A Krylov Space-Based Finite Element Time Domain Method for Broadband Frequency Domain Solutions

• 作者: Weiyang Lin
• 来源期刊: 声学期刊(英文)
• 学科: 数学
• 关键词: Time DOMAIN Method Krylov Space FREQUENCY DOMAIN Petrov GALERKIN
• 年，卷（期）: 2017,（4）
• 页码范围: 95-104
• 页数: 10页
• 分类号: O1

摘要

A Krylov space based time domain method for wave propagation problems is introduced. The proposed method uses the Arnoldi algorithm to obtain broad-band frequency domain solutions. This method is especially advantageous in cases where slow convergence is observed when using traditional time domain methods. The efficiency of the method is examined in several test cases to show its fast convergence in such problems.