dorsal/arxiv
View SchemaConvective Fingering of an Autocatalytic Reaction Front
| Authors | Michael R. Carey, Stephen W. Morris, Paul Kolodner |
|---|---|
| Categories | |
| ArXiv ID | patt-sol/9603003 |
| URL | https://arxiv.org/abs/patt-sol/9603003 |
| DOI | 10.1103/PhysRevE.53.6012 |
Abstract
We report experimental observations of the convection-driven fingering instability of an iodate-arsenous acid chemical reaction front. The front propagated upward in a vertical slab; the thickness of the slab was varied to control the degree of instability. We observed the onset and subsequent nonlinear evolution of the fingers, which were made visible by a {\it p}H indicator. We measured the spacing of the fingers during their initial stages and compared this to the wavelength of the fastest growing linear mode predicted by the stability analysis of Huang {\it et. al.} [{\it Phys. Rev. E}, {\bf 48}, 4378 (1993), and unpublished]. We find agreement with the thickness dependence predicted by the theory.
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"abstract": "We report experimental observations of the convection-driven fingering\ninstability of an iodate-arsenous acid chemical reaction front. The front\npropagated upward in a vertical slab; the thickness of the slab was varied to\ncontrol the degree of instability. We observed the onset and subsequent\nnonlinear evolution of the fingers, which were made visible by a {\\it p}H\nindicator. We measured the spacing of the fingers during their initial stages\nand compared this to the wavelength of the fastest growing linear mode\npredicted by the stability analysis of Huang {\\it et. al.} [{\\it Phys. Rev. E},\n{\\bf 48}, 4378 (1993), and unpublished]. We find agreement with the thickness\ndependence predicted by the theory.",
"arxiv_id": "patt-sol/9603003",
"authors": [
"Michael R. Carey",
"Stephen W. Morris",
"Paul Kolodner"
],
"categories": [
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],
"doi": "10.1103/PhysRevE.53.6012",
"title": "Convective Fingering of an Autocatalytic Reaction Front",
"url": "https://arxiv.org/abs/patt-sol/9603003"
},
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