收藏本站
《Research in Astronomy and Astrophysics》 2015年03期
收藏 | 投稿 | 手机打开
二维码
手机客户端打开本文

Numerical experiments on the evolution in coronal magnetic configurations including a filament in response to the change in the photosphere

Hong-Juan Wang  Si-Qing Liu  Jian-Cun Gong  Jun Lin  
【摘要】:We investigate equilibrium height of a flux rope, and its internal equilibrium in a realistic plasma environment by carrying out numerical simulations of the evolution of systems including a current-carrying flux rope. We find that the equilibrium height of a flux rope is approximately described by a power-law function of the relative strength of the background field. Our simulations indicate that the flux rope can escape more easily from a weaker background field. This further confirms that a catastrophe in the magnetic configuration of interest can be triggered by a decrease in strength of the background field. Our results show that it takes some time to reach internal equilibrium depending on the initial state of the flux rope. The plasma flow inside the flux rope due to the adjustment for the internal equilibrium of the flux rope remains small and does not last very long when the initial state of the flux rope commences from the stable branch of the theoretical equilibrium curve. This work also confirms the influence of the initial radius of the flux rope in its evolution; the results indicate that a flux rope with a larger initial radius erupts more easily. In addition, by using a realistic plasma environment and a much higher resolution in our simulations,we notice some different characteristics compared to previous studies in Forbes.
【作者单位】Center
【基金】:Supported by the National Natural Science Foundation of China
【分类号】:P182

免费申请
【相似文献】
中国期刊全文数据库 前10条
1 ;Governing Equation and Mathematical Simulation on Ablation and Transpiration Control[J];Chinese Journal of Systems Engineering and Electronics;1992年03期
2 杨训仁;CALCULATIONS FOR THE FIELD OF PLANE SOUND WAVES IN A REALISTIC ATMOSPHERE[J];Chinese Journal of Acoustics;1983年01期
3 LIU SHU-I;;ON THE REALISTIC STRESS SPACE OF SOLIDS[J];Science in China,Ser.A;1954年02期
4 郭其悌,蔡晨;SOME PROPERTIES OF CLOSED-NET-DIAGRAMS OF n+k(k≥3) PHASE MULTISYSTEMS[J];Science in China,Ser.B;1982年07期
5 张仁华;A REMOTE-SENSING THERMAL INERTIA MODEL FOR SOIL MOISTURE AND ITS APPLICATION[J];Chinese Science Bulletin;1992年04期
6 陈义学,吴宜灿;Effect of Fusion Neutron Source Numerical Models on Neutron Wall Loading in a D-D Tokamak Device[J];Plasma Science & Technology;2003年02期
7 GUO Huadong;;Earth Observations in China and the World: History and Development in 50 Years[J];Bulletin of the Chinese Academy of Sciences;2013年02期
8 ;RECENT RESEARCHES ON THE RESPONSES OF SHIPS AT SEAS IN CHINA[J];Journal of Hydrodynamics;1989年01期
9 ;RFPA Realistic Failure Process Analysis[J];Journal of Rock Mechanics and Geotechnical Engineering;2013年05期
10 石秉仁;;Growth rate of peeling mode in the near separatrix region of diverted tokamak plasma[J];Chinese Physics B;2014年01期
中国重要会议论文全文数据库 前10条
1 Wei-Ya Hao;Jing Bai;;Computer simulation of a realistic model of abdominal aortic aneurysm in dynamic response to pulsatile internal pressure[A];Radio Science in China 1998-2001[C];2002年
2 Hiroshi AKIBA;;Large Scale Parallel Structural Analysis-Methods and Examples[A];中国力学学会学术大会'2009论文摘要集[C];2009年
3 ;Realistic Arithmetic Word Problems[A];第十届全国心理学学术大会论文摘要集[C];2005年
4 Karim Salahshoor;Amin Mirzae;;Plant-wide Control of a Gas Plant Using a Structured Method[A];Proceedings of 2010 Chinese Control and Decision Conference[C];2010年
5 Yuqiong WU;Weidong MAN;;Teaching Research on "Separation Engineering" Based on Network Resources[A];第5届教育教学改革与管理工程学术年会论文集[C];2012年
6 ;Synchronization control of stochastically coupled neural networks with mixed time-delays[A];2009中国控制与决策会议论文集(2)[C];2009年
7 Jing Zhang;;A New Computing Method of First and Follow Sets[A];Proceedings of 2011 International Conference on Computer Science and Information Technology(ICCSIT 2011)[C];2011年
8 杨忠炜;陆全明;B.Lembege;杨慧根;胡红桥;韩德胜;;Impact of particle dynamics on the ramp thickness at perpendicular collisionless shocks[A];中国空间科学学会空间物理学专业委员会第十五届全国日地空间物理学研讨会摘要集[C];2013年
9 郑秋豫;;大会报告1 Prosody—What Text Can Never Fully Tell[A];第十一届全国人机语音通讯学术会议论文集(一)[C];2011年
10 ;Synchronization of Networked Passive Systems with Directed Communication Topologies[A];Proceedings of the 2011 Chinese Control and Decision Conference(CCDC)[C];2011年
 快捷付款方式  订购知网充值卡  订购热线  帮助中心
  • 400-819-9993
  • 010-62791813
  • 010-62985026