Skip to content

Chaotic advection in three-dimensional unsteady incompressible laminar flow

Julyan H. E. Cartwright, Mario Feingold, Oreste Piro

chao-dynarXiv:chao-dyn/9504012

Abstract

We discuss chaotic advection in three-dimensional unsteady incompressible laminar flow, and analyse in detail the most important novel advection phenomenon in these flows; the global dispersion of passive scalars in flows with two slow and one fast velocity components. We make a comprehensive study of the first model of an experimentally realizable flow to exhibit this resonance-induced\/ dispersion: biaxial unsteady spherical Couette flow is a three-dimensional incompressible laminar flow with periodic time dependence derived analytically from the Navier--Stokes equations in the low-Reynolds-number limit.

Create a lesson