Incipiency of Sediment Motion Under Combined Waves and Currents

Authors

  • I.G. Kantardgi

Keywords:

Shear stress, longshore transport, sediment, effective stress, coastal zone

Abstract

A new formula for nearbottom shear stress under waves and currents was obtained as a result of experiments on the threshold of sediment motion in a laboratory channel. This work supports the hypothesis of the effective shear stress composition in combined flows. A modified longshore sediment transport formula was obtained by adapting the Engelund-Hansen formula in conjunction with the new shear stress formulation. The modified longshore sediment transport formula has a better correlation with the CERC formula than the original Engelund-Hansen formula.

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Published

1992-04-22

Issue

Vol. 8 No. 2 (1992): Journal of Coastal Research

Section

Articles

License

Authorization for personal use is granted by the Coastal Education and Research Foundation [CERF]. By submitting a manuscript, the authors agree that the copyright for their article is transferred to the publisher if the article is accepted for publication. Assignment of copyright is not required, however, from authors who work for organizations which do not permit such assignment, The copyright covers the exclusive rights to reprduce and distribute the article, inclduing reprints, photographic reproductions, microform, or any other reproductions of a similar nature, and translations.