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An improved CESE method and its application to steady-state coronal structure simulation
Zhou YuFen; Feng XueShang; Zhou, YF (reprint author), Chinese Acad Sci, SIGMA Weather Grp, Ctr Space Sci & Appl Res, State Key Lab Space Weather, Beijing 100190, Peoples R China.
Department空间科学部
Source PublicationSCIENCE CHINA-EARTH SCIENCES
2014
Volume57Issue:1Pages:153-166
ISSN1674-7313
Language英语
KeywordImproved Cese Scheme Numerical Dissipation Steady-state Coronal Structure
AbstractThis paper presents an improved space-time conservation element and solution element (CESE) method by applying a non-staggered space-time mesh system and simply improving the calculation of flow variables and applies it to magnetohydrodynamics (MHD) equations. The improved CESE method can improve the solution quality even with a large disparity in the Courant number (CFL) when using a fixed global marching time. Moreover, for a small CFL (say < 0.1), the method can significantly reduce the numerical dissipation and retain the solution quality, which are verified by two benchmark problems. And meanwhile, comparison with the original CESE scheme shows better resolution of the improved scheme results. Finally, we demonstrate its validation through the application of this method in three-dimensional coronal dynamical structure with dipole magnetic fields and measured solar surface magnetic fields as the initial input.
Indexed BySCI
Funding Project中国科学院空间科学与应用研究中心
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/1508
Collection空间科学部
Corresponding AuthorZhou, YF (reprint author), Chinese Acad Sci, SIGMA Weather Grp, Ctr Space Sci & Appl Res, State Key Lab Space Weather, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Zhou YuFen,Feng XueShang,Zhou, YF . An improved CESE method and its application to steady-state coronal structure simulation[J]. SCIENCE CHINA-EARTH SCIENCES,2014,57(1):153-166.
APA Zhou YuFen,Feng XueShang,&Zhou, YF .(2014).An improved CESE method and its application to steady-state coronal structure simulation.SCIENCE CHINA-EARTH SCIENCES,57(1),153-166.
MLA Zhou YuFen,et al."An improved CESE method and its application to steady-state coronal structure simulation".SCIENCE CHINA-EARTH SCIENCES 57.1(2014):153-166.
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