Calibration of moving puncture simulations
Calibration of moving puncture simulations
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DOI：
10.1103/physrevd.77.024027
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发表时间：
2006-10
影响因子：
5
通讯作者：
B. Bruegmann;José A. González;M. Hannam;S. Husa;U. Sperhake;W. Tichy
中科院分区：
文献类型：
--
作者：
B. Bruegmann;José A. González;M. Hannam;S. Husa;U. Sperhake;W. Tichy
我们提出了单一和二元黑洞模拟，遵循“移动穿刺”的范例模拟黑洞时空没有切除，并使用“移动盒子”网格细化。集中在二进制黑洞配置的模拟覆盖大约两个轨道，我们解决了五个主要问题，确定我们的结果的质量：数值离散化误差，辐射信号的有限提取半径，初始数据的物理适当性，规范的选择，和计算性能。我们还比较结果，我们已经获得了BAM码这里描述的独立的LEAN码。
We present single and binary black-hole simulations that follow the “moving-puncture” paradigm of simulating black-hole spacetimes without excision, and use “moving boxes” mesh refinement. Focusing on binary black-hole configurations where the simulations cover roughly two orbits, we address five major issues determining the quality of our results: numerical discretization error, finite extraction radius of the radiation signal, physical appropriateness of initial data, gauge choice, and computational performance. We also compare results we have obtained with the BAM code described here with the independent LEAN code.