ISSN:
1434-6036
Schlagwort(e):
PACS. 45.70.-n Granular systems – 47.54.+r Pattern selection; pattern formation
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Physik
Notizen:
Abstract: Almost fifty years of investigations of barchan dunes morphology and dynamics is reviewed, with emphasis on the physical understanding of these objects. The characteristic quantities measured on the field (shape, size, velocity) and the physical problems they rise are presented. Then, we review the dynamical mechanisms explaining the formation and the propagation of dunes. In particular a complete and original approach of the sand transport over a flat sand bed is proposed and discussed. We conclude on open problems by outlining future research directions.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1140/epjb/e2002-00236-4
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