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Connexion

(Article of periodic en Anglais - 1999)

Document title

Aeolian processes across transverse dunes. I : modelling the air flow

Authors(s) and Affiliation(s)

VAN BOXEL J.H. ; ARENS S.M. ; VAN DIJK P.M. ;

Abstract

This paper discusses a two-dimensional second-order closure model simulating air flow and turbulence across transverse dunes. Input parameters are upwind wind speed, topography of the dune ridge and surface roughness distribution over the ridge. The most important output is the distribution of the friction velocity over the surface. The simulated wind speeds resemble patterns observed during field experiments. In order to obtain realistic predictions of friction velocity it was essential to include equations for the turbulent variables in the model. In these equations streamline curvature is an important parameter

Source

Article of periodic

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

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

Millesime : 1999, vol. 24, no3 [pp. 255-270]

Bibliographic references : 50 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), 1999.
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