A simple model of aeolian megaripples

H. Yizhaq

doi:10.1016/j.physa.2004.02.044

A simple model of aeolian megaripples

H. Yizhaq

Department of Physics

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

Abstract

We discuss a simple mathematical model for the formation of aeolian megaripples. The main idea is that the sediment consists of a mixture of grains with two different sizes and that the wind is not strong enough to cause the coarse fraction to saltate. Linear stability analysis indicates the presence of two maxima in the growth rate of the unstable modes. The gravest mode corresponds to megaripples and the other to "standard" aeolian ripples.

Original language	English
Pages (from-to)	211-217
Number of pages	7
Journal	Physica A: Statistical Mechanics and its Applications
Volume	338
Issue number	1-2 SPEC. ISS.
DOIs	https://doi.org/10.1016/j.physa.2004.02.044
State	Published - 1 Jul 2004

Keywords

Megaripples
Reptation
Saltation
Sand ripples

ASJC Scopus subject areas

Statistics and Probability
Condensed Matter Physics

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10.1016/j.physa.2004.02.044

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AB - We discuss a simple mathematical model for the formation of aeolian megaripples. The main idea is that the sediment consists of a mixture of grains with two different sizes and that the wind is not strong enough to cause the coarse fraction to saltate. Linear stability analysis indicates the presence of two maxima in the growth rate of the unstable modes. The gravest mode corresponds to megaripples and the other to "standard" aeolian ripples.

KW - Megaripples

KW - Reptation

KW - Saltation

KW - Sand ripples

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JF - Physica A: Statistical Mechanics and its Applications

IS - 1-2 SPEC. ISS.

ER -

A simple model of aeolian megaripples

Abstract

Keywords

ASJC Scopus subject areas

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