Year: 2002
Type: article
Abstract: We propose a minimal model for aeolian sand dunes. It combines an analytical description of the turbulent wind velocity field above the dune with a continuum saltation model that allows for saturation transients in the sand flux. The model provides a qualitative understanding of important features of real dunes, such as their longitudinal shape and aspect ratio, the formation of a slip face, the breaking of scale invariance, and the existence of a minimum dune size.
Source: Physical Review Letters
Authors: Klaus Kroy, Gerd Sauermann, Hans J. Herrmann
Institutions: Physique et Mécanique des Milieux Hétérogènes, ESPCI Paris
Language: English
Subfield: Earth-Surface Processes
Field: Earth and Planetary Sciences
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2141835281