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Godunov method: a generalization using piecewise polynomial approximations. (English. Russian original) Zbl 1329.76180

Differ. Equ. 51, No. 7, 895-903 (2015); translation from Differ. Uravn. 51, No. 7, 899-907 (2015).
Summary: We show that the schemes of the Galerkin discontinuous method can be treated as a generalization of the Godunov method to piecewise polynomial functions. Using the problem on the interaction of a shock wave with an entropy perturbation as an example, we obtain nearly second order accuracy in the wake of the shock wave.

MSC:

76M10 Finite element methods applied to problems in fluid mechanics
65M60 Finite element, Rayleigh-Ritz and Galerkin methods for initial value and initial-boundary value problems involving PDEs
76N15 Gas dynamics (general theory)
76L05 Shock waves and blast waves in fluid mechanics
Full Text: DOI

References:

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