Dispersion in first passage time for biased diffusion
- 21 August 1986
- journal article
- editorial
- Published by IOP Publishing in Journal of Physics A: General Physics
- Vol. 19 (12) , 2461-2463
- https://doi.org/10.1088/0305-4470/19/12/030
Abstract
This comment presents Monte Carlo simulations of first passage times for biased diffusion on randomly dilute lattices, as a model for hydrodynamic dispersion. The calculated distributions show non-monotonic curves and non-monotonic derivatives. Possibly there is a simple exponential decay for large times. Fourier transformations demonstrate no 1/f frequency dependence.Keywords
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