DECOUPLED NUMERICAL MODEL OF THREE-DIMENSIONAL BEACH CHANGE

Magnus Larson; Nicholas C. Kraus; Hans Hanson

doi:10.9753/icce.v22.%p

No. 22 (1990), Conference Proceedings

No. 22 (1990)

DECOUPLED NUMERICAL MODEL OF THREE-DIMENSIONAL BEACH CHANGE

Conference Proceedings

https://doi.org/10.9753/icce.v22.%25p

Published 1990-01-29

Magnus Larson⁺⁻
Nicholas C. Kraus⁺⁻
Hans Hanson⁺⁻

Magnus Larson

Dept. of Water Resources Engrg., Institute of Technol., Univ. of Lund

Nicholas C. Kraus

Coastal Engrg, Res. Center, U.S. Army Engr. Waterways Experiment Station, 3909 Halls Ferry Road, Vicksburg

Hans Hanson

Dept. of Water Resources Engrg., Institute of Technol., Univ. of Lund

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Keywords

beach change
3D beach change
numerical model

How to Cite

Larson, M., Kraus, N. C., & Hanson, H. (1990). DECOUPLED NUMERICAL MODEL OF THREE-DIMENSIONAL BEACH CHANGE. Coastal Engineering Proceedings, 1(22). https://doi.org/10.9753/icce.v22.%p

Abstract

This paper describes a numerical model of three-dimensional beach change as produced by breaking waves and wave-induced currents. Cross - shore lines spaced at intervals alongshore form the basic calculation element, and cross-shore and longshore transport rates are calculated independently on the lines. Transport rates are coupled indirectly through the mass conservation equation and a contouring routine that determines local depth contour orientation for calculating wave transformation. The model has reduced calculation time compared to fully gridded hydrodynamic and beach change models, yet allows representation of complex boundary conditions, coastal structures, and movement of longshore bars and berms. Results of two test series are presented, one for the movement and protective functioning of a linear mound constructed of dredged material, and the other for impoundment at a jetty.

https://doi.org/10.9753/icce.v22.%25p

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Authors retain copyright and grant the Proceedings right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this Proceedings.

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DECOUPLED NUMERICAL MODEL OF THREE-DIMENSIONAL BEACH CHANGE

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