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Ripple and kink dynamics

H. Caps·N. Vandewalle
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Abstract

We propose a relevant modification of the Nishimori-Ouchi model [{\em Phys. Rev. Lett.} {\bf 71}, 197 (1993)] for granular landscape erosion. We explicitly introduce a new parameter: the angle of repose $θ_r$, and a new process: avalanches. We show that the $θ_r$ parameter leads to an asymmetry of the ripples, as observed in natural patterns. The temporal evolution of the maximum ripple height $h_{max}$ is limited and not linear, according to recent observations. The ripple symmetry and the kink dynamics are studied and discussed.

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H. Caps, N. Vandewalle. 2002-12-11. Ripple and kink dynamics. https://doi.org/10.1103/physreve.64.041302

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