Abstract
The effects of wave breaking on sediment transport are studied through a new series of mobile-bed experiments in a large-scale wave flume. During the campaign, one experiment involving detailed sand transport process measurements was repeated at 12 different cross-shore location. This procedure allows studying of the cross-shore variation of sand transport processes along the breaking zone. Starting from an initially 1:10 slope followed by a horizontal test section, a breaker bar developed in the breaking region as a result of onshore transport pre-breaking and offshore transport post-breaking. Near-bed suspended sediment fluxes were directed offshore along the complete test section, suggesting that the onshore transport pre-breaking is mainly attributed to bedload. The offshore suspended flux was the sum of an onshore wave-driven component and an offshore current-driven component. The wave-driven contribution to total suspended transport rates seems significant mainly before the breaking point where they account for ~30% of total suspended transport fluxes.
Original language | English |
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Title of host publication | Coastal Sediments |
Editors | Ping Wang, Julie D Rosati, Jun Cheung |
Publisher | World Scientific |
ISBN (Electronic) | 978-981-4689-98-4 |
DOIs | |
Publication status | Published - Apr 2015 |
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Dive into the research topics of 'Sand transport process measurements under large-scale breaking waves'. Together they form a unique fingerprint.Datasets
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Sand Transport under Irregular and Breaking Waves (SINBAD)
O'Donoghue, T. (Creator), University of Aberdeen, 7 May 2015
DOI: 10.20392/500fffee-c968-4546-9972-b55a8a2eec41
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