Computing with large time steps in time-domain electromagnetics

被引：3

作者：

Makwana, Nikitabahen N. ^{[1
]}

Chatterjee, Avijit ^{[1
]}

机构：

[1] Indian Inst Technol, Dept Aerosp Engn, Bombay 400076, Maharashtra, India

来源：

JOURNAL OF ELECTROMAGNETIC WAVES AND APPLICATIONS | 2018年 / 32卷 / 17期

关键词：

Finite volume time-domain method; electromagnetics; Godunov's method; stability criteria; Riemann problem; HYPERBOLIC CONSERVATION-LAWS; SHALLOW-WATER EQUATIONS; MAXWELLS EQUATIONS; GODUNOV METHOD; SCHEME; EXTENSION;

D O I：

10.1080/09205071.2018.1500314

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The finite volume time-domain method is recast in a large time step (LTS) version to solve the time-domain Maxwell's equations. The LTS method allows the use of time steps much larger than that dictated by the Courant-Friedrich-Lewy criteria for numerical stability in a Godunov-based finite volume framework. Solutions can be obtained much faster and sometimes with higher accuracy compared to conventional time-stepping methods. Results are analyzed for electromagnetic wave propagation in 1 D and 2 D. Solutions are shown to remain unconditionally stable with an increase in the Courant number.

引用

页码：2182 / 2194

页数：13

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