On the Uniform Accuracy of IMEX Runge-Kutta Schemes and Applications to Hyperbolic Systems with Relaxation

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  • Sebastiano Boscarino
  • Giovanni Russo

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https://doi.org/10.1685/

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In this paper we consider new Implicit-Explicit (IMEX) Runge-Kutta schemes for hyperbolic systems of conservation laws with stiff relaxation terms. The schemes were obtained by imposing additional order conditions to guarantee better accuracy over a wide range of the stiffness parameter ε. Numerical comparisons of the new schemes with some other schemes confirm an improvement of the accuracy for small values of ε. [DOI: 10.1685 / CSC06028] About DOI

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2007-10-01

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