NSSC OpenIR  > 空间科学部
A New MHD Model with a Rotated-hybrid Scheme and Solenoidality-preserving Approach
Feng, Xueshang; Liu, XiaoJing; Xiang, Changqing; Li, HuiChao; Wei, Fengsi
作者部门空间科学部
发表期刊ASTROPHYSICAL JOURNAL
2019
卷号871期号:2页码:226
DOI10.3847/1538-4357/aafacf
ISSN0004-637X
语种英语
关键词magnetohydrodynamics (MHD) Sun: corona solar wind
摘要In this paper, the rotated-hybrid scheme is applied for the first time to 3D magnetohydrodynamics (MHD) equations in the finite-volume frame. This scheme is devised by decomposing a cell-face normal vector into two orthogonal directions and combining the Roe solver, a full-wave or complete Riemann solver, and the Rusanov solver, an incomplete Riemann solver, into one rotated-hybrid Riemann solver. To keep the magnetic field divergence-free, we propose two kinds of divergence-cleaning approaches by combining the least-squares reconstruction of magnetic field with the divergence-free constraints. One is the locally solenoidality-preserving method designed to locally maintain the magnetic solenoidality exactly, not just in a least-squares sense, and another is the globally solenoidality-preserving (SP) approach that is implemented by adding a global constraint but abandons the exactness of the locally divergence-free condition. Both SP methods are employed for 3D MHD with a rotated-hybrid scheme in the finite-volume frame. To validate and demonstrate the capabilities of the rotated-hybrid scheme for MHD, we perform an Orszag-Tang MHD vortex problem and a numerical study for the steady-state coronal structures of Carrington rotation 2068 during the solar activity minimum. The numerical tests show the robustness of the proposed scheme and demonstrate the capability of these two SP approaches to keep the magnetic divergence errors to the expected accuracy.
收录类别SCI
引用统计
文献类型期刊论文
条目标识符http://ir.nssc.ac.cn/handle/122/6942
专题空间科学部
推荐引用方式
GB/T 7714
Feng, Xueshang,Liu, XiaoJing,Xiang, Changqing,et al. A New MHD Model with a Rotated-hybrid Scheme and Solenoidality-preserving Approach[J]. ASTROPHYSICAL JOURNAL,2019,871(2):226.
APA Feng, Xueshang,Liu, XiaoJing,Xiang, Changqing,Li, HuiChao,&Wei, Fengsi.(2019).A New MHD Model with a Rotated-hybrid Scheme and Solenoidality-preserving Approach.ASTROPHYSICAL JOURNAL,871(2),226.
MLA Feng, Xueshang,et al."A New MHD Model with a Rotated-hybrid Scheme and Solenoidality-preserving Approach".ASTROPHYSICAL JOURNAL 871.2(2019):226.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
20198712226.pdf(13885KB)期刊论文出版稿开放获取CC BY-NC-SA请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Feng, Xueshang]的文章
[Liu, XiaoJing]的文章
[Xiang, Changqing]的文章
百度学术
百度学术中相似的文章
[Feng, Xueshang]的文章
[Liu, XiaoJing]的文章
[Xiang, Changqing]的文章
必应学术
必应学术中相似的文章
[Feng, Xueshang]的文章
[Liu, XiaoJing]的文章
[Xiang, Changqing]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。