Three-dimensional turbulent relative dispersion by the Gledzer-Ohkitani-Yamada shell model

TY - JOUR

T1 - Three-dimensional turbulent relative dispersion by the Gledzer-Ohkitani-Yamada shell model

AU - Chakraborty, Sagar

AU - Jensen, Mogens Høgh

AU - Madsen, Bo S.

PY - 2010/1/13

Y1 - 2010/1/13

N2 - 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.

AB - 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.

U2 - 10.1103/PhysRevE.81.017301

DO - 10.1103/PhysRevE.81.017301

M3 - Journal article

C2 - 20365507

SN - 2470-0045

VL - 81

SP - 017301

JO - Physical Review E

JF - Physical Review E

IS - 1

ER -