Abstract
Many existing practical sand transport formulae for the coastal marine environment are restricted to limited ranges of hydrodynamic and sediment conditions. This paper presents a new practical formula for net sand transport induced by non-breaking waves and currents, and currents alone. The formula is based on the semi-unsteady, half wave-cycle concept, with bed shear stress as the main forcing parameter. Unsteady phase-lag effects between velocities and concentrations are accounted for, which are especially important for rippled bed and fine sand sheet-flow conditions. Recently recognized effects on the net transport related to flow acceleration skewness and progressive surface waves are also included. The formula is calibrated against a large dataset of net transport rate measurements from oscillatory flow tunnels and a large wave flume covering a wide range of flow and sand conditions. Good agreement is obtained between observations and predictions, and its validity is shown for bedload dominated steady flow conditions.
Original language | English |
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Title of host publication | Proceedings of 32nd Conference on Coastal Engineering (ICCE) |
Subtitle of host publication | June 30 - July 5, Shanghai, China, 2010 |
Editors | Jane McKee Smith, Patrick Lynett |
Publisher | Coastal Engineering Research Council |
Pages | 1-14 |
ISBN (Print) | 978-0-9896611-0-2 |
DOIs | |
Publication status | Published - 2011 |
Event | 32nd International Conference on Coastal Engineering, ICCE 2010 - Shanghai, China Duration: 30 Jun 2010 → 5 Jul 2010 Conference number: 32 |
Publication series
Name | Coastal Engineering Proceedings |
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Publisher | Coastal Engineering Research Council |
ISSN (Print) | 2156-1028 |
Conference
Conference | 32nd International Conference on Coastal Engineering, ICCE 2010 |
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Abbreviated title | ICCE |
Country/Territory | China |
City | Shanghai |
Period | 30/06/10 → 5/07/10 |
Keywords
- METIS-278915