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(Article of periodic en Anglais - 2011)

Document title

Effects of turbulence on the transport of individual particles as bedload in a gravel-bed river

Authors(s) and Affiliation(s)

PAIEMENT-PARADIS G. (1) ; MARQUIS G. (1) ; ROY A. (1) ;
(1) Département de Géographie, Université de Montréal, Québec, Montréal, CANADA

Abstract

This study investigates the association between mean and turbulent flow variables and the movement of individual particles in a gravel-bed river. The experimental design implemented in the Eaton-North River (Québec, Canada) is based on the simultaneous observations at a high temporal resolution of both particle movements as bedload using an underwater video camera and of the streamwise and vertical flow velocity components using a vertical array of three electromagnetic current meters (ECMs). Mean and turbulent flow properties obtained for periods without sediment transport are compared to those when particles were sliding and rolling. In this study, fluid acceleration seems to play a more important role than Reynolds shear stress or normal stresses for bedload movements

Source

Article of periodic

published at : Earth surface processes and landforms / ISSN 0197-9337 / CODEN ESPLDB

Editor : Wiley, Chichester - ROYAUME-UNI (1981)

Millesime : 2011, vol. 36, no1 [pp. 107-116]

Collation : 7 fig., 5 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 17355

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/esp.2027

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2011
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