MG11 |
Participant |
Thornburg, Jonathan | |
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Institution |
Max-Planck-Institut fuer Gravitationsphysik, Albert-Einstein-Institut - Am Muehlenberg 1 - Golm - - GERMANY | |
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Session |
Talk |
Abstract |
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CM4 |
LEGO Excision |
Excision is a common technique for avoiding singularities when numerically simulating black hole spacetimes. When using a Cartesisn grid topology, a "LEGO(TM) sphere" excision surface must be used to preserve causality. In this paper we discuss several families of LEGO excision algorithms, and compare their accuracy and stability properties on a variety of test cases. ~ |