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Erschienen in: Engineering with Computers 2/2022

09.08.2020 | Original Article

A numerical solution of time-fractional mixed diffusion and diffusion-wave equation by an RBF-based meshless method

verfasst von: Akanksha Bhardwaj, Alpesh Kumar

Erschienen in: Engineering with Computers | Ausgabe 2/2022

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Abstract

In this paper, we have developed an radial basis function (RBF) based meshless method to solve the time-fractional mixed diffusion and diffusion-wave equation which involves two fractional Caputo derivatives of order \(\alpha \in (0,1)\) and \(\beta \in (1,2)\). The unconditional stability of the proposed numerical scheme is discussed and proved theoretically. The time semi discretization has been done by using the finite difference method and for space discretization, we proposed an RBF-based local collocation method. Some test problems are considered for regular as well as an irregular domain with uniform and non-uniform points to validate the efficiency and accuracy of the method.

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Metadaten
Titel
A numerical solution of time-fractional mixed diffusion and diffusion-wave equation by an RBF-based meshless method
verfasst von
Akanksha Bhardwaj
Alpesh Kumar
Publikationsdatum
09.08.2020
Verlag
Springer London
Erschienen in
Engineering with Computers / Ausgabe 2/2022
Print ISSN: 0177-0667
Elektronische ISSN: 1435-5663
DOI
https://doi.org/10.1007/s00366-020-01134-4

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