Comparison between the shifted-Laplacian preconditioning and the controllability methods for computational acoustics

DOI10.1016/j.cam.2009.08.030zbMath1407.76093OpenAlexW2040429599WikidataQ110038844 ScholiaQ110038844MaRDI QIDQ975650

Tuomas Airaksinen, Sanna Mönkölä

Publication date: 10 June 2010

Published in: Journal of Computational and Applied Mathematics (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1016/j.cam.2009.08.030

zbMATH Keywords

exact controllabilityfinite element methodspectral element methodHelmholtz equationpreconditioneralgebraic multigrid methodcomputational acoustics

Mathematics Subject Classification ID

Multigrid methods; domain decomposition for boundary value problems involving PDEs (65N55) Control/observation systems governed by partial differential equations (93C20) Finite difference methods applied to problems in fluid mechanics (76M20) Finite element, Rayleigh-Ritz and Galerkin methods for boundary value problems involving PDEs (65N30) Hydro- and aero-acoustics (76Q05) Laplace operator, Helmholtz equation (reduced wave equation), Poisson equation (35J05)

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