Constraint propagation and constraint-damping in the c2-Adjusted formulation

Takuya Tsuchiya*, Gen Yoneda, Hisa Aki Shinkai

*この研究の対応する著者

研究成果: Paper査読

抄録

In order to perform accurate and stable long-term numerical calculations, we con- struct new sets of ADM and BSSN evolution equations by adjusting constraints to their right-hand-sides. We apply a method suggested by Fiske (2004), which adds functional derivative of the norm of constraints, C 2. We derive their constraint prop- Agation equations (evolution equations of constraints) in at spacetime, which show that C2 itself evolve decaying. We also perform numerical tests with the polarized Gowdy-wave testbed, and show that the constraint-damping appears. The life-times of the standard ADM and BSSN simulations are improved as about twice as longer.

本文言語English
ページ126-129
ページ数4
出版ステータスPublished - 2011 1 1
イベント21st Workshop on General Relativity and Gravitation in Japan, JGRG 2011 - Sendai, Japan
継続期間: 2011 9 262011 9 29

Conference

Conference21st Workshop on General Relativity and Gravitation in Japan, JGRG 2011
国/地域Japan
CitySendai
Period11/9/2611/9/29

ASJC Scopus subject areas

  • 原子分子物理学および光学

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