The shape of dunes

被引：45

作者：

Herrmann, HJ

Sauermann, G

机构：

[1] Univ Stuttgart, D-70569 Stuttgart, Germany

[2] Ecole Super Phys & Chim Ind, PMMH, F-75231 Paris 05, France

来源：

PHYSICA A | 2000年 / 283卷 / 1-2期

关键词：

granular media; aeolian transport; dunes; shape of a heap;

D O I：

10.1016/S0378-4371(00)00124-2

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present models to describe the dynamics of the surface of a dry granular bed, like a desert. These models, based on coupled differential equations can describe the formation and evolution of dunes. Field measurements have been performed to compare the numerical results. The concept of the Barchan dune as a soliton is disproved. We discuss in particular also the wind field and the microscopic coupling with the sand grains. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：24 / 30

页数：7