Dynamics and Selection of Giant Spirals in Rayleigh-Benard Convection

Details Dynamics and Selection of Giant Spirals in Rayleigh-Benard Convection Dynamics and Selection of Giant Spirals in Rayleigh-Benard Convection

1998-08-07

arxiv.org/abs/patt-sol/9808003v1

Nonlinear Sciences

Pattern Formation and Solitons

Scientific paper

10.1103/PhysRevLett.81.5334

For Rayleigh-Benard convection of a fluid with Prandtl number \sigma \approx 1, we report experimental and theoretical results on a pattern selection mechanism for cell-filling, giant, rotating spirals. We show that the pattern selection in a certain limit can be explained quantitatively by a phase-diffusion mechanism. This mechanism for pattern selection is very different from that for spirals in excitable media.

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