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- W4287757789 abstract "In this paper we study the stability of explicit finite difference discretizations of linear advection-diffusion equations (ADE) with arbitrary order of accuracy in the context of method of lines. The analysis first focuses on the stability of the system of ordinary differential equations (ODE) that is obtained by discretizing the ADE in space and then extends to fully discretized methods where explicit Runge-Kutta methods are used for integrating the ODE system. In particular, it is proved that all stable semi-discretization of the ADE gives rise to a conditionally stable fully discretized method if the time-integrator is at least first-order accurate, whereas high-order spatial discretization of the advection equation cannot yield a stable method if the temporal order is too low. In the second half of this paper, we extend the analysis to a partially dissipative wave system and obtain the stability results for both semi-discretized and fully-discretized methods. Finally, the major theoretical predictions are verified numerically." @default.
- W4287757789 created "2022-07-26" @default.
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- W4287757789 date "2020-06-14" @default.
- W4287757789 modified "2023-09-26" @default.
- W4287757789 title "On the Stability of Explicit Finite Difference Methods for Advection-Diffusion Equations" @default.
- W4287757789 doi "https://doi.org/10.48550/arxiv.2006.07799" @default.
- W4287757789 hasPublicationYear "2020" @default.
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