Threshold of motion of natural sediment particles in oscillatory flows

She, K., Trim, L. and Pope, D.J. (2006) Threshold of motion of natural sediment particles in oscillatory flows Journal of Coastal Research, 22 (3). pp. 701-709. ISSN 0749-0208

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Abstract

The mechanism of the threshold of sediment motion under wave action has been investigated by examining the dynamic forces acting on the sediment particle. The force analysis has led to a range of nondimensional parameters of clear physical significance, which are then applied to the analysis of a range of existing experimental data. The introduction of some new nondimensional parameters has resulted in significant improvement in the definition of the threshold of motion condition. Several empirical equations involving different nondimensional parameters have been derived, providing a mathematical description of the threshold condition of the sediment motion. The accuracy of these empirical equations is examined in the context of scientific and engineering applications and a simple equation is recommended for its accuracy and ease of use.

Item Type: Journal article
Uncontrolled Keywords: incipient motion; sediment transport
Subjects: F000 Physical Sciences > F800 Physical Geography and Environmental Sciences > F850 Environmental Sciences
H000 Engineering > H200 Civil Engineering
DOI (a stable link to the resource): 10.2112/04-0149
Faculties: Faculty of Science and Engineering > School of Environment and Technology > Ground water and structural engineering
Faculty of Science and Engineering > School of Environment and Technology
Depositing User: editor environment
Date Deposited: 17 Jan 2007
Last Modified: 01 May 2012 11:17
URI: http://eprints.brighton.ac.uk/id/eprint/1068

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