Journal
NONLINEAR ANALYSIS-REAL WORLD APPLICATIONS
Volume 11, Issue 1, Pages 262-269Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.nonrwa.2008.10.057
Keywords
Fractional Fick's law; Riemann-Liouville fractional derivative; Anomalous diffusion; Fractional oscillator; Finite Hankel transformation
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Funding
- Natural Science Foundation of Shandong Province of China [Y2007A06]
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A generalized non-local Fick's law on fractal-dimension is derived. Using modified Fick's law a time-space fractional diffusion model with a fractional oscillator term is built. The solution is obtained in terms of Mittag-Leffler function using finite Hankel integral transformation and Laplace transformation. In addition, numerical simulations are discussed. The results show that the effect range of time-fractional derivative V on probability density is greater than that of fractional oscillator parameter P. The effect range of v on probability density is opposite to that of P. This paper provides a new analytical tool to develop fluid mechanics, heat conduction and other engineering science. (C) 2008 Elsevier Ltd. All rights reserved.
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