Impact of a uniform bore on an erodible beach

Fangfang Zhu, Nicholas Dodd, Riccardo Briganti

Research output: Journal PublicationArticlepeer-review

13 Citations (Scopus)

Abstract

The impact of a uniform bore on an erodible beach is investigated using a shallow water description and a sediment conservation equation. The solution, which is obtained using the method of characteristics, employs a cubic bed-load formula and a crudely calibrated sediment transport coefficient. It is found that, as with the fixed bed case of Hibberd and Peregrine (1979), a backwash bore forms, which for the mobile bed also comprises a bed step. It is found that this bed step achieves a significant height. The volume of sand deposited above the final still water level is consistent with that observed under certain events on some sandy beaches.

Original languageEnglish
Pages (from-to)326-333
Number of pages8
JournalCoastal Engineering
Volume60
Issue number1
DOIs
Publication statusPublished - Feb 2012
Externally publishedYes

Keywords

  • Bore
  • Sediment transport
  • Swash
  • Tsunami morphodynamics

ASJC Scopus subject areas

  • Environmental Engineering
  • Ocean Engineering

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