The Boundary Element Method in Acoustics

Hybrid Boundary Element Method in Acoustics

The aim of the present paper is, to employ the Hybrid Stress Boundary Element Method for the computation of acoustic scattering and radiation in innnite domains. The introduced method is based on multi-eld variational principles and leads to symmetric matrices. Starting from Hellinger-Reissner's principle in the frequency domain a two-eld hybrid principle for acoustics is developed allowing for...

Time Domain Boundary Element Method for Room Acoustics

Fast Boundary Element Methods in Acoustics

Wave propagation problems play an important role, not only in the scientific community, but also in industry. Think of acoustic scattering, sound radiation and other related problems. A common feature of these problems is the large or even infinite extension of the acoustic domain compared to the rather limited extension of the surface of the embedded scatterer. The appropriateness of solving s...

Finite Element and Boundary Methods in Structural Acoustics and Vibration.

finite element and boundary methods in structural finite element and boundary methods in structural finite element and boundary methods in structural finite element and boundary methods in structural finite element and boundary methods in structural finite element and boundary methods in structural finite element and boundary methods in structural introduction to finite element vibration analys...

Robust Boundary Element Domain Decomposition Solvers in Acoustics

Tearing and interconnecting domain decomposition methods [ 2, 3] are well established for an efficient and parallel solution of various elliptic partial differential equations by using finite and boundary element methods. But in the case of the Helmholtz equation, additional difficulties may appear. Although the global boundary value problem admits a unique solution, local subdomain solvers as ...