摘要
本文由广义正变坐标系下的波动方程，通过微分算子的分解得到了两个单向波方程，利用差分近似方法得到广义正交坐标系下Mur二阶吸收边界条件，并与文献给出的直角和圆柱坐标系下的Mur二阶吸收边界条件进行了对比和补充．
By resolving the differential operator for the wave equation in Generalized Orthogonal Coordi-nates(GOC),two unidirectional wave equations are ohtained,and by using the central difference approximate method,Mur's absorbing boundary condition of second order in GOC is presented in this paper.The results are compared with those in orthogonal and cylinder coordinates.
出处
《电子学报》
EI
CAS
CSCD
北大核心
1998年第3期113-116,共4页
Acta Electronica Sinica
基金
航空科学基金
北京市新星计划资助
关键词
广义正交坐标系
FDTD
吸收边界条件
电波传播
Generalized orthogonal coordinates(GOC),FDTD,Absorbing boundary condition(ABC)
