Notes about Passive Scalar in Large-Scale Velocity Field
chao-dyn
2009-10-31 v1 Statistical Mechanics
Chaotic Dynamics
Fluid Dynamics
Abstract
We consider advection of a passive scalar theta(t,r) by an incompressible large-scale turbulent flow. In the framework of the Kraichnan model the whole PDF's (probability distribution functions) for the single-point statistics of theta and for the passive scalar difference theta(r_1)-theta(r_2) (for separations r_1-r_2 lying in the convective interval) are found.
Cite
@article{arxiv.chao-dyn/9810019,
title = {Notes about Passive Scalar in Large-Scale Velocity Field},
author = {I. Kolokolov and V. Lebedev and M. Stepanov},
journal= {arXiv preprint arXiv:chao-dyn/9810019},
year = {2009}
}
Comments
19 pages, RevTeX