Separation of large-scale structure and ripples on sand mounds

Alistair Borthwick, Paul Taylor, Jinmin Huang, M. Isabel Garcia-Hermosa, Jin Sun, Peter K. Stansby, Richard L. Soulsby

Research output: Contribution to journalArticlepeer-review

Abstract

A simple method is proposed for the separation of a large-scale structure from small-scale ripples during the evolution of an isolated sand hill or spoil heap eroded by an oscillatory or steady flow by bed-load transport. This method is based on Hermite functions, a mother Gaussian hill and derivatives modified to be orthogonal. It is straightforward to apply and could be used to characterise the geometric properties of any isolated localised hill-like feature such as pollution concentration levels away from an outfall.
Original languageEnglish
Pages (from-to)15-24
Number of pages10
JournalProceedings of the ICE - Engineering and Computational Mechanics
Volume165
Issue numberEM1
DOIs
Publication statusPublished - Mar 2012

Keywords

  • coastal engineering. mathematical modelling. statistical analysis

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