黑洞吸积广义相对论磁流体力学模拟的数值技术发展与应用
高能天体物理现象
2019-06-25 v1
摘要
我们描述了在 Athena++ 代码框架中实现用于广义相对论磁流体力学模拟的先进数值技术。相对于许多现有代码的改进包括使用先进的 Riemann 解算器和交错网格约束传输。结合对计算性能和并行可扩展性的考量，这些使我们能够以空前精度研究黑洞吸积流。通过探索磁 arrested 盘（magnetically arrested disks）展示了该代码的能力。
引用
@article{arxiv.1906.09708,
title = {Development and Application of Numerical Techniques for General-Relativistic Magnetohydrodynamics Simulations of Black Hole Accretion},
author = {Christopher J. White},
journal= {arXiv preprint arXiv:1906.09708},
year = {2019}
}
备注
PhD thesis from 2016. 99 pages, 46 figures. A more succinct but less complete presentation of methods can be found in arXiv:1511.00943. More recent and improved application results can be found in arXiv:1903.01509. It is hoped this document can be a pedagogical resource for anyone wishing to understand the details involved in GRMHD codes. Caveat lector: there may well be typos in some formulas