摘要
讨论了求解无限区域内波动方程的人工边界条件问题。利用简单而方便的直接差分方法构造了两个新的人工边界条件。严格地证明了它们的稳定性及其与解析边界条件的相容性。数值结果表明,这些新的人工边界条件在计算中颇为有效。
We consider the problem of constructing artificial boundary conditions for the wave equation. Two new boundary conditions are presented directly by a difference approximation. The stability of these boundary conditions and their consistency with the analytical boundary conditions are proved. Numericl examples indicate that these boundary conditions work effectively.
出处
《计算物理》
CSCD
北大核心
1992年第4期469-472,共4页
Chinese Journal of Computational Physics
基金
国家自然科学基金
关键词
波动方程
边界条件
差分法
wave equation, difference method, artificial boundary condition, consistency, stability.
