Exponential tails and random advection
- 10 June 1991
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 66 (23), 2984-2987
- https://doi.org/10.1103/physrevlett.66.2984
Abstract
A simple phenomenological model for a passive scalar subject to a mean gradient and undergoing random advection plus molecular mixing yields an exponential distribution as a consequence of general analytic properties of the steady-state solution. The result persists in the presence of a coherent mean flow. Experimental realizations of our model are proposed.Keywords
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