Chaotic advection, diffusion, and reactions in open flows

T Tel, G Karolyi, A Pentek, I Scheuring, Z Toroczkai, C Grebogi, J Kadtke

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55 Citations (Scopus)

Abstract

We review and generalize recent results on advection of particles in open time-periodic hydrodynamical flows. First, the problem of passive advection is considered, and its fractal and chaotic nature is pointed out. Next, we study the effect of weak molecular diffusion or randomness of the flow. Finally, we investigate the influence of passive advection on chemical or biological activity superimposed on open flows. The nondiffusive approach is shown to carry some features of a weak diffusion, due to the finiteness of the reaction range or reaction velocity. (C) 2000 American Institute of Physics. [S1054-1500(00)02001-2].

Original languageEnglish
Pages (from-to)89-98
Number of pages10
JournalChaos
Volume10
Issue number1
DOIs
Publication statusPublished - Mar 2000

Keywords

  • open hydrodynamical flows
  • leapfrogging vortex pairs
  • 2-dimensional turbulence
  • point vortices
  • random maps
  • velocity-field
  • fluid-flows
  • scattering
  • system
  • boundaries

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