An efficient second-order model reduction enhanced by H-LU for the finite element method full-wave electromagnetic simulations

作者：Li Mengmeng; Chen Rushan^*; Wan Ting; Feng Kun

来源：Microwave and Optical Technology Letters, 2012, 54(2): 292-296.

DOI：10.1002/mop.26526

• finite element method
• model order reduction
• H-LU decomposition

A hierarchical LU(H-LU) decomposition-based direct method enhanced second-order Krylov subspace projection-based model order reduction (MOR) is presented. The construction of the projection matrix is the most important process in the Krylov subspace projection-based MOR, where an inverse of the sparse matrix is involved in the construction of the projection matrix. It will be intractable for the computational capacity of a personal computer when the size of the problem is large. A H-LU decomposition-based direct method is used to the MOR with almost linear complexity. Numerical results demonstrate the validity of the proposed algorithm.

• 出版日期2012-2
• 单位南京大学