Patterns in hydraulic ripples with binary granular mixtures
Statistical Mechanics
2016-08-31 v2 Soft Condensed Matter
Abstract
An experimental study of a binary granular mixture submitted to a transient shear flow in a cylindrical container is reported. The formation of ripples with a spiral shape is observed. The appearance of phase segregation in those spiral patterns is shown. The relative grain size bewteen sand species is found to be a relevant parameter leading to phase segregation. However, the relative repose angle is an irrelevant parameter. The formation of sedimentary structures is also presented. They result from a ripple climbing process. The ``sub-critical'' or ``super-critical'' character of the lamination patterns is shown to depend on the rotation speed of the container.
Cite
@article{arxiv.cond-mat/0112089,
title = {Patterns in hydraulic ripples with binary granular mixtures},
author = {H. Caps and N. Vandewalle},
journal= {arXiv preprint arXiv:cond-mat/0112089},
year = {2016}
}
Comments
9 pages, 9 figures, LateX (using elsart package), submitted to Phys. A