Iharm3D is an open-source C code for simulating black hole accretion systems in arbitrary stationary spacetimes using ideal general-relativistic magnetohydrodynamics (GRMHD). It is an implementation of the HARM ("High Accuracy Relativistic Magnetohydrodynamics") algorithm outlined in Gammie et al. (2003) with updates as outlined in McKinney & Gammie (2004) and Noble et al. (2006). The code is most directly derived from Ryan et al. (2015) but with radiative transfer portions removed. HARM is a conservative finite-volume scheme for solving the equations of ideal GRMHD, a hyperbolic system of partial differential equations, on a logically Cartesian mesh in arbitrary coordinates.
@article{arxiv.2110.10191,
title = {Iharm3D: Vectorized General Relativistic Magnetohydrodynamics},
author = {Ben S. Prather and George N. Wong and Vedant Dhruv and Benjamin R. Ryan and Joshua C. Dolence and Sean M. Ressler and Charles F. Gammie},
journal= {arXiv preprint arXiv:2110.10191},
year = {2021}
}
Comments
4 pages, 2 figures. Associated code at https://github.com/AFD-Illinois/iharm3d