Paper Info
Title
Fem-Bem Mortar Coupling For The Helmholtz Problem In Three Dimensions
Abstract
We present a FEM-BEM coupling strategy for time-harmonic acoustic scattering in media with variable sound speed. The coupling is realized with the aid of a mortar variable that is an impedance trace on the coupling boundary. The resulting sesquilinear form is shown to satisfy a Garding inequality. Quasi-optimal convergence is shown for sufficiently fine meshes. Numerical examples confirm the theoretical convergence results. (C) 2020 Elsevier Ltd. All rights reserved.
Year
DOI
Venue
2020
10.1016/j.camwa.2020.04.014
COMPUTERS & MATHEMATICS WITH APPLICATIONS
Keywords
DocType
Volume
Finite element method, Boundary element method, Mortar coupling, Helmholtz equation, Variable sound speed
Journal
80
Issue
ISSN
Citations 
11
0898-1221
0
PageRank 
References 
Authors
0.34
0
4
Name
Order
Citations
PageRank
Mascotto Lorenzo100.34
Jens Markus Melenk213324.18
Perugia Ilaria300.34
Rieder Alexander400.34