A Robust, Performance-Portable Discontinuous Galerkin Method for Relativistic Hydrodynamics

@article{Glines2022ARP,
  title={A Robust, Performance-Portable Discontinuous Galerkin Method for Relativistic Hydrodynamics},
  author={Forrest Wolfgang Glines and Kris Beckwith and Joshua R. Braun and Eric C. Cyr and Curtis C. Ober and Matthew T. Bettencourt and Keith L. Cartwright and Sidafa Conde and Sean T. Miller and Nicholas A. Roberds and Nathan V. Roberts and M. Scot Swan and Roger P. Pawlowski},
  journal={SSRN Electronic Journal},
  year={2022}
}
In this work, we present a discontinuous-Galerkin method for evolving relativistic hydrodynamics. We include an exploration of analytical and iterative methods to recover the primitive variables from the conserved variables for the ideal equation of state and the Taub-Matthews approximation to the Synge equation of state. We also present a new operator for enforcing a physically permissible conserved state at all basis points within an element while preserving the volume average of the… 

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