Zhang
Download or read book Numerical Modeling of Waves and Wave-induced Currents in the Nearshore Zone written by Yang Zhang and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: For rip currents, however, the impacts are much less significant because refraction and breaking are the dominant processes in this case. Finally, numerical experiments on rip currents show that wave-current interaction has significant impacts on the unsteady flow and the instabilities are sensitive to a small variation range of the angle of wave incidence.
Book Synopsis Advances in Coastal Modeling by : V.C. Lakhan
Download or read book Advances in Coastal Modeling written by V.C. Lakhan and published by Elsevier. This book was released on 2003-10-24 with total page 614 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book unifies and enhances the accessibility of contemporary scholarly research on advances in coastal modeling. A comprehensive spectrum of innovative models addresses the wide diversity and multifaceted aspects of coastal research on the complex natural processes, dynamics, interactions and responses of the coastal supersystem and its associated subsystems. The twenty-one chapters, contributed by internationally recognized coastal experts from fourteen countries, provide invaluable insights on the recent advances and present state-of-the-art knowledge on coastal models which are essential for not only illuminating the governing coastal process and various characteristics, but also for understanding and predicting the dynamics at work in the coastal system. One of the unique strengths of the book is the impressive and encompassing presentation of current functional and operational coastal models for all those concerned with and interested in the modeling of seas, oceans and coasts. In addition to chapters modeling the dynamic natural processes of waves, currents, circulatory flows and sediment transport there are also chapters that focus on the modeling of beaches, shorelines, tidal basins and shore platforms. The substantial scope of the book is further strengthened with chapters concentrating on the effects of coastal structures on nearshore flows, coastal water quality, coastal pollution, coastal ecological modeling, statistical data modeling, and coupling of coastal models with geographical information systems.
Book Synopsis Numerical Modeling Of Water Waves In Coastal And Ocean Engineering by : Pablo Higuera
Download or read book Numerical Modeling Of Water Waves In Coastal And Ocean Engineering written by Pablo Higuera and published by World Scientific. This book was released on 2023-03-16 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: This unique compendium introduces the field of numerical modelling of water waves. The topics included the most widely used water wave modelling approaches, presented in increasing order of complexity and categorized into phase-averaged and phase-resolving at the highest level.A comprehensive state-of-the-art review is provided for each chapter, comprising the historical development of the method, the most relevant models and their practical applications. A full description on the method's underlying assumptions and limitations are also provided. The final chapter features coupling among different models, outlining the different types of implementations, highlighting their pros and cons, and providing numerous relevant examples for full context.The useful reference text benefits professionals, researchers, academics, graduate and undergraduate students in wave mechanics in general and coastal and ocean engineering in particular.
Book Synopsis Enhanced Hydrodynamical-numerical Model for Near-shore Processes by : R. A. Bauer
Download or read book Enhanced Hydrodynamical-numerical Model for Near-shore Processes written by R. A. Bauer and published by . This book was released on 1978 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Numerical Modeling of Water Waves by : Pengzhi Lin
Download or read book Numerical Modeling of Water Waves written by Pengzhi Lin and published by CRC Press. This book was released on 2008-04-30 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt: Modelling large-scale wave fields and their interaction with coastal and offshore structures has become much more feasible over the last two decades with increases in computer speeds. Wave modelling can be viewed as an extension of wave theory, a mature and widely published field, applied to practical engineering through the use of computer tools.
Book Synopsis Numerical Modelling of Waves and Nearshore Dynamics in Fetch Limited Water Bodies by : Peter B. Hale
Download or read book Numerical Modelling of Waves and Nearshore Dynamics in Fetch Limited Water Bodies written by Peter B. Hale and published by . This book was released on 1980 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Evaluation of a Numerical Model for Wave-and Wind-induced Nearshore Circulation Using Field Data by : J. H. Allender
Download or read book Evaluation of a Numerical Model for Wave-and Wind-induced Nearshore Circulation Using Field Data written by J. H. Allender and published by . This book was released on 1981 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Regional Coastal Processes Numerical Modeling System by : Bruce a Ebersole
Download or read book Regional Coastal Processes Numerical Modeling System written by Bruce a Ebersole and published by Forgotten Books. This book was released on 2017-10-28 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Regional Coastal Processes Numerical Modeling System: Report 1, Rcpwave-a Linear Wave Propagation Model for Engineering Use The model development documented here was authorized as part of the Civil Works Research and Development Program of the Office, Chief of Engineers (oce), US Army. The research work unit funding this work, Regional Coastal Processes Numerical Modeling System, is part of the Shore Protection and Res toration Program. Messrs. John H. Lockhart and John G. Housley were the ocr Technical Monitors during preparation and publication of this report. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Book Synopsis NUMERICAL MODELING OF SHORELINE CHANGES AROUND MANAVGAT RIVER MOUTH. by :
Download or read book NUMERICAL MODELING OF SHORELINE CHANGES AROUND MANAVGAT RIVER MOUTH. written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: River mouths are very active coastal regions. Continuous sediment supply by the river and the movement by wave action cause the shoreline to change in time and space. Modeling of shoreline changes is an essential step before the design of any coastal engineering project. This research aimed to develop a system of numerical models to present the shoreline changes around a river mouth. The system of numerical models has three components: 1) modeling of nearshore wave characteristics, 2) modeling of longshore sand transport rates using the results of the first component, 3) modeling of shoreline changes using the estimated sand transport rates. Thus, firstly, deep water wave characteristics including the annual wave rose affecting Manavgat River mouth have been obtained from the database of NATO TU-WAVES Project. Then REF/DIF1 and SWAN nearshore wave models have been used to find out nearshore wave conditions. Since the results obtained from REF/DIF1 wave model have been found to be more reasonable compared to SWAN’s output, REF/DIF1 wave model has been used in preparing a time series nearshore reference wave file with three hours time interval. This reference file has been used to run GENESIS. Last step of the numerical shoreline change modelling of Manavgat River mouth was the calibration procedure in which the “transport parameters” k1 and k2 have been determined. As there is lack of measurements of shoreline positions that can be used in calibrating shoreline change model, k1 and k2 has been approximately found to be k1=0.516 and k2=0.9 by using an empirical sediment transport formula. As a future study, it is recommended that when the protection structure controlling the river mouth is finished, the measurements of shoreline position behind the structure should be used in verification of shoreline change model in order to get more accurate results.
Book Synopsis Coastal and Inlet Processes Numerical Modeling System for Oregon Inlet, North Carolina by :
Download or read book Coastal and Inlet Processes Numerical Modeling System for Oregon Inlet, North Carolina written by and published by . This book was released on 1985 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Including Nearshore Processes in Phase-Averaged Hydrodynamics Models by :
Download or read book Including Nearshore Processes in Phase-Averaged Hydrodynamics Models written by and published by . This book was released on 2006 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt: The large spatial and time scales of the numerical modeling projects of the U.S. Army Corps of Engineers (USACE) requires the use of computationally efficient phase-averaged hydrodynamic models derived by averaging the equations of motion over a representative short wave period. Guidance in modeling nearshore regions with phase-averaged hydrodynamic models is provided herein. Physical processes unique to the surf zone are described along with methods of incorporating these effects to improve hydrodynamic predictions. Comparisons to detailed measurements from a laboratory basin experiment are used to demonstrate the significance of including processes unique to nearshore regions. To provide guidance that is applicable to varied phase-averaged models, details of the implementation are not provided herein, and the focus is on conceptual models.
Book Synopsis Coastal Engineering 2004 - Proceedings Of The 29th International Conference (In 4 Vols) by : Jane Mckee Smith
Download or read book Coastal Engineering 2004 - Proceedings Of The 29th International Conference (In 4 Vols) written by Jane Mckee Smith and published by World Scientific. This book was released on 2005-04-08 with total page 4836 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive and up-to-date volume contains 367 papers presented at the 29th International Conference on Coastal Engineering, held in Lisbon, Portugal, 19-24 September 2004. It is divided into five parts: waves; long waves, nearshore currents, and swash; sediment transport and morphology; coastal management, beach nourishment, and dredging; coastal structures. The contributions cover a broad range of topics including theory, numerical and physical modeling, field measurements, case studies, design, and management. Coastal Engineering 2004 provides engineers, scientists, and planners state-of-the-art information on coastal engineering and coastal processes.The proceedings have been selected for coverage in:
