Cascadic Multigrid in a Spectral-Element Context |
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| Authors: | Immo Huismann Jörg Stiller Jochen Fröhlich |
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| Institution: | 1. Institute of Fluid Mechanics, TU Dresden;2. Institute of Fluid Mechanics, TU Dresden
Center for Advancing Electronics Dresden (cfaed) |
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| Abstract: | Current research in computational fluid dynamics focuses on high-order methods, which offer a significant reduction of the computational effort for a given error bound. In low-order methods optimal complexity solvers for elliptic equations, e.g. the Helmholtz equation, are readily available, but for high-order methods these are still an area of research. This work evaluates the effectiveness of the Cascadic Multigrid Method in the context of spectral elements, comparing it to a standard Krylov subspace solver. (© 2016 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim) |
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