Zeitschriftenartikel:
L. Nannen, A. Schädle:
"Hardy space infinite elements for Helmholtz-type problems with unbounded inhomogeneities";
Wave Motion,
48
(2011),
2;
S. 116
- 129.
Kurzfassung englisch:
This paper introduces a class of approximate transparent boundary conditions for the solution of Helmholtz-type resonance and scattering problems on unbounded domains. The computational domain is assumed to be a polygon. A detailed description of two variants of the Hardy space infinite element method which relies on the pole condition is given. The method can treat waveguide-type inhomogeneities in the domain with non-compact support. The results of the Hardy space infinite element method are compared to a perfectly matched layer method. Numerical experiments indicate that the approximation error of the Hardy space decays exponentially in the number of Hardy space modes.
Schlagworte:
Helmholtz equation; Resonance; Scattering; Transparent boundary condition; Non-reflecting boundary condition; Pole condition; Hardy space; Infinite element method
"Offizielle" elektronische Version der Publikation (entsprechend ihrem Digital Object Identifier - DOI)
http://dx.doi.org/10.1016/j.wavemoti.2010.09.004
Erstellt aus der Publikationsdatenbank der Technischen Universität Wien.