par Vlad, Mǎdǎlina;Spineanu, Florin;Misguich, Jacques 
;Balescu, Radu
Référence Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics, 66, 3
Publication Publié, 2002-09
;Balescu, Radu Référence Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics, 66, 3
Publication Publié, 2002-09
Lettre à l'éditeur
| Résumé : | We agree with the results presented in the previous Comment [Phys. Rev. E 66, 038301 (2002)] concerning the equality, at any time moment, of the average Lagrangian and Eulerian velocities in two-dimensional incompressible stochastic velocity fields. We show that this statistical invariance is the effect of a complex nonlinear process that determines particle trapping and a compensatory acceleration of the nontrapped particles. We discuss the possibility of developing the decorrelation trajectory method which is able to describe the process of trapping but not the statistical acceleration. © 2002 The American Physical Society. |
