Computational fluid dynamics and the physical modelling of an upland urban river

Geomorphology on large rivers. Special issue

Auteurs :
MA, L.
ASHWORTH, P.J.
BEST, J.L.
ELLIOTT, L.
INGHAM, D.B.
WHITCOMBE, L.J.
GUPTA, A.

Description :
This paper describes the application of a commercially available, three-dimensional computational fluid dynamic (CFD) model to simulate the flow structure in an upland river that is prone to flooding. Simulations use a rectangular channel geometry, smooth sidewalls and a bed topography obtained from the field site that contains a subdued pool-riffle sequence. Results are presented from the numerical and flume models for the water surface and streamwise velocity pattern and for the secondary flows simulated in the numerical model. Results suggest that the streamwise velocity is the main influence on the flow structure at the discharge and channel configuration studied.


Type de document :
Congrès

Source :
Conference of the International Association of Geomorphologists Working Group on large rivers, Shangai, Chine, 1999, Geomorphology (Amsterdam), issn : 0169-555X, 2002, vol. 44, n°. 3-4, p. 375-391, nombre de pages : 17, Collation : Illustration, Références bibliographiques : 51 ref.

Date :
2002

Editeur :
Pays édition : Pays-Bas, Amsterdam, Elsevier