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Article

Passive Scalar Convection in 2D Long-Range Delta-correlated Velocity Field. Exact results

Journal of Physics A: Mathematical and Theoretical. 1994. Vol. 27. No. 14. P. 4925- 4932.
Kolokolov I., Chertkov M., Fedorov Y.

The paper presents a new field-theoretical approach to a 2D passive scalar advected by long-range random delta-correlated-in-time velocity field. The Gaussian form of the distribution for the stretching rate of a passive scalar cloud is derived and its parameters are found explicitly.