期刊
ENTROPY
卷 24, 期 7, 页码 -出版社
MDPI
DOI: 10.3390/e24071002
关键词
fractional calculus; Caputo derivative; Mittag-Leffler function; time-harmonic impact; quasi-steady state; finite Hankel transform
This paper studies the axisymmetric time-fractional diffusion equation with mass absorption using the Caputo derivative. It discusses different formulations of the problem for integer values of the time-derivatives and employs the integral transform technique. The numerical calculations are illustrated graphically for different parameter values.
The axisymmetric time-fractional diffusion equation with mass absorption is studied in a circle under the time-harmonic Dirichlet boundary condition. The Caputo derivative of the order 0 < alpha <= 2 is used. The investigated equation can be considered as the time-fractional generalization of the bioheat equation and the Klein-Gordon equation. Different formulations of the problem for integer values of the time-derivatives alpha = 1 and alpha = 2 are also discussed. The integral transform technique is employed. The outcomes of numerical calculations are illustrated graphically for different values of the parameters.
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