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Author: William S. Dickson Publisher: ISBN: Category : Languages : en Pages : 0
Book Description
A new method is presented for estimating the reflection of a random, multi-directional sea from a coastal structure. The technique is applicable to an array of wave gauges of arbitrary geometry deployed seaward of the reflector. An expansion for small oblique wave incidence angles is used to derive an approximate relationship between measured array cross-spectra and a small number of parameters that describe the incident wave properties and the reflectivity of the structure. Model tests with simulated array data demonstrate that for wave incidence angles less than about 30 deg the new technique provides accurate and robust estimates of the gross properties of incident and reflected waves. The new method is applied to array data acquired offshore of a permeable, rubble mound breakwater in Monterey Bay, California. The estimated reflection coefficients decrease approximately linearly with creasing frequency. Whereas the observed reflections depend only weakly on the incident wave energy, the fraction of the incident wave energy flux transmitted through the breakwater decreases with increasing wave energy, suggesting that dissipation is enhanced with large amplitude waves.
Author: William S. Dickson Publisher: ISBN: Category : Languages : en Pages : 0
Book Description
A new method is presented for estimating the reflection of a random, multi-directional sea from a coastal structure. The technique is applicable to an array of wave gauges of arbitrary geometry deployed seaward of the reflector. An expansion for small oblique wave incidence angles is used to derive an approximate relationship between measured array cross-spectra and a small number of parameters that describe the incident wave properties and the reflectivity of the structure. Model tests with simulated array data demonstrate that for wave incidence angles less than about 30 deg the new technique provides accurate and robust estimates of the gross properties of incident and reflected waves. The new method is applied to array data acquired offshore of a permeable, rubble mound breakwater in Monterey Bay, California. The estimated reflection coefficients decrease approximately linearly with creasing frequency. Whereas the observed reflections depend only weakly on the incident wave energy, the fraction of the incident wave energy flux transmitted through the breakwater decreases with increasing wave energy, suggesting that dissipation is enhanced with large amplitude waves.
Author: William S. Dickson Publisher: ISBN: Category : Languages : en Pages : 38
Book Description
A new method is presented for estimating the reflection of a random, multi-directional sea from a coastal structure. The technique is applicable to an array of wave gauges of arbitrary geometry deployed seaward of the reflector. An expansion for small oblique wave incidence angles is used to derive an approximate relationship between measured array cross-spectra and a small number of parameters that describe the incident wave properties and the reflectivity of the structure. Model tests with simulated array data demonstrate that for wave incidence angles less than about 30 deg the new technique provides accurate and robust estimates of the gross properties of incident and reflected waves. The new method is applied to array data acquired offshore of a permeable, rubble mound breakwater in Monterey Bay, California. The estimated reflection coefficients decrease approximately linearly with creasing frequency. Whereas the observed reflections depend only weakly on the incident wave energy, the fraction of the incident wave energy flux transmitted through the breakwater decreases with increasing wave energy, suggesting that dissipation is enhanced with large amplitude waves.
Author: Charles K. Sollitt Publisher: ISBN: Category : Breakwaters Languages : en Pages : 238
Book Description
Rubble mound breakwaters are designed to protect exposed marine areas from excessive wave activity. Observations of breakwaters inter-acting with surface waves in laboratory models and in full-scale field applications demonstrate that significant wave energy is transmitted through the interstices of structures commonly regarded as impervious. The objective of this investigation is the development of a theoretical analysis to account for this phenomenon. Three breakwater configurations are considered: (1) crib style breakwaters with vertical walls and homogeneous fill, (2) conventional trapezoidal shape breakwaters with layered fill, and (3) pile array breakwaters composed of vertical piles placed in symmetric patterns. The two dimensional problem is studied. Waves are assumed to arrive at normal incidence. (Author).
Author: William N. Seelig Publisher: Forgotten Books ISBN: 9780265850015 Category : Languages : en Pages : 192
Book Description
Excerpt from Two-Dimensional Tests of Wave Transmission and Reflection Characteristics of Laboratory Breakwaters This report presents the results of research conducted to develop methods for estimating wave transmission past submerged, subaerial, permeable, and impermeable breakwaters. The final prediction techniques are given in the form of computer programs, and the laboratory data used to develop and test the methods are included in appendixes to this report. These methods supple ment Section of the Shore Protection Manual (spm). The work was carried out under the offshore breakwaters for shore stabilization program of the u.s. Army Coastal Engineering Research Center (cerc). 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.
Author: William N. Seelig Publisher: Forgotten Books ISBN: 9780266902270 Category : Science Languages : en Pages : 46
Book Description
Excerpt from Estimation of Wave Reflection and Energy Dissipation Coefficients for Beaches, Revetments, and Breakwaters Predicted rubble-mound breakwater wave reflection and transmission coefficients. Wave reflection coefficient as a function of wave frequency for an irregular wave condition with breaking waves. 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.
Author: Nguyen Trung Viet Publisher: Springer Nature ISBN: 9811502919 Category : Science Languages : en Pages : 1483
Book Description
This book presents selected articles from the International Conference on Asian and Pacific Coasts (APAC 2019), an event intended to promote academic and technical exchange on coastal related studies, including coastal engineering and coastal environmental problems, among Asian and Pacific countries/regions. APAC is jointly supported by the Chinese Ocean Engineering Society (COES), the Coastal Engineering Committee of the Japan Society of Civil Engineers (JSCE), and the Korean Society of Coastal and Ocean Engineers (KSCOE). APAC is jointly supported by the Chinese Ocean Engineering Society (COES), the Coastal Engineering Committee of the Japan Society of Civil Engineers (JSCE), and the Korean Society of Coastal and Ocean Engineers (KSCOE).
Author: William S. Dickson
Author: William S. Dickson
Author: William S. Dickson
Author: Charles K. Sollitt
Author: Charles Kevin Sollitt
Author: William N. Seelig
Author: William N. Seelig
Author: CROSS III R. H.
Author: William N. Seelig
Author: William N Seelig
Author: Nguyen Trung Viet