Formation of aeolian ripples and sand sorting.

Phys Rev E Stat Nonlin Soft Matter Phys

Department of Solar Energy and Environmental Physics, Blaustein Institutes for Desert Research, Ben Gurion University of the Negev, Sede Boqer Campus, 84990 Israel.

Published: March 2009

We present a continuous model capable of demonstrating some salient features of aeolian sand ripples: the realistic asymmetric ripple shape, coarsening of the ripple field at the nonlinear stage of ripple growth, saturation of ripple growth for homogeneous sand, typical size segregation of sand, and formation of armoring layers of coarse particles on ripple crests and windward slopes if the sand is inhomogeneous.

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http://dx.doi.org/10.1103/PhysRevE.79.031303DOI Listing

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