title: Flow reversal in a simple dynamical model of turbulence.
abstract: In this Letter, we study a simple hydrodynamical model showing abrupt flow reversals at random times. For a suitable range of parameters, we show that the dynamics of flow reversal is accurately described by stochastic differential equations, where the noise represents the effect of turbulence.
authors.affiliation: Dipartimento di Fisica and INFN, Università di Roma "Tor Vergata", Via della Ricerca Scientifica 1, I-00133, Roma, Italy.
authors.forename: Roberto
authors.initials: R
authors.lastname: Benzi