In this paper we compare two time-domain BEM procedures applied to wave propagation analysis in layered media: the first comes from a classical weak formulation of the corresponding boundary integral equations, the second from a new "energetic" weak formulation which has a more robust theoretical background. Some numerical results will be presented, pointing out structural and conditioning properties of the derived linear systems. A numerical analysis of the two approximation procedures stability is carried out, too.
Numerical results of one-dimensional wave propagation analysis in layered media / A. Aimi, A. Carini, M. Diligenti, C. Guardasoni - In: Advances in Boundary Element Techniques (BETEQ), VIII / [a cura di] V. Minutolo, M.H. Aliabadi. - [s.l] : EC, Ltd., 2007. - ISBN 0-9547783-4-0. - pp. 1-6 (( Intervento presentato al 8. convegno Boundary Element Techniques (BETEQ) tenutosi a Napoli nel 2007.
Numerical results of one-dimensional wave propagation analysis in layered media
C. GuardasoniUltimo
2007
Abstract
In this paper we compare two time-domain BEM procedures applied to wave propagation analysis in layered media: the first comes from a classical weak formulation of the corresponding boundary integral equations, the second from a new "energetic" weak formulation which has a more robust theoretical background. Some numerical results will be presented, pointing out structural and conditioning properties of the derived linear systems. A numerical analysis of the two approximation procedures stability is carried out, too.
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