Bed Shear Stress Coefficient Within The Surf Zone

Author : Carlos Severino Veitia Garcia
Publisher :
ISBN 13 :
Total Pages : 122 pages
Book Rating : 4.75/5 ( download)

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Download or read book Bed Shear Stress Coefficient Within the Surf Zone written by Carlos Severino Veitia Garcia and published by . This book was released on 1977 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt: An analytical formulation of the bed shear stress coefficient inside the surf zone is derived using the concept of radiation stress. A truncated Rayleigh p.d.f. is used to describe the wave field inside the surf zone and provides the input to calculate the variation of wave energy and longshore current as a function of wave height, water depth and distance to shore. The wave set-up is approximated using a sinusoidal wave solution. Field measurements of longshore current and waves within the surf zone are used to calculate the bed shear stress coefficient. Frequency distributions and statistics are calculated for the bed shear stress coefficient.

Author :
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.50/5 ( download)

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Download or read book Bed Shear Stress Coefficient Within the Surf Zone written by and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : R. Deigaard
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.59/5 ( download)

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Download or read book Measurements of the Bed Shear Stress in a Surf Zone written by R. Deigaard and published by . This book was released on 1991 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : Coastal Engineering Research Center (U.S.)
Publisher :
ISBN 13 :
Total Pages : 754 pages
Book Rating : 4.42/5 ( download)

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Download or read book Miscellaneous Report - Coastal Engineering Research Center written by Coastal Engineering Research Center (U.S.) and published by . This book was released on 1976 with total page 754 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : Jørgen Fredsøe
Publisher : World Scientific Publishing Company
ISBN 13 : 9814365688
Total Pages : 392 pages
Book Rating : 4.80/5 ( download)

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Download or read book Mechanics of Coastal Sediment Transport written by Jørgen Fredsøe and published by World Scientific Publishing Company. This book was released on 1992-11-02 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book treats the subject of sediment transport in the marine environment, covering transport of noncohesive sediment by waves and currents in- and outside the surf zone. It can be read independently, but a background in hydraulics and basic wave mechanics is required. The primary aim of the book is to describe the physical processes of sediment transport and how to represent them in mathematical models. The book can be divided in two main parts; in the first, the relevant hydrodynamic theory is described. This part contains a review of elementary theory for water waves, chapters on the turbulent wave boundary layer and the turbulent interaction between waves and currents, and finally, surf zone hydrodynamics and wave driven currents. The second part covers sediment transport and morphological development.The part on sediment transport introduces the basic concepts (critical bed shear stress, bed load, suspended load and sheet layer, near-bed concentration, effect of sloping bed); it treats suspended sediment in waves and current and in the surf zone, and current and wave-generated bed forms. Finally, the modelling of cross-shore and long-shore sediment transport is described together with the development of coastal profiles and coastlines.

Author : Dennis James Whitford
Publisher :
ISBN 13 :
Total Pages : 238 pages
Book Rating : 4.40/5 ( download)

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Download or read book Wind and Wave Forcing of Longshore Currents Across a Barred Beach written by Dennis James Whitford and published by . This book was released on 1988 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: Previous investigations of longshore currents have included simplifying assumptions and restriction (such as a planar beach, a steady and depth uniform flow, spatially-variant bed shear stress and turbulent momentum exchange, and the exclusion of surface wind stress. These assumptions are quantitatively investigated by calculating the relative importance of each term in the longshore momentum balance with an emphasis on the relative importance of wind forcing across the barred nearshore. Wind and wave forcing of longshore currents across a barred beach are examined using both a numerical model and field measurements. A local momentum balance was measured at various locations across the surf zone during the SUPERDUCK experiment held at the USACE CERC Field Research Facility, Duck, N.C. in October 1986. A moveable sled was instrumented with pressure, current, and wind sensors to measure the various terms in the longshore momentum equation. Stability-dependent atmospheric drag coefficients for the surf zone are determined from wind stress measurements acquired just beyond the surf zone and wind speed measurements acquired from an anemometer atop the 9 m sled mast. Breaking waves were visually identified and electronically marked on the data tapes. Keywords: Ocean currents; Air water interactions; Nearshore surf zone; Wind stress; Theses. (EDC).

Author : Alan W. Niedoroda
Publisher :
ISBN 13 :
Total Pages : 104 pages
Book Rating : 4.45/5 ( download)

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Download or read book Shoreface, Surf Zone Sediment Exchange Processes and Shoreface Dynamics written by Alan W. Niedoroda and published by . This book was released on 1980 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : Coastal Engineering Research Center (U.S.)
Publisher :
ISBN 13 :
Total Pages : 508 pages
Book Rating : 4.66/5 ( download)

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Download or read book Miscellaneous Report written by Coastal Engineering Research Center (U.S.) and published by . This book was released on 1976 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : Wei-Chong Yang
Publisher :
ISBN 13 :
Total Pages : 232 pages
Book Rating : 4.70/5 ( download)

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Download or read book Surf Zone Properties and On/offshore Sediment Transport written by Wei-Chong Yang and published by . This book was released on 1982 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: The surf zone properties and the on/offshore sediment transport rate were studied. A non-dimensional surf zone parameter was obtained by taking the ratio of natural swash period to wave period. This parameter, in addition to its wide application in describing the breaker types, was pertinent to describing the flow patterns in surf zone and defining the region of validity of the similarity solutions. A similarity model was applied to describe the flow field of breaking waves in surf zone. Laboratory results from other investigators and those obtained in the present study were used to test the validity of the proposed model. (Author).

Author : Tomoya Shibayama
Publisher : World Scientific Publishing Company
ISBN 13 : 9813107200
Total Pages : 228 pages
Book Rating : 4.05/5 ( download)

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Download or read book Coastal Processes written by Tomoya Shibayama and published by World Scientific Publishing Company. This book was released on 2008-12-22 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides us with important concepts in coastal engineering, their applications to coastal processes and disaster prevention works. It is designed for graduate students pursuing advanced studies in coastal processes and for engineers and managers of coastal zone management. The first part describes basic concepts of coastal engineering, dealing mainly with wave-induced physical problems in the field of coastal engineering and hydraulics. The second part consists of the author's results of 30 years of scientific research on the progress of coastal sediment transport and coastal disasters. In terms of sediment transport study, the book covers not only coastal zones but also sediment production in river basins and river sediment transport to understand the present reasons for coastal erosion. A number of case studies for various countries around the world are given, and from the descriptions provided, it is possible to understand the different problems and challenges facing each country.