Spiral Defect Chaos in Large Aspect Ratio Rayleigh-Benard Convection
patt-sol
2009-10-22 v3 chao-dyn
Chaotic Dynamics
Pattern Formation and Solitons
Abstract
We report experiments on convection patterns in a cylindrical cell with a large aspect ratio. The fluid had a Prandtl number of approximately 1. We observed a chaotic pattern consisting of many rotating spirals and other defects in the parameter range where theory predicts that steady straight rolls should be stable. The correlation length of the pattern decreased rapidly with increasing control parameter so that the size of a correlated area became much smaller than the area of the cell. This suggests that the chaotic behavior is intrinsic to large aspect ratio geometries.
Keywords
Cite
@article{arxiv.patt-sol/9305005,
title = {Spiral Defect Chaos in Large Aspect Ratio Rayleigh-Benard Convection},
author = {Stephen W. Morris and Eberhard Bodenschatz and David S. Cannell and Guenter Ahlers},
journal= {arXiv preprint arXiv:patt-sol/9305005},
year = {2009}
}
Comments
Preprint of experimental paper submitted to Phys. Rev. Lett. May 12 1993. Text is preceeded by many TeX macros. Figures 1 and 2 are rather long