Persistent holes in a fluid
斑图形成与孤子
2009-11-10 v1
摘要
We observe stable holes in a vertically oscillated 0.5 cm deep aqueous suspension of cornstarch for accelerations a above 10g. Holes appear only if a finite perturbation is applied to the layer. Holes are circular and approximately 0.5 cm wide, and can persist for more than 10^5 cycles. Above a = 17g the rim of the hole becomes unstable producing finger-like protrusions or hole division. At higher acceleration, the hole delocalizes, growing to cover the entire surface with erratic undulations. We find similar behavior in an aqueous suspension of glass microspheres.
引用
@article{arxiv.nlin/0311026,
title = {Persistent holes in a fluid},
author = {Florian S. Merkt and Robert D. Deegan and Daniel I. Goldman and Erin C. Rericha and Harry L. Swinney},
journal= {arXiv preprint arXiv:nlin/0311026},
year = {2009}
}
备注
4 pages, 6 figures