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A numerical approach to a 2D porous-medium mathematical model: Application to an atherosclerosis problem

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  • Hidalgo, Arturo
  • Tello, Lourdes

Abstract

This work deals with the study and implementation of a Local Space-Time DG ADER approach, in the finite volume framework with Weighted Essentially Non-Oscillatory (WENO) reconstruction in space, in the context of 2D porous media problems. The particular application performed concerns a biomedical problem dealing with the first stages of atherosclerosis disease, where the artery is considered as a porous medium, although the methodology described can be applied to other situations. The mathematical model on which this research is based is given by a system of two-dimensional nonlinear reaction-diffusion equations with a nonlinear source term in one of the equations, which is a variant of the model proposed originally in N. El Khatib, S. Genieys & V. Volpert (2007) Math. Model. Nat. Phenom., vol 2(2), pp. 126–141 [1]. The 2D model considered in this work has two main features: (i) the artery is taken as a porous medium and (ii) a nonlinear non-homogeneous Neumann boundary condition is incorporated, aimed to account for the recruitment of immune cells through the upper boundary, as a response to the production of cytokines. Certain theoretical properties of the stationary solutions and the evolution solution are stated and proved. Some of them are also verified with the numerical simulation results.

Suggested Citation

  • Hidalgo, Arturo & Tello, Lourdes, 2023. "A numerical approach to a 2D porous-medium mathematical model: Application to an atherosclerosis problem," Applied Mathematics and Computation, Elsevier, vol. 441(C).
    • Handle: RePEc:eee:apmaco:v:441:y:2023:i:c:s0096300322007433
    DOI: 10.1016/j.amc.2022.127675
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    References listed on IDEAS

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    1. Peter Libby, 2002. "Inflammation in atherosclerosis," Nature, Nature, vol. 420(6917), pages 868-874, December.
    2. Arturo Hidalgo & Lourdes Tello, 2022. "Modeling and Numerical Simulation of the Thermal Interaction between Vegetation Cover and Soil," Mathematics, MDPI, vol. 10(3), pages 1-17, January.
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