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PORTAIL D'INFORMATION GÉOGRAPHIQUE

Near-bed mass flux profiles in aeolian sand transport : high-resolution measurements in a wind tunnel

Auteur :
BUTTERFIELD, G.R.

Description :
Vertical profiles of the streamwise mass flux of blown sand in the near-bed (<17 mm) region are analysed from high-resolution measurements made using an optical sensor in a wind tunnel. This analysis is complemented by detailed measurements of mass flux and mean velocity profiles throughout the boundary layer depth (0.17 m) using passive, chambered sand traps of small dimensions and armoured thermal anemometers, respectively. The data permit a preliminary analysis of the relations between the observed forms of the profiles of near-bed fluid stress and horizontal mass flux within a carefully conditioned boundary layer.


Type de document :
Article de périodique

Source :
Earth surface processes and landforms, issn : 0197-9337, 1999, vol. 24, n°. 5, p. 393-412, Collation : Illustration, Références bibliographiques : 60 ref.

Date :
1999

Editeur :
Pays édition : Royaume-Uni, Chichester, Wiley

Langue :
Anglais
Droits :
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