title: Three-dimensional turbulent relative dispersion by the Gledzer-Ohkitani-Yamada shell model.
abstract: We study pair dispersion in a three-dimensional incompressible high Reynolds number turbulent flow generated by Fourier transforming the dynamics of the Gledzer-Ohkitani-Yamada (GOY) shell model into real space. We show that GOY shell model can successfully reproduce both the Batchelor and the Richardson-Obukhov regimes of turbulent relative dispersion. We also study how the crossover time scales with the initial separations of a particle pair and compare it to the prediction by Batchelor.
authors.affiliation: Niels Bohr International Academy, Copenhagen Ø, Denmark. sagar@nbi.dk
authors.forename: Sagar
authors.initials: S
authors.lastname: Chakraborty
authors.forename: Mogens H
authors.initials: MH
authors.lastname: Jensen
authors.forename: Bo S
authors.initials: BS
authors.lastname: Madsen