MAGNETOHYDRODYNAMIC MODELING OF SOLAR SYSTEM PROCESSES ON GEODESIC GRIDS

	MAGNETOHYDRODYNAMIC MODELING OF SOLAR SYSTEM PROCESSES ON GEODESIC GRIDS
	V. Florinski ; X. Guo ; D. S. Balsara ; C. Meyer
刊名	The Astrophysical Journal
	2013
卷号	205 期号:2 页码:19
关键词	magnetohydrodynamics (MHD) methods: numerical planets and satellites: magnetic fields solar wind
ISSN号	0004-640X
通讯作者	北京8701信箱
中文摘要	This report describes a new magnetohydrodynamic numerical model based on a hexagonal spherical geodesic grid. The model is designed to simulate astrophysical flows of partially ionized plasmas around a central compact object, such as a star or a planet with a magnetic field. The geodesic grid, produced by a recursive subdivision of a base platonic solid (an icosahedron), is free from control volume singularities inherent in spherical polar grids. Multiple populations of plasma and neutral particles, coupled via charge–exchange interactions, can be simulated simultaneously with this model. Our numerical scheme uses piecewise linear reconstruction on a surface of a sphere in a local two-dimensional "Cartesian" frame. The code employs Haarten–Lax–van-Leer-type approximate Riemann solvers and includes facilities to control the divergence of the magnetic field and maintain pressure positivity. Several test solutions are discussed, including a problem of an interaction between the solar wind and the local interstellar medium, and a simulation of Earth's magnetosphere.
学科主题	空间物理
语种	英语
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.cssar.ac.cn/handle/122/1493]
专题	国家空间科学中心_空间科学部
推荐引用方式 GB/T 7714	V. Florinski,X. Guo,D. S. Balsara,et al. MAGNETOHYDRODYNAMIC MODELING OF SOLAR SYSTEM PROCESSES ON GEODESIC GRIDS[J]. The Astrophysical Journal,2013,205(2):19.
APA	V. Florinski,X. Guo,D. S. Balsara,&C. Meyer.(2013).MAGNETOHYDRODYNAMIC MODELING OF SOLAR SYSTEM PROCESSES ON GEODESIC GRIDS.The Astrophysical Journal,205(2),19.
MLA	V. Florinski,et al."MAGNETOHYDRODYNAMIC MODELING OF SOLAR SYSTEM PROCESSES ON GEODESIC GRIDS".The Astrophysical Journal 205.2(2013):19.