Entropy convergence of new two-value scheme with slope relaxation for conservation laws |
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Authors: | Yue Wang Jiequan Li |
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Institution: | 1. Institute of Applied Physics and Computational Mathematics, Beijing 100094, China;
2. Laboratory of Computational Physics, Institute of Applied Physics and Computational Mathematics, Beijing 100094, China |
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Abstract: | This paper establishes the entropy convergence of a new two-value high resolution finite volume scheme with slope relaxation for conservation laws. This scheme, motivated by the general method of high resolution schemes that have high-order accuracy in smooth regions of solutions and are free of oscillations near discontinuities, unifies and evolves slopes directly with a slope relaxation equation that governs the evolution of slopes in both smooth and discontinuous regions. Proper choices of slopes are realized adaptively via a relaxation parameter. The scheme is shown to be total-variation-bounded (TVB) stable and satisfies cell-entropy inequalities. |
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Keywords: | two-value scheme slope relaxation conservation law |
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