Barchan dunes in the lab

被引：16
|
作者：
Dauchot, O [1 ]
Lechénault, F [1 ]
Gasquet, C [1 ]
Daviaud, F [1 ]
机构：
[1] CEA Saclay, Serv Phys Etat Condense, F-91191 Gif Sur Yvette, France
来源：
COMPTES RENDUS MECANIQUE | 2002年 / 330卷 / 03期
关键词：
granular media; dunes; barchans;
D O I：
10.1016/S1631-0721(02)01447-X
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
We demonstrate the feasibility of studying dunes in a laboratory experiment. It is shown that an initial sand pile, under a wind flow carrying sand, flattens and gets a shape recalling barchan dunes. An evolution law is proposed for the profile and the summit of the dune. The dune dynamics is shown to be shape invariant. The invariant shape, the "dune function" is isolated. To cite this article: O. Dauchot et al., C R. Mecanique 330 (2002) 185-191. (C) 2002 Academie des sciences/Editions scientifiques et medicales Elsevier SAS.
引用
收藏
页码：185 / 191
页数：7
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