THE ROLE OF THE EQUATION OF STATE IN RESISTIVE RELATIVISTIC MAGNETOHYDRODYNAMICS

被引：19
|
作者：
Mizuno, Yosuke [1 ]
机构：
[1] Natl Tsing Hua Univ, Inst Astron, Hsinchu 30013, Taiwan
来源：
ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES | 2013年 / 205卷 / 01期
基金：
美国国家科学基金会;
关键词：
magnetohydrodynamics (MHD); methods: numerical; plasmas; relativistic processes; GAMMA-RAY BURSTS; NUMERICAL SCHEME; SIMULATIONS; MHD; HYDRODYNAMICS; RECONNECTION; INSTABILITY; WINDS; JETS; LAW;
D O I：
10.1088/0067-0049/205/1/7
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We have investigated the role of the equation of state in resistive relativistic magnetohydrodynamics using a newly developed resistive relativistic magnetohydrodynamic code. A number of numerical tests in one dimension and multi-dimensions are carried out in order to check the robustness and accuracy of the new code. The code passes all the tests in situations involving both small and large uniform conductivities. Equations of state that closely approximate the single-component perfect relativistic gas are introduced. Results from selected numerical tests using different equations of state are compared. The main conclusion is that the choice of the equation of state as well as the value of the electric conductivity can result in considerable dynamical differences in simulations involving shocks, instabilities, and magnetic reconnection.
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页数：15
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