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On the small-scale statistics of Lagrangian turbulence | Christian Beck
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18 May 2001 | Subject: | Fluid Dynamics; Statistical Mechanics | physics.flu-dyn cond-mat.stat-mech | Abstract: | We provide evidence that the small-scale statistics of the acceleration of a test particle in high-Reynolds number Lagrangian turbulence is correctly described by Tsallis statistics with entropic index q=3/2. We present theoretical arguments why Tsallis statistics can naturally arise in Lagrangian turbulence and why at the smallest scales q=3/2 is relevant. A generalized Heisenberg-Yaglom formula is derived from the nonextensive model. | Source: | arXiv, physics/0105058 | Services: | Forum | Review | PDF | Favorites |
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