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arXiv · 0904.0493

Orbiting binary black hole evolutions with a multipatch high order finite-difference approach

Enrique Pazos·Manuel Tiglio·Matthew D. Duez·Lawrence E. Kidder·Saul A. Teukolsky
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Abstract

We present numerical simulations of orbiting black holes for around twelve cycles, using a high-order multipatch approach. Unlike some other approaches, the computational speed scales almost perfectly for thousands of processors. Multipatch methods are an alternative to AMR (adaptive mesh refinement), with benefits of simplicity and better scaling for improving the resolution in the wave zone. The results presented here pave the way for multipatch evolutions of black hole-neutron star and neutron star-neutron star binaries, where high resolution grids are needed to resolve details of the matter flow.

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Enrique Pazos, Manuel Tiglio, Matthew D. Duez, Lawrence E. Kidder, Saul A. Teukolsky. 2009-04-03. Orbiting binary black hole evolutions with a multipatch high order finite-difference approach. https://doi.org/10.1103/physrevd.80.024027

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