Prediction of sediment transport in the swash-zone by using a nonlinear wave model

摘要

In the present work, the sediment transport rate in the swash zone is estimated using a Boussinesq model coupled with a porous flow model in order to incorporate the infiltration-exfiltration effects. The transport rate is estimated from a modified Meyer-Peter and Muller formula using different values the multiplier C for uprush and backwash to incorporate the observed higher transporting efficiency of the uprush due to the presence of pre-suspended sediment from the bore collapse. Alternatively, the depth-integrated transport equation for suspended sediment is solved. The comparison between model results and experimental data shows that both approaches are able to give satisfactory results. (c) 2006 Elsevier Ltd. All rights reserved.