Numerical simulation of time variable fractional order mobile–immobile advection–dispersion model based on an efficient hybrid numerical method with stability and convergence analysis

H.R. Marasi and M.H. Derakhshan

Mathematics and Computers in Simulation (MATCOM), 2023, vol. 205, issue C, 368-389

Abstract: In this paper, we propose a hybrid numerical method based on the weighted finite difference and the quintic Hermite collocation methods. The proposed method is used for solving the variable-order time fractional mobile–immobile advection–dispersion(VOMIM-AD) model, such that the discretization is done by applying collocation method with Hermite splines in the spatial direction and weighted finite difference method in the temporal direction. Provided examples confirm the studied stability and convergence properties of the proposed method. The obtained results from the graphical illustration and numerical simulations, in comparison with other methods in the literature, demonstrate that the reported method is very robust and accurate.

Keywords: VOMIM-AD model; Weighted finite difference method; Quintic Hermite collocation method; Convergence and stability analysis; Variable fractional order mobile–immobile advection–dispersion model (search for similar items in EconPapers)
Date: 2023
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Persistent link: https://EconPapers.repec.org/RePEc:eee:matcom:v:205:y:2023:i:c:p:368-389

DOI: 10.1016/j.matcom.2022.09.020

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