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Multidimensional characteristic Galerkin methods for hyperbolic systems

✍ Scribed by S. Ostkamp

Publisher: John Wiley and Sons
Year: 1997
Tongue: English
Weight: 204 KB
Volume: 20
Category: Article
ISSN: 0170-4214
DOI: 10.1002/(sici)1099-1476(19970910)20:13<1111::aid-mma903>3.0.co;2-1

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✦ Synopsis

Communicated by W. To¨rnig

We consider characteristic Galerkin methods for the solution of hyperbolic systems of partial differential equations of first order. A new recipe for the construction of approximate evolution operators is given in order to derive consistent methods. With the help of semigroup theory we derive error estimates for classes of characteristic Galerkin methods. The theory is applied to the wave equation and also to the Euler equations of gas dynamics. In the latter case one can show that Fey's genuinely multidimensional method can be reinterpreted as a characteristic Galerkin method.

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