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奇异摄动伯格斯方程的二阶鲁棒有限差分法。

Second-order robust finite difference method for singularly perturbed Burgers' equation.

作者信息

Kabeto Masho Jima, Duressa Gemechis File

机构信息

Department of Mathematics, Jimma University, Jimma, Ethiopia.

出版信息

Heliyon. 2022 May 31;8(6):e09579. doi: 10.1016/j.heliyon.2022.e09579. eCollection 2022 Jun.

DOI:10.1016/j.heliyon.2022.e09579
PMID:35928437
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9344322/
Abstract

In this paper, a second-order robust method for solving singularly perturbed Burgers' equation were presented. To find the numerical approximation, we apply the quasilinearization technique before formulation of the scheme. The obtained experimental results show that the presented method has better numerical accuracy and convergence as compared to some existing methods in the literature. Thus, the present method provides an accurate solution and efficient to solve the singularly perturbed Burgers' equation.

摘要

本文提出了一种求解奇异摄动伯格斯方程的二阶鲁棒方法。为了找到数值近似解,我们在构建格式之前应用拟线性化技术。所获得的实验结果表明,与文献中的一些现有方法相比,本文提出的方法具有更好的数值精度和收敛性。因此,本文方法为求解奇异摄动伯格斯方程提供了一种精确且高效的解决方案。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8535/9344322/bc97e8f4ecd3/gr002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8535/9344322/962969065519/gr001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8535/9344322/bc97e8f4ecd3/gr002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8535/9344322/962969065519/gr001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8535/9344322/bc97e8f4ecd3/gr002.jpg

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本文引用的文献

1
Accelerated nonstandard finite difference method for singularly perturbed Burger-Huxley equations.奇异摄动 Burger-Huxley 方程的加速非标准有限差分方法。
BMC Res Notes. 2021 Dec 11;14(1):446. doi: 10.1186/s13104-021-05858-4.
2
Accurate numerical scheme for singularly perturbed parabolic delay differential equation.奇异摄动抛物型时滞微分方程的精确数值格式。
BMC Res Notes. 2021 Sep 15;14(1):358. doi: 10.1186/s13104-021-05769-4.
3
Novel approach to solve singularly perturbed boundary value problems with negative shift parameter.
Heliyon. 2021 Jul 5;7(7):e07497. doi: 10.1016/j.heliyon.2021.e07497. eCollection 2021 Jul.