Reverse undercompressive shock structures in driven thin film flow
Soft Condensed Matter
2009-11-07 v1
Abstract
We show experimental evidence of a new structure involving an undercompressive and reverse undercompressive shock for draining films driven by a surface tension gradient against gravity. The reverse undercompressive shock is unstable to transverse perturbations while the leading undercompressive shock is stable. Depending on the pinch-off film thickness, as controlled by the meniscus, either a trailing rarefaction wave or a compressive shock separates from the reverse undercompressive shock.
Keywords
Cite
@article{arxiv.cond-mat/0206119,
title = {Reverse undercompressive shock structures in driven thin film flow},
author = {Jeanman Sur and Andrea L. Bertozzi and Robert P. Behringer},
journal= {arXiv preprint arXiv:cond-mat/0206119},
year = {2009}
}