A possible counterexample to wellposedness of entropy solutions and to Godunov scheme convergence

Abstract

A particular case of initial data for the two-dimensional Euler equations is studied numerically. The results show that the Godunov method does not always converge to the physical solution, at least not on feasible grids. Moreover, they suggest that entropy solutions (in the weak entropy inequality sense) are not well-posed.

References in corpus (3)

• Vanishing Viscosity Solutions of Nonlinear Hyperbolic Systems
• The ellipticity principle for selfsimilar polytropic potential flow
• A Lax-Wendroff type theorem for unstructured quasiuniform grids

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