Defect Turbulence in Inclined Layer Convection
نویسندگان
چکیده
منابع مشابه
Defect 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...
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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 ...
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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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We investigate a novel bursting state in inclined layer thermal convection in which convection rolls exhibit intermittent, localized, transverse bursts. With increasing temperature difference, the bursts increase in duration and number while exhibiting a characteristic wave number, magnitude, and size. We propose a mechanism which describes the duration of the observed bursting intervals and co...
متن کاملStatistics 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 ...
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ژورنال
عنوان ژورنال: Physical Review Letters
سال: 2002
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.88.034501