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arXiv · 0811.1691

Towards a gauge-polyvalent Numerical Relativity code

Daniela Alic·Carles Bona·Carles Bona-Casas
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Abstract

The gauge polyvalence of a new numerical code is tested, both in harmonic-coordinate simulations (gauge-waves testbed) and in singularity-avoiding coordinates (simple Black-Hole simulations, either with or without shift). The code is built upon an adjusted first-order flux-conservative version of the Z4 formalism and a recently proposed family of robust finite-difference high-resolution algorithms. An outstanding result is the long-term evolution (up to 1000M) of a Black-Hole in normal coordinates (zero shift) without excision.

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Daniela Alic, Carles Bona, Carles Bona-Casas. 2009-02-10. Towards a gauge-polyvalent Numerical Relativity code. https://doi.org/10.1103/physrevd.79.044026

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