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The HLLD Riemann solver based on magnetic field decomposition method for the numerical simulation of magneto-hydrodynamics
Guo, Xiaocheng; Florinski, Vladimir; Wang, Chi; Guo, XC (reprint author), Chinese Acad Sci, Natl Space Sci Ctr, State Key Lab Space Weather, Beijing 100190, Peoples R China.
Department空间科学部
Source PublicationJOURNAL OF COMPUTATIONAL PHYSICS
2016
Volume327Pages:543-552
ISSN0021-9991
Language英语
KeywordHlld Mhd Riemann Solver Numerical Simulation Magnetosphere
AbstractBy 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.
Indexed BySCI
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/5636
Collection空间科学部
Corresponding AuthorGuo, XC (reprint author), Chinese Acad Sci, Natl Space Sci Ctr, State Key Lab Space Weather, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Guo, Xiaocheng,Florinski, Vladimir,Wang, Chi,et al. 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,&Guo, XC .(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.
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