Details of Grant 

EPSRC Reference:	GR/T28089/01
Title:	Sand Transport in Oscillatory Flow In The Sheet Flow Regime
Principal Investigator:	O'Donoghue, Professor T
Other Investigators:	Pan, Professor S Davies, Professor AG
Researcher Co-Investigators:
Project Partners:	Alkyon Hydraulic Consultancy and Researc DEFRA Delft Hydraulics Environment Agency (Grouped) H R Wallingford Ltd Ministry of Infrastructure and the Env Royal HaskoningDHV UK University of Twente
Department:	Engineering
Organisation:	University of Aberdeen
Scheme:	Standard Research (Pre-FEC)
Starts:	01 April 2005	Ends:	31 October 2009	Value (£):	312,027
EPSRC Research Topic Classifications:	Coastal & Waterway Engineering
EPSRC Industrial Sector Classifications:	Environment Water
Related Grants:
Panel History:
Summary on Grant Application Form
Sheet flow occurs under high wave conditions when flow velocities at the seabed are high. The impact of sheet flow on the overall sediment budget for a coastal area is potentially very large because of the associated very high sand transport rates. It is therefore important that coastal engineers and coastal managers are equipped with well-founded methods for predicting sand transport under these conditions. The research is a collaborative venture between Aberdeen and Twente Universities, with input from other Dutch and UK university- and industry-based experts. There are two main parts to the project: a research part and a utilisation part. The research part is concerned with the development of a new semi-empirical model for sheet flow conditions. The new model will be based on insights from selected process-based numerical models of sheet flow transport and on understanding and quantitative data from new and existing large-scale experiments. The new experiments will be carried out in the large oscillatory flow tunnel at Aberdeen (AOFT) and in the full-scale wave flume at Hannover (GWK). The utilisation part of the project progresses the research from fundamental study to practical application by end-users. It involves the Aberdeen and Twente teams working with a number of key industrial partners drawn from the project's User Committee. The research outcomes will be incorporated into modelling systems used by coastal engineering practitioners and tested for a range of practical scenarios. The overall outcome of the research will be improved capability and greater confidence in end-user predictions of sand transport under waves and currents, especially for high-transport sheet flow conditions.
Key Findings
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Further Information:
Organisation Website:	http://www.abdn.ac.uk