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AbstractThe transport of sediment over a sloping breakwater Hogg, A. J. and Pritchard, D. (2004): Proceedings of the Fifteenth Australasian Fluid Mechanics Conference (CD-ROM), ed. M. Behnia, W. Lin and G. D. McBain (University of Sydney), paper AFMC00054. We analyse the transport of suspended sediment by a single swash event on a sloping breakwater and investigate the effects of overtopping on the motion and the redistribution of particles. By deploying a Lagrangian frame of reference, we calculate the net transport by these flows and demonstrate that overtopping promotes the landwards transport of sediment, primarily because the backwash of the swash is significantly weakened. Furthermore we quantify the flux of sediment that is transported over the crest to be deposited behind the breakwater. This short contribution is essentially an extension of the work in another paper, and was originally included in it before a referee persuaded us that it was a distraction. However, it probably makes most sense in the context of the earlier work. |