Transient Space-fractional Diffusion with a Power-law Superdiffusivity : Approximate Integral-balance Approach

• Autorzy: Hristov J.

Identyfikatory

DOI

10.3233/FI-2017-1498

• Języki publikacji: EN

Abstrakty

EN

This paper focuses on an approximate analytical solution of an initial-boundary value problem of spatial-fractional partial differential diffusion equation with RiemannLiouville fractional derivative in space. The spatial correlation of the superdiffusion coefficient as a power-law has been discussed in cases of fast and slow spatial superdiffusion. Approximate closed form solutions in terms of non-linear similarity variable are based on the integral-balance method and series expansion of the assumed parabolic profile with undefined exponent. The law of the spatial and temporal propagation of the solution was the primary issue and discussed in two cases: fast and slow superdiffussion.

Słowa kluczowe

EN

approximate analytical solution; integral-balance method; spatial-fractional diffusion equation

• Wydawca: IOS Press
• Czasopismo: Fundamenta Informaticae
• Rocznik: 2017
• Tom: Vol. 151, nr 1/4
• Strony: 371--388
• Opis fizyczny: Bibliogr. 55 poz., tab., wykr.

Twórcy

autor

Hristov J.

• Department of Chemical Engineering, University of Chemical Technology and Metallurgy, Sofia 1756, 8 Kliment Ohridsky, blvd. Bulgaria

Bibliografia

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