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(Article of periodic en Anglais - 2012)

Document title

Do alternate bars affect sediment transport and flow resistance in gravel-bed rivers ?

Authors(s) and Affiliation(s)

FRANCALANCI S. (1) ; SOLARI L. (2) ; TOFFOLON M. (3) ; PARKER G. (4) ;
(1) CERAFRI - Center of Research and Advanced Education for Hydrogeological Risk Prevention, Retignano di Stazzema, ITALIE
(2) Dep. of Civil and Environmental Engineering, Univ., Firenze, ITALIE
(3) Dep. of Civil and Environmental Engineering, Univ., Trento, ITALIE
(4) Dep. of Civil and Environmental Engineering and Dep. of Geology, Univ. of Illinois, Urbana, ETATS-UNIS

Abstract

The aim of this work is to quantify whether and how the presence of a complex three-dimensional (3D) morphology due to alternate bars in a straight channel may generate an additional contribution to total drag resistance and sediment transport, as compared to the equivalent one-dimensional (1D) case of a flat and straight bed, having the same channel slope and average flow velocity. The calculations result in a method for correcting 1D models to account for the total sediment transport and resistance in a cross-section due to 3D effects of alternate bars. The AA. term the resulting relations "morphologically averaged" sediment transport and resistance equations

Source

Article of periodic

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

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

Millesime : 2012, vol. 37, no8 [pp. 866-875]

Bibliographic references : 28 ref.

Collation : 14 fig., 1 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 17355

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/esp.3217

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2013
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