@Article{CiCP-11-472,
author = {Bernd Flemisch, Manfred Kaltenbacher, Simon Triebenbacher and Barbara Wohlmuth},
title = {Non-Matching Grids for a Flexible Discretization in Computational Acoustics},
journal = {Communications in Computational Physics},
year = {2012},
volume = {11},
number = {2},
pages = {472--488},
abstract = {<p style="text-align: justify;">Flexible discretization techniques for the approximative solution of coupled
wave propagation problems are investigated. In particular, the advantages of using
non-matching grids are presented, when one subregion has to be resolved by a substantially finer grid than the other subregion. We present the non-matching grid technique for the case of a mechanical-acoustic coupled as well as for acoustic-acoustic coupled systems. For the first case, the problem formulation remains essentially the same
as for the matching situation, while for the acoustic-acoustic coupling, the formulation
is enhanced with Lagrange multipliers within the framework of Mortar Finite Element
Methods. The applications will clearly demonstrate the superiority of the Mortar Finite Element Method over the standard Finite Element Method both concerning the
flexibility for the mesh generation as well as the computational time.</p>},
issn = {1991-7120},
doi = {https://doi.org/10.4208/cicp.141209.280810s},
url = {http://global-sci.org/intro/article_detail/cicp/7373.html}
}