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Chaotic advection, diffusion, and reactions in open flows

Journal Article · · Chaos (Woodbury, N. Y.)
DOI:https://doi.org/10.1063/1.166478· OSTI ID:20215587
 [1];  [2];  [3];  [4];  [5];  [6];  [3]
  1. Institute for Theoretical Physics, Eoetvoes University, P.O. Box 32, H-1518 Budapest, (Hungary)
  2. Department of Civil Engineering Mechanics, Technical University of Budapest, Mueegyetem rpk. 3, H-1521 Budapest, (Hungary)
  3. Marine Physical Laboratory, Scripps Institution of Oceanography, University of California at San Diego, La Jolla, California 92093-0238 (United States)
  4. Department of Plant Taxonomy and Ecology, Research Group of Ecology and Theoretical Biology, Eoetvoes University, Ludovika ter 2, H-1083 Budapest, (Hungary)
  5. Department of Physics, University of Maryland, College Park, Maryland 20742-4111 (United States)
  6. Institute for Plasma Research, University of Maryland, College Park, Maryland 20742 (United States)
+ Show Author Affiliations
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.
OSTI ID:
20215587
Journal Information:
Chaos (Woodbury, N. Y.), Journal Name: Chaos (Woodbury, N. Y.) Journal Issue: 1 Vol. 10; ISSN CHAOEH; ISSN 1054-1500
Country of Publication:
United States
Language:
English

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Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ADVECTION
CHEMICAL REACTIONS
DIFFUSION
FLOW MODELS
FRACTALS
THEORETICAL DATA
VISCOUS FLOW