CaltechAUTHORS
  A Caltech Library Service

Defect Dynamics for Spiral Chaos in Rayleigh-Bénard Convection

Cross, M. C. and Tu, Yuhai (1995) Defect Dynamics for Spiral Chaos in Rayleigh-Bénard Convection. Physical Review Letters, 75 (5). pp. 834-837. ISSN 0031-9007. http://resolver.caltech.edu/CaltechAUTHORS:CROprl95a

[img]
Preview
PDF
See Usage Policy.

810Kb

Use this Persistent URL to link to this item: http://resolver.caltech.edu/CaltechAUTHORS:CROprl95a

Abstract

A theory of the novel spiral chaos state recently observed in Rayleigh-Bénard convection is proposed in terms of the importance of invasive defects, i.e., defects that through their intrinsic dynamics expand to take over the system. The motion of well developed spiral defects is dominated by wave vector frustration, rather than a rotational motion driven by a vertical vorticity field. This leads to a continuum of spiral frequencies, and a spiral may rotate in either sense depending on the wave vector of its local environment. Results of extensive numerical work on equations modeling the convection system provide confirmation of these ideas.


Item Type:Article
Additional Information:©1995 The American Physical Society Received 5 October 1994
Record Number:CaltechAUTHORS:CROprl95a
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:CROprl95a
Alternative URL:http://dx.doi.org/10.1103/PhysRevLett.75.834
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:2358
Collection:CaltechAUTHORS
Deposited By: Archive Administrator
Deposited On:29 Mar 2006
Last Modified:26 Dec 2012 08:48

Repository Staff Only: item control page