dorsal/arxiv
View SchemaHexagons, Kinks and Disorder in Oscillated Granular Layers
| Authors | Francisco Melo, Paul Umbanhowar, Harry L. Swinney |
|---|---|
| Categories | |
| ArXiv ID | patt-sol/9507003 |
| URL | https://arxiv.org/abs/patt-sol/9507003 |
| DOI | 10.1103/PhysRevLett.75.3838 |
Abstract
Experiments on vertically oscillated granular layers in an evacuated container reveal a sequence of well-defined pattern bifurcations as the container acceleration is increased. Period doublings of the layer center of mass motion and a parametric wave instability interact to produce hexagons and more complicated patterns composed of distinct spatial domains of different relative phase separated by kinks (phase discontinuities). Above a critical acceleration, the layer becomes disordered in both space and time.
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"abstract": "Experiments on vertically oscillated granular layers in an evacuated\ncontainer reveal a sequence of well-defined pattern bifurcations as the\ncontainer acceleration is increased. Period doublings of the layer center of\nmass motion and a parametric wave instability interact to produce hexagons and\nmore complicated patterns composed of distinct spatial domains of different\nrelative phase separated by kinks (phase discontinuities). Above a critical\nacceleration, the layer becomes disordered in both space and time.",
"arxiv_id": "patt-sol/9507003",
"authors": [
"Francisco Melo",
"Paul Umbanhowar",
"Harry L. Swinney"
],
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],
"doi": "10.1103/PhysRevLett.75.3838",
"title": "Hexagons, Kinks and Disorder in Oscillated Granular Layers",
"url": "https://arxiv.org/abs/patt-sol/9507003"
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