An analysis of and a comparison between the discontinuous Galerkin and the spectral finite volume methods |
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Affiliation: | 1. Department of Mathematics, University of Science and Technology of China, Hefei, Anhui 230026, PR China;2. Division of Applied Mathematics, Brown University, Providence, RI 02912, USA |
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Abstract: | The discontinuous Galerkin method has been developed and applied extensively to solve hyperbolic conservation laws in recent years. More recently Wang et al. developed a class of discontinuous Petrov–Galerkin method, termed spectral (finite) volume method J. Comput. Phys. 78 (2002) 210; J. Comput. Phys. 179 (2002) 665; J. Sci. Comput. 20 (2004) 137]. In this paper we perform a Fourier type analysis on both methods when solving linear one-dimensional conservation laws. A comparison between the two methods is given in terms of accuracy, stability, and convergence. Numerical experiments are performed to validate this analysis and comparison. |
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