TIME SCALE FOR MODELING BEACH CHANGE

Masahiro Ito; Yoshito Tsuchiya

doi:10.9753/icce.v20.88

No. 20 (1986), Conference Proceedings

No. 20 (1986)

TIME SCALE FOR MODELING BEACH CHANGE

Conference Proceedings

https://doi.org/10.9753/icce.v20.88

Published 1986-01-29

Masahiro Ito⁺⁻
Yoshito Tsuchiya⁺⁻

Masahiro Ito

Department of Civil Engineering, Meijo University

Yoshito Tsuchiya

Disaster Prevention Research Institute, Kyoto University

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Keywords

time scale
beach change
beach model

How to Cite

Ito, M., & Tsuchiya, Y. (1986). TIME SCALE FOR MODELING BEACH CHANGE. Coastal Engineering Proceedings, 1(20), 88. https://doi.org/10.9753/icce.v20.88

Abstract

A time scale in the similarity of beach change between model and prototype in transitional beach processes from an initial even slope to an equilibrium is developed using a series of small- and large-scale experiments in which the experimental conditions were set up with the scale-model relationship by the authors (1984). The time scale is obtained empirically as a function of experimental scale. Applied the proposed time scale and the scale-model relationship to model experiments, similarity of morphological beach change such as shoreline change and relative breaker point was well reproduced within the allowable range of experimental error. A semi-theoretical time scale is obtained from the continuity equation, the sediment transport rate, and the scale-model relationship of equilibrium beach profile in two-dimensional beach change. The relation between experimental and semi-theoretical time scale is discussed.

https://doi.org/10.9753/icce.v20.88

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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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TIME SCALE FOR MODELING BEACH CHANGE

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