CAJ | 학술논문

在分析复杂媒质的电磁场散射特性时,引入有限元撕裂对接法,对包含复杂媒质在内的整个计算空间做区域分解,通过合理的代数运算,将一个三维问题转化为二维问题进行求解,减小计算的复杂度.使用Krylov求解器,避免在形成交界面系统方程时,系数矩阵中的求逆运算.两个算例结果表明有限元撕裂对接法在分析复杂媒质散射特性时的正确性和有效性.
재분석복잡매질적전자장산사특성시,인입유한원시렬대접법,대포함복잡매질재내적정개계산공간주구역분해,통과합리적대수운산,장일개삼유문제전화위이유문제진행구해,감소계산적복잡도.사용Krylov구해기,피면재형성교계면계통방정시,계수구진중적구역운산.량개산례결과표명유한원시렬대접법재분석복잡매질산사특성시적정학성화유효성.
Finite element tearing and interconnecting method(FETI)is used in analyzing electromagnetic scattering of complex medium.It decomposes computational space and complex medium.With reasonable operations of algebra,a 3D problem is changed to a 2D problem.It reduces computational complexity.By using Krylov solver,computation of reverse matrix is avoid in the equation about interface system. Numerical results show that the method is accurate and efficient for electromagnetic scattering of complex medium.