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(Article of periodic en Anglais - 2005)

Document title

Modelling granular sediment transport over water-worked gravels

published at : Quantifying rates and timescales of geomorphic processes : part 1. Special issue

Authors(s) and Affiliation(s)

HARDY R.J. ;

Abstract

This paper reports a numerical model that calculates the transport paths of individual granular particles over a natural water-worked gravel surface. Surface topography is measured using digital photogrammetry and incorporated into a computational fluid dynamics (CFD) scheme by the application of a porosity algorithm. The predicted hydraulics determine the forces acting on each particle enabling the particle trajectory to be solved by Langrangian transport equations. The methodology demonstrates the importance of including complex topography in the numerical scheme as topographically induced hydraulic acceleration and deceleration affect both the transport mechanism and subsequent trajectory of the particle

Source

Thematical fascicle

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

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

Millesime : 2005, vol. 30, no 8 [pp. 1069-1076]

Bibliographic references : 28 ref.

Language

Anglais

Localisation

Laboratoire INTERGEO - Paris

INIST-CNRS, Cote INIST : 17355

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2006.
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