LEVY STATISTICS IN TAYLOR DISPERSION

Authors
COMPTE A CAMACHO J
Citation
A. Compte et J. Camacho, LEVY STATISTICS IN TAYLOR DISPERSION, Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics, 56(5), 1997, pp. 5445-5449
Citations number
25
Categorie Soggetti
Physycs, Mathematical","Phsycs, Fluid & Plasmas
Journal title
Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics → ACNP
ISSN journal
1063651X
Volume
56
Issue
5
Year of publication
1997
Part
A
Pages
5445 - 5449
Database
ISI
SICI code
1063-651X(1997)56:5<5445:LSITD>2.0.ZU;2-P
Abstract
The longitudinal dispersion for a fractal time random walker being dra gged by a solvent flowing through a tube is studied by means of the La ngevin and Fokker-Planck formalisms. One observes that for asymptotic long times the dispersion is superdiffusive despite the fact that in a resting background the characteristic diffusion regime is subdiffusiv e. The resulting behavior is also at variance with the standard diffus ive behavior obtained in Taylor dispersion for a Brownian walker.