Addition of tabulated equation of state and neutrino leakage support to illinoisgrmhd
Addition of tabulated equation of state and neutrino leakage support to illinoisgrmhd
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DOI：
10.1103/physrevd.107.044037
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发表时间：
2022-08
影响因子：
5
通讯作者：
Leonardo R. Werneck;Z. Etienne;A. Murguia-Berthier;R. Haas;F. Cipolletta;S. Noble;Lorenzo Ennoggi
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作者：
Leonardo R. Werneck;Z. Etienne;A. Murguia-Berthier;R. Haas;F. Cipolletta;S. Noble;Lorenzo Ennoggi
我们通过一种泄漏方案为伊利诺伊广义相对论磁流体动力学（IllinoisGRMHD）代码添加了对实际的、微观物理的、有限温度的物态方程（EOS）以及中微子物理的支持，伊利诺伊GRMHD是爱因斯坦工具包中用于动态时空的一个开源广义相对论磁流体动力学代码。这些新特性由两个基于NRPy +的新代码提供：NRPyEOS，它能高效地进行EOS表查找和插值；以及NRPyLeakage，它在爱因斯坦工具包中实现了一种新的、具备自适应网格细化（AMR）能力的中微子泄漏方案。我们进行了一系列严格的验证测试，证明了这些新代码的稳健性，特别是在Carpet提供的笛卡尔自适应网格细化网格上。此外，我们展示了单个无磁化中子星以及磁化双中子星并合的完全动态广义相对论磁流体动力学模拟的结果。这个新版本的伊利诺伊GRMHD，以及NRPyEOS和NRPyLeakage，在Jupyter笔记本中有教学文档记录，并且完全开源。这些代码将被提议纳入爱因斯坦工具包的一个即将发布的版本中。
We have added support for realistic, microphysical, finite-temperature equations of state (EOS) and neutrino physics via a leakage scheme to IllinoisGRMHD, an open-source GRMHD code for dynamical spacetimes in the Einstein Toolkit. These new features are provided by two new, NRPy+-based codes: NRPyEOS, which performs highly efficient EOS table lookups and interpolations, and NRPyLeakage, which implements a new, AMR-capable neutrino leakage scheme in the Einstein Toolkit. We have performed a series of strenuous validation tests that demonstrate the robustness of these new codes, particularly on the Cartesian AMR grids provided by Carpet. Furthermore, we show results from fully dynamical GRMHD simulations of single unmagnetized neutron stars, and magnetized binary neutron star mergers. This new version of IllinoisGRMHD, as well as NRPyEOS and NRPyLeakage, is pedagogically documented in Jupyter notebooks and fully open source. The codes will be proposed for inclusion in an upcoming version of the Einstein Toolkit.