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Data-driven Modeling of the Solar Corona by a New Three-dimensional Path-conservative Osher-Solomon MHD Model
Feng, Xueshang; Li, Caixia; Xiang, Changqing; Zhang, Man; Li, HuiChao; Wei, Fengsi; Feng, XS (reprint author), Chinese Acad Sci, Natl Space Sci Ctr, State Key Lab Space Weather, SIGMA Weather Grp, Beijing 100190, Peoples R China.; Feng, XS (reprint author), Univ Chinese Acad Sci, Coll Earth Sci, Beijing 100049, Peoples R China.; Feng, XS (reprint author), HIT Inst Space Sci & Appl Technol, Shenzhen 518055, Peoples R China.
作者部门空间科学部
发表期刊ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
2017
卷号233期号:1页码:10
ISSN0067-0049
语种英语
关键词Magnetohydrodynamics (Mhd) Sun: Corona
摘要A second-order path-conservative scheme with a Godunov-type finite-volume method has been implemented to advance the equations of single-fluid solar wind plasma magnetohydrodynamics (MHD) in time. This code operates on the six-component composite grid system in three-dimensional spherical coordinates with hexahedral cells of quadrilateral frustum type. The generalized Osher-Solomon Riemann solver is employed based on a numerical integration of the path-dependent dissipation matrix. For simplicity, the straight line segment path is used, and the path integral is evaluated in a fully numerical way by a high-order numerical Gauss-Legendre quadrature. Besides its very close similarity to Godunov type, the resulting scheme retains the attractive features of the original solver: it is nonlinear, free of entropy-fix, differentiable, and complete, in that each characteristic field results in a different numerical viscosity, due to the full use of the MHD eigenstructure. By using a minmod limiter for spatial oscillation control, the path-conservative scheme is realized for the generalized Lagrange multiplier and the extended generalized Lagrange multiplier formulation of solar wind MHD systems. This new model that is second order in space and time is written in the FORTRAN language with Message Passing Interface parallelization and validated in modeling the time-dependent large-scale structure of the solar corona, driven continuously by Global Oscillation Network Group data. To demonstrate the suitability of our code for the simulation of solar wind, we present selected results from 2009 October 9 to 2009 December 29 show its capability of producing a structured solar corona in agreement with solar coronal observations.
收录类别SCI
文献类型期刊论文
条目标识符http://ir.nssc.ac.cn/handle/122/6123
专题空间科学部
通讯作者Feng, XS (reprint author), Chinese Acad Sci, Natl Space Sci Ctr, State Key Lab Space Weather, SIGMA Weather Grp, Beijing 100190, Peoples R China.; Feng, XS (reprint author), Univ Chinese Acad Sci, Coll Earth Sci, Beijing 100049, Peoples R China.; Feng, XS (reprint author), HIT Inst Space Sci & Appl Technol, Shenzhen 518055, Peoples R China.
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GB/T 7714
Feng, Xueshang,Li, Caixia,Xiang, Changqing,et al. Data-driven Modeling of the Solar Corona by a New Three-dimensional Path-conservative Osher-Solomon MHD Model[J]. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,2017,233(1):10.
APA Feng, Xueshang.,Li, Caixia.,Xiang, Changqing.,Zhang, Man.,Li, HuiChao.,...&Feng, XS .(2017).Data-driven Modeling of the Solar Corona by a New Three-dimensional Path-conservative Osher-Solomon MHD Model.ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,233(1),10.
MLA Feng, Xueshang,et al."Data-driven Modeling of the Solar Corona by a New Three-dimensional Path-conservative Osher-Solomon MHD Model".ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES 233.1(2017):10.
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