Statistics of defect motion in spatiotemporal chaos in inclined layer convection
نویسندگان
چکیده
منابع مشابه
Statistics of defect motion in spatiotemporal chaos in inclined layer convection.
We report experiments on defect-tracking in the state of undulation chaos observed in thermal convection of an inclined fluid layer. We characterize the ensemble of defect trajectories according to their velocities, relative positions, diffusion, and gain and loss rates. In particular, the defects exhibit incidents of rapid transverse motion which result in power law distributions for a number ...
متن کاملDefect turbulence in inclined layer convection.
We report experimental results on the defect turbulent state of undulation chaos in inclined layer convection of a fluid with Prandtl number approximately 1. By measuring defect density and undulation wave number, we find that the onset of undulation chaos coincides with the theoretically predicted onset for stable, stationary undulations. At stronger driving, we observe a competition between o...
متن کاملStatistics of defect trajectories in spatio-temporal chaos in inclined layer convection and the complex Ginzburg-Landau equation.
For spatio-temporal chaos observed in numerical simulations of the complex Ginzburg-Landau equation (CGL) and in experiments on inclined-layer convection (ILC) we report numerical and experimental data on the statistics of defects and of defect loops. These loops consist of defect trajectories in space-time that are connected to each other through the pairwise annihilation or creation of the as...
متن کاملPattern formation in inclined layer convection
We report experiments on thermally driven convection in an inclined layer of large aspect ratio in a fluid of Prandtl number sigma approximately 1. We observed a number of new nonlinear, mostly spatiotemporally chaotic, states. At small angles of inclination we found longitudinal rolls, subharmonic oscillations, Busse oscillations, undulation chaos, and crawling rolls. At larger angles, in the ...
متن کاملSpatio-temporal patterns in inclined layer convection
Priya Subramanian1,2,†, Oliver Brausch3, Karen E. Daniels4, Eberhard Bodenschatz1, Tobias M. Schneider1,5 and Werner Pesch3 1Max-Planck Institute for Dynamics and Self-Organization, Göttingen 37077, Germany 2School of Mathematics, University of Leeds, Leeds LS2 9JT, UK 3Universität Bayreuth, Theoretische Physik I, Bayreuth 95447, Germany 4Department of Physics, North Carolina State University, ...
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ژورنال
عنوان ژورنال: Chaos: An Interdisciplinary Journal of Nonlinear Science
سال: 2003
ISSN: 1054-1500,1089-7682
DOI: 10.1063/1.1536330