@Article{JCM-36-70, author = {Gimperlein , HeikoƖzdemir , Ceyhun and Stephan , Ernst P.}, title = {Time Domain Boundary Element Methods for the Neumann Problem: Error Estimates and Acoustic Problems}, journal = {Journal of Computational Mathematics}, year = {2018}, volume = {36}, number = {1}, pages = {70--89}, abstract = {

We investigate time domain boundary element methods for the wave equation in $\mathbb{R}^3$, with a view towards sound emission problems in computational acoustics. The Neumann problem is reduced to a time dependent integral equation for the hypersingular operator, and we present a priori and a posteriori error estimates for conforming Galerkin approximations in the more general case of a screen. Numerical experiments validate the convergence of our boundary element scheme and compare it with the numerical approximations obtained from an integral equation of the second kind. Computations in a half-space illustrate the influence of the reflection properties of a flat street.

}, issn = {1991-7139}, doi = {https://doi.org/10.4208/jcm.1610-m2016-0494}, url = {http://global-sci.org/intro/article_detail/jcm/10583.html} }