An Efficient and Accurate Spectral Method for Acoustic Scattering in Elliptic Domains

• 作 者: Qirong Fang Jie Shen Li-Lian W
• 机 构: DepartmentofMathematics,DivisionofMathematicalSciences
• 出 处: 高等学校计算数学学报：英文版
• 发表日期: 2009年3期
• 关键词: 椭圆函数 声散射 光谱法 有效率 亥姆霍兹方程 聚四氟乙烯 数值结果 伽辽金 Acoustic scattering high-order methods
• 基金项目: Acknowledgments The work of Q. Fang and J. Shen is supported in part by NSF grant DMS-0610646, while the work of L. Wang is partially supported by AcRF Tier 1 Grant RG58/08, Singapore MOE Grant T207B2

<正>An efficient and accurate method for solving the two-dimensional Helmholtz equation in domains exterior to elongated obstacles is developed in this paper.The method is based on the so called transformed field expansion(TFE) coupled with a spectra