Volume 653, September 2021
|Number of page(s)||12|
|Section||Numerical methods and codes|
|Published online||29 September 2021|
Special relativistic hydrodynamics with CRONOS
Institut für Astro- und Teilchenphysik, University of Innsbruck, 6020 Innsbruck, Austria
e-mail: email@example.com, firstname.lastname@example.org
Accepted: 21 July 2021
We describe the special relativistic extension of the CRONOS code, which has been used for studies of gamma-ray binaries in recent years. The code was designed to be easily adaptable, allowing the user to easily change existing functionalities or introduce new modules tailored to the problem at hand. Numerically, the equations are treated using a finite-volume Godunov scheme on rectangular grids, which currently support Cartesian, spherical, and cylindrical coordinates. The employed reconstruction technique, the approximate Riemann solver, and the equation of state can be chosen dynamically by the user. Further, the code was designed with stability and robustness in mind, detecting and mitigating possible failures early on. We demonstrate the code’s capabilities on an extensive set of validation problems.
Key words: hydrodynamics / relativistic processes / methods: numerical
© ESO 2021
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