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.
Soviet Journal of Experimental and Theoretical Physics
- Pub Date:
- March 1999
- Nonlinear Sciences - Chaotic Dynamics;
- Condensed Matter - Statistical Mechanics;
- Physics - Fluid Dynamics
- 19 pages, RevTeX