An experimental adaptation of Higdon-type non-reflecting boundary conditions to linear first-order systems

JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS

卷:235

Article

Dea, John R.

关键词: Absorbing boundary conditions;    Maxwell equations;    Linearized shallow-water equations;    Linearized Euler equations;    Acoustic waves;    Finite differences;   

DOI  :  10.1016/j.cam.2010.08.023

来源: Elsevier

【 摘 要 】

Experiments in adapting the Higdon non-reflecting boundary condition (NRBC) method to linear 2-D first-order systems are presented. Finite difference implementations are developed for the free-space Maxwell equations, the linearized shallow-water equations with Coriolis, and the linearized Euler equations with uniform advection. This NRBC technique removes up to 99% of the reflection error generated by the Sommerfeld radiation condition with only a modest increase in computational overhead. Published by Elsevier By.

【 授权许可】

Free