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1998年5月2日日冕亮度观测图的数值研究
Alternative TitleNUMERICAL RESEARCH ABOUT WHITE LIGHT CORONAGRAPH FIGURE OBSERVED AT MAY 2 1998
叶占银; 魏奉思; 冯学尚; 石勇; 姚久胜; 北京8701信箱
Department空间天气学国家重点实验室
Source Publication空间科学学报
2001
Volume21Issue:2Pages:105-113
ISSN0254-6124
Language中文
Keyword太阳风 磁流体力学 Mdh数值模拟 1998年 日冕 亮度观测图
Abstract采用数值手段模拟了1998年5月2日日冕亮度观测图,计算模式改进为球坐标下系下特殊的二维理想磁流体(MHD)模型,即把(r,φ)坐标建立在SOHO观测日冕亮度的子午面上,消除了子午面极区的几何奇异性,根据SOHD日冕观测布置磁极子得到初始磁场位形,内边界条件采用自治的投影特征边界条件,计算迭代出稳态的多 磁场结构,得得到了与观测基本一致的亮度图,计算结果表明在太阳表面附近磁场位形对太阳凤等离子参数分布起控制作用.
Other AbstractA new model of 2-D ideal magnetohydrodynamic equations,which sets spheri-cal coordinates(r,) on the plane of sky to avoid singular geometry at solar poles,is employed to simulate white light coronagraph figure.Numerical white light fig-ure of the final self-consistent steady state,calculated with initial magnetic field constructed from a magnetic hexapole and several dipoles and with projected char-acteristic inner boundary condition,agrees basically with the observed coronagraph figure.The simulation also shows that magnetic structure dominates the solar wind flow field.
Indexed ByCSCD
Funding Project中国科学院空间科学与应用研究中心
Citation statistics
Document Type期刊论文
Version出版稿
Identifierhttp://ir.nssc.ac.cn/handle/122/1292
Collection空间科学部
Corresponding Author北京8701信箱
Recommended Citation
GB/T 7714
叶占银,魏奉思,冯学尚,等. 1998年5月2日日冕亮度观测图的数值研究[J]. 空间科学学报,2001,21(2):105-113.
APA 叶占银,魏奉思,冯学尚,石勇,姚久胜,&北京8701信箱.(2001).1998年5月2日日冕亮度观测图的数值研究.空间科学学报,21(2),105-113.
MLA 叶占银,et al."1998年5月2日日冕亮度观测图的数值研究".空间科学学报 21.2(2001):105-113.
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