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류동수

Ryu, Dongsu
Astrophysics Lab.
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Equation of state in numerical relativistic hydrodynamics

Author(s)
Ryu, DongsuChattopadhyay, IndranilChoi, Eunwoo
Issued Date
2006-09
DOI
10.1086/505937
URI
https://scholarworks.unist.ac.kr/handle/201301/18494
Fulltext
http://iopscience.iop.org/0067-0049/166/1/410
Citation
ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, v.166, no.1, pp.410 - 420
Abstract
Relativistic temperature of gas raises the issue of the equation of state (EOS) in relativistic hydrodynamics. We study the EOS for numerical relativistic hydrodynamics, and propose a new EOS that is simple and yet approximates very closely the EOS of the single-component perfect gas in relativistic regime. We also discuss the calculation of primitive variables from conservative ones for the EOSs considered in the paper, and present the eigenstructure of relativistic hydrodynamics for a general EOS, in a way that they can be used to build numerical codes. Tests with a code based on the total variation diminishing (TVD) scheme are presented to highlight the differences induced by different EOSs
Publisher
IOP PUBLISHING LTD
ISSN
0067-0049
Keyword (Author)
hydrodynamicsmethods : numericalrelativity
Keyword
VARIATION DIMINISHING SCHEMEPIECEWISE PARABOLIC METHODRIEMANN PROBLEMFLOWSDYNAMICSSOLVERJETSCODEGAS

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