Lévy Flights in Fluid Flows with no Kolmogorov-Arnold-Moser Surfaces
- 19 May 1997
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 78 (20) , 3864-3867
- https://doi.org/10.1103/physrevlett.78.3864
Abstract
We investigate the Lévy flights observed experimentally in the transport of tracers in a temporally irregular flow that has no Kolmogorov-Arnold-Moser surfaces, and show that the Lévy flights are due to the sticking of the tracers near the walls. The tracer is found to spread superdiffusively with an exponent , in reasonable agreement with the experiments.
Keywords
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