On the transport of suspended sediment by a swash event on a plane beach |
| |
| Institution: | 1. BP Institute for Multiphase Flow, University of Cambridge, Madingley Rise, Cambridge CB3 0EZ, England, United Kingdom;2. Centre for Environmental and Geophysical Flows, School of Mathematics, University of Bristol, University Walk, Bristol BS8 1TW, England, United Kingdom |
| |
| Abstract: | We develop solutions for the transport of suspended sediment by a single swash event following the collapse of a bore on a plane beach, and we investigate the morphodynamical role that such transport may play. Although the intrinsic asymmetry between uprush and backwash velocities tends to encourage the export of sediment, we find that swash events may be effective in distributing across the swash zone much or all of the sediment mobilised by bore collapse; additionally, settling lag effects may promote a weak onshore movement of sediment. We quantify both effects in terms of the properties of the sediment and of the swash event, and comment on the relationship between our findings and recent field studies of swash zone sediment transport. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
