(Article of periodic en Anglais - 1994)

Document title

Debris-fan constrictions and flood hydraulics in river canyons: some implications from two-dimensional flow modeling

Authors(s) and Affiliation(s)



This paper utilizes two-dimensional flow modelling to compare flood hydraulics along two alternative versions of an idealized reach of a river canyon: one with uniform width, gradient and cross-section, and a second pertubed by a prominent debris fan along the valley wall. The flow pattern along the reach with the fan is far more complex than the pattern along the uniform reach. Maximum velocity along the debris-fan reach is up to 50 per cent higher than along the uniform reach, maximum bed shear stress is up to three or four times higher, and an area of supercritical flow is predicted extending


Article of periodic

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

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

Millesime : 1994, vol. 19, no8 [pp. 681-697]

Bibliographic references : 34 ref.

Collation : Illustration ;




Bureau de recherches géologiques et minières - Orléans

INIST-CNRS, Cote INIST : 17355

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 1995.
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