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PORTAIL D'INFORMATION GÉOGRAPHIQUE

Flow separation at the inner (convex) and outer (concave) banks of constant-width and widening open-channel bends

Auteur(s) et Affiliation(s)

State Key Lab. of Urban and Regional Ecology, Research Center for Eco-environmental Sciences, CAS, Beijing, Chine
Ecole polytechnique fédérale de Lausanne - EPFL, Lausanne, Suisse
KLEINHANS, M.G.
Fac. of Geosciences, Univ., Utrecht, Pays-Bas
MCLELLAND, S.J.
Dept. of Geography, Environment and Earth Sciences, Univ., Hull, Royaume-Uni
UIJTTEWAAL, W.S.J.
Fac. of Civil Engineering and Geosciences, Univ. of Technology, Delft, Pays-Bas
MURPHY, B.J.
Dept. of Geography, Environment and Earth Sciences, Univ., Hull, Royaume-Uni
Fac. of Geosciences, Univ., Utrecht, Pays-Bas
PARSONS, D.R.
Univ., Hull, Royaume-Uni
CHEN, Q.
State Key Lab. of Urban and Regional Ecology, Research Center for Eco-environmental Sciences, CAS, Beijing, Chine


Description :
Here, the AA. report on successful laboratory experiments (Hull University, England) that elucidate flow structure in one constant-width bend and a second bend with an outer-bank widening. The experiments were performed with both a flat immobile gravel bed and mobile sand bed with dominant bedload sediment transport. In conclusion, the experiments elucidated three distinct processes of flow separation common in sharp bends : flow separation at the inner bank, an outer-bank cell of secondary flow, and flow separation and recirculation in an outer-bank widening.


Type de document :
Article de périodique

Source :
Earth surface processes and landforms, issn : 0197-9337, 2013, vol. 38, n°. 7, p. 696-716, nombre de pages : 21, Références bibliographiques : 3 p.

Date :
2013

Editeur :
Pays édition : Royaume-Uni, Chichester, Wiley

Langue :
Anglais
Droits :
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