The theoretical foundations and potential for large-eddy simulation (LES) in fluvial geomorphic and sedimentological research

Détails

ID Serval
serval:BIB_73164E3D1206
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
The theoretical foundations and potential for large-eddy simulation (LES) in fluvial geomorphic and sedimentological research
Périodique
EARTH-SCIENCE REVIEWS
Auteur(s)
Keylock CJ, Hardy RJ, Parsons DR, Ferguson RI, Lane SN, Richards KS
ISSN
0012-8252
Statut éditorial
Publié
Date de publication
08/2005
Volume
71
Numéro
3-4
Pages
271-304
Notes
ISI:000231298600004
Résumé
Large-eddy simulation (LES) is a method for resolving the
time-dependent structure of high Reynolds number, turbulent flows. With
LES it is possible to model and track the behaviour of coherent
turbulent structures and study their effect on the flow field. Hence,
LES is potentially an important research tool in the fluvial sciences
where flow mixing, sediment entrainment and sediment transport are all
affected by the presence of coherent vortices and their interactions
with channel boundaries and other flow structures. This paper
introduces the LES methodology, discusses a variety of ways for
representing small-scale processes within LES (the subgrid-scale
modelling problem), and provides some examples of early work into the
use of LES in a fluvial context. A number of advances in computational
power and numerical methods are required before LES can be effectively
applied at the river reach scale. This paper considers some recent
developments and their potential for providing validated large-eddy
simulations of river flow at the channel scale. (c) 2005 Elsevier B.V.
All rights reserved.
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Création de la notice
03/02/2011 14:41
Dernière modification de la notice
20/08/2019 14:31
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