A NEW DISSIPATION TERM FOR FINITE-DIFFERENCE SIMULATIONS IN RELATIVITY

被引：0
|
作者：
Alic, D. [1 ]
Bona, C. [1 ]
Bona-Casas, C. [1 ]
机构：
[1] Univ Illes Balears, Dept Fis, Palma de Mallorca, Spain
来源：
SPANISH RELATIVITY MEETING, ERE2007: RELATIVISTIC ASTROPHYSICS AND COSMOLOGY | 2008年 / 30卷
关键词：
D O I：
10.1051/eas:0830029
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We present a new numerical dissipation algorithm, which can be efficiently used in combination with centered finite-difference methods. We start from a formulation of centered finite-volume methods for Numerical Relativity, in which third-order space accuracy can be obtained by employing just piecewise-linear reconstruction. We obtain a simplified version of the algorithm, which can be viewed as a centered finite-difference method plus some "adaptive dissipation". The performance of this algorithm is confirmed by numerical results obtained from 3D black hole simulations.
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页码：213 / 217
页数：5
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