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Two-Species Continuum Model for Aeolian Sand Ripples

Hoyle, Rebecca B. and Mehta, Anita (1999) Two-Species Continuum Model for Aeolian Sand Ripples Physical Review Letters, 83 (24). pp. 5170-5173. ISSN 0031-9007

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Abstract

We formulate a continuum model for aeolian sand ripples consisting of two species of grains: a lower layer of relatively immobile clusters, with an upper layer of highly mobile grains moving on top. We predict analytically the ripple wavelength, initial ripple growth rate, and threshold saltation flux for ripple formation. Numerical simulations show the evolution of realistic ripple profiles from initial surface roughness via ripple growth and merger.

Item Type: Article
Additional Information: Published in Physical Review Letters, 83, 5170-5173. © 1999 The American Physical Society.
Divisions: Faculty of Engineering and Physical Sciences > Mathematics
Depositing User: Mr Adam Field
Date Deposited: 27 May 2010 14:40
Last Modified: 23 Sep 2013 18:33
URI: http://epubs.surrey.ac.uk/id/eprint/1438

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