期刊名称：Lecture Notes in Engineering and Computer Science
印刷版ISSN：2078-0958
电子版ISSN：2078-0966
出版年度：2022
卷号：52
期号：1
语种：English
出版社：Newswood and International Association of Engineers
摘要：In this paper, the classical two-dimensionalHelmholtz transmission problem is reduced to a local boundaryvalue problem by introducing an artificial boundary. A localizedDirichlet-to-Neumann (DtN) mapping is defined on the artifi-cial boundary. Then the variational equations and Galerkinformulation are derived. The effectiveness of the methods isdemonstrated using various numerical examples.
