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MAGNETOHYDRODYNAMIC MODELING OF SOLAR SYSTEM PROCESSES ON GEODESIC GRIDS
V. Florinski; X. Guo; D. S. Balsara; C. Meyer; 北京8701信箱
Department空间天气学国家重点实验室
Source PublicationThe Astrophysical Journal
2013
Volume205Issue:2Pages:19
ISSN0004-640X
Language英语
KeywordMagnetohydrodynamics (Mhd) Methods: Numerical Planets And Satellites: Magnetic Fields Solar Wind
AbstractThis 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.
Funding Project中国科学院空间科学与应用研究中心
Document Type期刊论文
Version出版稿
Identifierhttp://ir.nssc.ac.cn/handle/122/1493
Collection空间科学部
Corresponding Author北京8701信箱
Recommended Citation
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,&北京8701信箱.(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.
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