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(Article of periodic en Anglais - 2001)

Document title

Computational fluid dynamics modelling of boundary roughness in gravel-bed rivers : an investigation of the effects of random variability in bed elevation

Authors(s) and Affiliation(s)

NICHOLAS A.P. ;

Abstract

Results from a series of numerical simulations of two-dimensional open channel flow, conducted using the computational fluid dynamics (CFD) code FLUENT, are compared with data quantifying the mean and turbulent characteristics of open-channel flow over 2 contrasting gravel beds. The aims of this study are : to assess the performance of the CFD model; to identify the limitations of the conventional wall function approach; to explore the potential for modelling intermediate-scale roughness effects using a random elevation model, and to address the wider implications of these results for the application of CFD models to natural gravel-bed channels

Source

Article of periodic

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

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

Millesime : 2001, vol. 26, no4 [pp. 345-362]

Bibliographic references : 44 ref.

Collation : Illustration ;

Language

Anglais

Localisation

Bureau de recherches géologiques et minières - Orléans

INIST-CNRS, Cote INIST : 17355

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2001.
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