In the algorithm,non uniform meshes and three kinds of ABCs are adopted to reduce the order of the final sparse matrix equation,and compressed storage and fast iterative solver are applied to solve the sparse matrix equation.

• 在结构离散化过程中采用了非均匀网格剖分并且在网格截断边界上联合采用了三种吸收边界条件 ；以最大限度地压缩形成的稀疏矩阵的阶数 .；对稀疏矩阵方程采用压缩存储技术和快速迭代解法；以有效地减少所需内存和计算时间