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Random stretching December 7 , 2000 1 Overview

1 Overview In the previous lecture we emphasized that the destruction of tracer variance by molecular diffusivity relies on the increase of ∇c by stirring. Thus the term κ∇c ·∇c in the variance budget eventually becomes important, even though the molecular diffusivity κ is very small. One goal of this lecture is to understand in more detail how tracer gradients in a moving fluid are amplified b...

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Eddy diffusion December 7 , 2000 1 Introduction

Washington University Record, December 7, 1989

Washington University Record, December 7, 2006