Abstract
A multigrid method for solving hyperbolic partial differential equations is presented. A second order conservative discretisation of the differential equation is obtained by a cell vertex scheme which has been introduced by Ni [1]. For the smoothing iteration a truncated Lax-Wendroff scheme is applied. A frequency decomposition approach uses multiple coarse grid corrections and avoids the need for numerical dissipation. The coarse grid system is a modified Galerkin product. Numerical results for a two-grid iteration for a linear periodic initial value problem are presented. Convergence rates of 0.5 are observed. Convergence deteriorates when the characteristics are aligned with the grid.
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© 1991 Springer Basel AG
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Katzer, E. (1991). Multigrid Methods for Hyperbolic Equations. In: Hackbusch, W., Trottenberg, U. (eds) Multigrid Methods III. International Series of Numerical Mathematics / Internationale Schriftenreihe zur Numerischen Mathematik / Série Internationale d’Analyse Numérique, vol 98. Birkhäuser, Basel. https://doi.org/10.1007/978-3-0348-5712-3_18
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DOI: https://doi.org/10.1007/978-3-0348-5712-3_18
Publisher Name: Birkhäuser, Basel
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