Nonlinear Dynamics of Aeolian Sand Ripples
Leonid Prigozhin
TL;DR
This paper investigates the nonlinear formation and evolution of aeolian sand ripples, proposing a continuous model that simulates ripple shapes and pattern dynamics, including ripple mergers and soliton-like interactions.
Contribution
It introduces a novel continuous model for sand ripple formation that captures asymmetric shapes and complex pattern evolution, including ripple mergers and interactions.
Findings
Simulated asymmetric ripple shapes accurately.
Observed ripple mergers and soliton-like interactions.
Provided insights into the nonlinear dynamics of sand ripples.
Abstract
We study the initial instability of flat sand surface and further nonlinear dynamics of wind ripples. The proposed continuous model of ripple formation allowed us to simulate the development of a typical asymmetric ripple shape and the evolution of sand ripple pattern. We suggest that this evolution occurs via ripple merger preceded by several soliton-like interaction of ripples.
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