The HLLD Riemann solver based on magnetic field decomposition method for the numerical simulation of magneto-hydrodynamics

	The HLLD Riemann solver based on magnetic field decomposition method for the numerical simulation of magneto-hydrodynamics
	Guo, Xiaocheng; Florinski, Vladimir; Wang, Chi
刊名	JOURNAL OF COMPUTATIONAL PHYSICS
	2016
卷号	327 页码:543-552
关键词	HLLD MHD Riemann solver Numerical simulation Magnetosphere
ISSN号	0021-9991
通讯作者	Guo, XC (reprint author), Chinese Acad Sci, Natl Space Sci Ctr, State Key Lab Space Weather, Beijing 100190, Peoples R China.
英文摘要	By splitting magnetic field into two components (internal plus external), we derived an extended formulation of the HLLD Riemann solver for numerical simulation of magneto-hydrodynamics (MHD). This new solver is backward compatible with the standard HLLD Riemann solver when the external component of the magnetic field is zero. Moreover, the solver is more robust than the standard HLLD solver in applications to low plasma beta (the ratio between thermal and magnetic pressures) cases, where the thermal pressure may become negative from subtracting the kinetic and large magnetic energy from the large total energy density in a Godunov type numerical scheme. Our numerical tests show that the extended HLLD solver works well for the cases of magnetic field decomposition, and maintains high resolution similar to the standard HLLD. (C) 2016 Elsevier Inc. All rights reserved.
收录类别	SCI
语种	英语
内容类型	期刊论文
源URL	[http://ir.nssc.ac.cn/handle/122/5636]
专题	国家空间科学中心_空间科学部
推荐引用方式 GB/T 7714	Guo, Xiaocheng,Florinski, Vladimir,Wang, Chi. The HLLD Riemann solver based on magnetic field decomposition method for the numerical simulation of magneto-hydrodynamics[J]. JOURNAL OF COMPUTATIONAL PHYSICS,2016,327:543-552.
APA	Guo, Xiaocheng,Florinski, Vladimir,&Wang, Chi.(2016).The HLLD Riemann solver based on magnetic field decomposition method for the numerical simulation of magneto-hydrodynamics.JOURNAL OF COMPUTATIONAL PHYSICS,327,543-552.
MLA	Guo, Xiaocheng,et al."The HLLD Riemann solver based on magnetic field decomposition method for the numerical simulation of magneto-hydrodynamics".JOURNAL OF COMPUTATIONAL PHYSICS 327(2016):543-552.