Pasive Scalar in a Wave Field

                                   by

                               Sasha Balk
              Department of Mathematics, University of Utah

                  INSCC 110, 3:30pm  Monday, 12 October 1998

                                Abstract

The passive scalar problem is considered in the case
when the velocity field is a superposition of random linear
waves. An equation for the average concentration of the passive
scalar is derived. Besides the diffusion term, with a second
derivative, this equation contains the dispersive term, with a
third derivative. The formulas for the coefficients of turbulent
diffusion and turbulent dispersion are derived. Both of them have
the fourth order with respect to wave amplitudes.

Requests for preprints and reprints to: Alexander Balk, balk@math.utah.edu