An asynchronous and parallel time-marching method: Application to three-dimensional MHD simulation of solar wind
文献类型：期刊论文
| 作者 | Shen, F. ; Feng, X. S. ; Song, W. B. |
| 刊名 | Science in China Series E-Technological Sciences
 |
| 出版日期 | 2009 |
| 卷号 | 52期号:10页码:2895-2902 |
| ISSN号 | 1006-9321 |
| 关键词 | asynchronous parallel MHD simulation CME magnetohydrodynamic simulation flux rope ulysses event streamer plasma model |
| 通讯作者 | 北京8701信箱 |
| 英文摘要 | An asynchronous and parallel time-marching method for three-dimensional (3D) time-dependent magnetohydrodynamic (MHD) simulation is used for large-scale solar wind simulation. It uses different local time steps in the corona and the heliosphere according to the local Courant-Friedrichs-Levy (CFL) conditions. The solar wind background with observed solar photospheric magnetic field as input is first presented. The simulation time for the background solar wind by using the asynchronous method is < 1/6 of that by using the normal synchronous time-marching method with the same computation precision. Then, we choose the coronal mass ejection (CME) event of 13 November, 2003 as a test case. The time-dependent variations of the pressure and the velocity configured from a CME model at the inner boundary are applied to generate transient structures in order to study the dynamical interaction of a CME with the background solar wind flow between 1 and 230 Rs. This time-marching method is very effective in terms of computation time for large-scale 3D time-dependent numerical MHD problem. In this validation study, we find that this 3D MHD model, with the asynchronous and parallel time-marching method, provides a relatively satisfactory comparison with the ACE spacecraft observations at L1 point. |
| 学科主题 | 空间物理 |
| 收录类别 | SCI |
| 原文出处 | http://www.springerlink.com/content/d5231l3310764070/fulltext.pdf |
| 语种 | 英语 |
| 源URL | [http://ir.cssar.ac.cn/handle/122/1133]  |
| 专题 | 国家空间科学中心_空间科学部 |
| 推荐引用方式 GB/T 7714 | Shen, F.,Feng, X. S.,Song, W. B.. An asynchronous and parallel time-marching method: Application to three-dimensional MHD simulation of solar wind[J]. Science in China Series E-Technological Sciences,2009,52(10):2895-2902. |
| APA | Shen, F.,Feng, X. S.,&Song, W. B..(2009).An asynchronous and parallel time-marching method: Application to three-dimensional MHD simulation of solar wind.Science in China Series E-Technological Sciences,52(10),2895-2902. |
| MLA | Shen, F.,et al."An asynchronous and parallel time-marching method: Application to three-dimensional MHD simulation of solar wind".Science in China Series E-Technological Sciences 52.10(2009):2895-2902. |
入库方式： OAI收割
来源：国家空间科学中心
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