首页> 外文期刊>Applied Computational Electromagnetics Society journal >Effective Preconditioners for the Solution of Hybrid FEM/MoM Matrix Equations using Combined Formulations
【24h】

Effective Preconditioners for the Solution of Hybrid FEM/MoM Matrix Equations using Combined Formulations

机译:使用组合公式求解混合FEM / MoM矩阵方程的有效预处理器

获取原文
获取原文并翻译 | 示例
           

摘要

Hybrid FEM/MoM modeling codes generate large systems of equations that are generally solved using inward-looking, outward-looking or combined formulations. For many types of problems, the combined formulation is preferred because it does not require a direct inversion of the coefficient matrices and can be solved using iterative solution techniques. An effective preconditioner is a crucial part of the solution process in order to guarantee convergence. However, it can be difficult to generate effective, memory-efficient preconditioners for large problems. This paper investigates preconditioners that use the FEM solution and an absorbing boundary condition (ABC). Various techniques are explored to reduce the memory required by the preconditioner while maintaining effectiveness. Practical problems are presented to evaluate the effectiveness of these preconditioners in various situations.
机译:混合FEM / MoM建模代码生成大型方程组,通常使用向内看,向外看或组合公式来求解。对于许多类型的问题,首选组合公式,因为它不需要系数矩阵的直接求逆,并且可以使用迭代求解技术解决。有效的预处理器是解决过程中至关重要的部分,以确保收敛。但是,可能很难为大型问题生成有效的,内存有效的预处理器。本文研究了使用FEM解决方案和吸收边界条件(ABC)的预处理器。探索了各种技术来减少预处理器所需的内存,同时保持有效性。提出了实际问题以评估这些预处理器在各种情况下的有效性。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号