dorsal/arxiv
View SchemaRotating Rayleigh-B\'enard Convection: Aspect Ratio Dependence of the Initial Bifurcations
| Authors | Li Ning, Robert E. Ecke |
|---|---|
| Categories | |
| ArXiv ID | patt-sol/9303001 |
| URL | https://arxiv.org/abs/patt-sol/9303001 |
| DOI | 10.1103/PhysRevE.47.3326 |
Abstract
The initial bifurcations in rotating Rayleigh-B\'enard convection are studied in the range of dimensionless rotation rate $0 < \Omega < 2150$ for an aspect-ratio-2.5 cylindrical cell. We used simultaneous optical shadowgraph, heat transport and local temperature measurements to determine the stability and characteristics of the azimuthally-periodic wall convection state. We also show that the second transition corresponds to the onset of bulk convection. Our results for critical Rayleigh numbers, precession frequencies and critical mode numbers agree well with theoretical results. The dynamics of the wall convection state can be described by a complex Ginzburg-Landau amplitude equation.
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"abstract": "The initial bifurcations in rotating Rayleigh-B\\\u0027enard convection are studied\nin the range of dimensionless rotation rate $0 \u003c \\Omega \u003c 2150$ for an\naspect-ratio-2.5 cylindrical cell. We used simultaneous optical shadowgraph,\nheat transport and local temperature measurements to determine the stability\nand characteristics of the azimuthally-periodic wall convection state. We also\nshow that the second transition corresponds to the onset of bulk convection.\nOur results for critical Rayleigh numbers, precession frequencies and critical\nmode numbers agree well with theoretical results. The dynamics of the wall\nconvection state can be described by a complex Ginzburg-Landau amplitude\nequation.",
"arxiv_id": "patt-sol/9303001",
"authors": [
"Li Ning",
"Robert E. Ecke"
],
"categories": [
"patt-sol",
"nlin.PS"
],
"doi": "10.1103/PhysRevE.47.3326",
"title": "Rotating Rayleigh-B\\\u0027enard Convection: Aspect Ratio Dependence of the Initial Bifurcations",
"url": "https://arxiv.org/abs/patt-sol/9303001"
},
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