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ID: 475380.0, MPI für Gravitationsphysik / Astrophysical Relativity
A new dissipation term for finite-difference simulations in Relativity
Authors:Alic, Daniela; Bona, Carles; Bona-Casas, Carles
Date of Publication (YYYY-MM-DD):2008
Title of Proceedings:Spanish Relativity Meeting - Encuentros Relativistas Españoles ERE2007 Relativistic Astrophysics and Cosmology Tenerife, Spring 2008
Start Page:213
End Page:218
Title of Series:EAS Publications Series
Volume (in Series):30
Name of Conference/Meeting:Spanish Relativity Meeting - Encuentros Relativistas Españoles ERE2007 Relativistic Astrophysics and Cosmology
Place of Conference/Meeting:Tenerife
(Start) Date of Conference/Meeting
 (YYYY-MM-DD):
2008
End Date of Conference/Meeting 
 (YYYY-MM-DD):
2008
Review Status:not specified
Audience:Not Specified
Abstract / Description: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.
External Publication Status:published
Document Type:Conference-Paper
Communicated by:Bernhard F. Schutz
Affiliations:MPI für Gravitationsphysik/Astrophysical Relativity
Identifiers:LOCALID:arXiv:0711.4685
DOI:10.1051/eas:0830029
Full Text:
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0711.4685v1.pdf  [88,00 Kb] [Comment:arXiv:0711.4685v1 [gr-qc]]  
 
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