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Analytical travelling vortex solutions of hyperbolic equations for validating very high order schemes

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Abstract

Testing the order of accuracy of (very) high order methods for shallow water (and Euler) equations is a delicate operation and the test cases are the crucial starting point of this operation. We provide a short derivation of vortex-like analytical solutions in 2 dimensions for the shallow water equations (and, hence, Euler equations) that can be used to test the order of accuracy of numerical methods. These solutions have different smoothness in their derivatives (up to $\mathcal C^\infty$) and can be used accordingly to the order of accuracy of the scheme to test.
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hal-03508418 , version 1 (03-01-2022)

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Mario Ricchiuto, Davide Torlo. Analytical travelling vortex solutions of hyperbolic equations for validating very high order schemes. 2022. ⟨hal-03508418⟩
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