Importance of local pattern properties in spiral defect chaos

Egolf, D. A.; Melnikov, I. V.; Bodenschatz, E.

doi:10.1103/PhysRevLett.80.3228

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Importance of local pattern properties in spiral defect chaos

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Bodenschatz, E.
Laboratory for Fluid Dynamics, Pattern Formation and Biocomplexity, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society;

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Egolf, D. A., Melnikov, I. V., & Bodenschatz, E. (1998). Importance of local pattern properties in spiral defect chaos. Physical Review Letters, 80(15): 3228. doi:10.1103/PhysRevLett.80.3228.

Cite as: https://hdl.handle.net/21.11116/0000-0003-EC63-4

Abstract

analyze experimental data from Rayleigh-Bénard convection in a large aspect ratio cell using a new, efficient method applicable to disordered striped patterns from biological, chemical, optical, and fluid systems. We present statistics of various local pattern properties such as the local wave-vector magnitude, local pattern orientation, and defect densities. Using these statistics, we provide quantitative evidence demonstrating that the stability boundaries derived for infinite systems are applicable to local patches within disordered patterns. We also present the first experimental observation of multiple length scales within spiral defect chaos.