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Defect turbulence and generalized statistical mechanics

Karen E. Daniels·Christian Beck·Eberhard Bodenschatz
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Abstract

We present experimental evidence that the motion of point defects in thermal convection patterns in an inclined fluid layer is well-described by Tsallis statistics with an entropic index $q \approx 1.5$. The dynamical properties of the defects (anomalous diffusion, shape of velocity distributions, power law decay of correlations) are in good agreement with typical predictions of nonextensive models, over a range of driving parameters.

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Karen E. Daniels, Christian Beck, Eberhard Bodenschatz. 2003-02-28. Defect turbulence and generalized statistical mechanics. https://doi.org/10.1016/j.physd.2004.01.033

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