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姓名 黃允威(Yun-Wei Huang) 查詢紙本館藏 畢業系所 太空科學研究所 論文名稱 壓力非均向電漿中慢速震波之模擬研究
(Hybrid simulations of slow shock formation in anisotropic plasmas)相關論文 檔案 [Endnote RIS 格式] [Bibtex 格式] [相關文章] [文章引用] [完整記錄] [館藏目錄] [檢視] [下載]
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摘要(中) 在本論文中,我們以一維混合粒子數值碼為研究工具,利用電流片結構為初始條件之黎曼問題方法 (Riemann problem),研究震波及不連續面結構之生成,並且探討系統中,磁壓熱壓比與壓力非均向性對結構生成之影響。根據磁流體理論,慢速震波會有異常的行為。而在模擬結果中,異常慢速震波會在初始條件為壓力非均向之系統中生成,其中,於慢速震波之上游區域出現波列結構 (wavetrain) 以及傳播速度較旋轉不連續面快之異常現象均會在特定參數範圍下生成。 摘要(英) In this study we carry out the one-dimensional hybrid particle simulations of shock waves and discontinuities. The shock waves and discontinuities are generated in the plasma current sheet by means of the Riemann problem. The effects of pressure anisotropy and plasma beta on the discontinuity properties are examined. According to the Magnetohydrodynamics theory, slow shocks may become anomalous in anisotropic plasmas. The simulation results of this study show that the anomalies slow shocks may be generated in the kinetic simulations with initial temperature anisotropy. In particular, slow shocks with upstream wavetrains or moving ahead of rotational discontinuity may form for certain parameter regimes. 關鍵字(中) ★ 模擬
★ 慢速震波
★ 混合粒子碼
★ 黎曼問題
★ 磁重聯
★ 壓力非均向
★ 電流片關鍵字(英) ★ simulation
★ slow shock
★ hybrid
★ reconnection
★ anisotropic
★ current sheet論文目次 中文摘要 ………………………………………………………………… i
Abstract ………………………………………………………………… ii
誌謝 ………………………………………………………………… iii
目錄 ………………………………………………………………… iv
圖目錄 ………………………………………………………………… v
表目錄 ………………………………………………………………… vi
一、 緒論……………………………………………………… 1
二、 模擬模型與參數……………………………… 5
2-1. 模擬模型……………………………………………… 5
2-2. 模擬參數……………………………………………… 6
三、 模擬結果 …………………………………………… 9
3-1. 案例分析 …………………………………………… 9
3-2. 統整分析 …………………………………………… 14
四、 總結 …………………………………………………… 39
參考文獻 …………………………………………………………………… 41
參考文獻 Chew, G. F., et al., “The Boltzmann Equation and the One-Fluid Hydromagnetic Equations in the Absence of Particle Collisions”, Series A, Mathematical and Physical Sciences, 236, 112, 1956
Hau, L. N. and C. C. Hung, “Formation of anomalous slow shocks in anisotropic plasmas”, Geophys. Res. Lett., 32, 14103, 2005
Hoshino, M., et al., “Slow shock downstream structure in the magnetotail”, J. Geophys. Res., 105, 337, 2000
Hung, C. C., et al., “Magnetic reconnection in an anisotropic plasma: Observation and theory”, Geophys. Res. Lett., 38, 18106, 2011
Lin Y. and L. C. Lee, “Simulation study of the Riemann problem associated with the magnetotail reconnection”, J. Geophys. Res., 155, 16, 1995
Petschek, H. E., “Magnetic Field Annihilation, in The Physics of Solar Flares”, Proceedings of the AAS-NASA, 425, Goddard Space Flight Center, Maryland, 1963
Walthour, D. W., et al., “Observation of anomalous slow-mode shock and reconnection layer in the dayside magnetopause”, J. Geophys. Res., 99, 23705, 1994
Whang, Y. C., et al., “Double discontinuity: A compound structure of slow shock and rotational discontinuity”, J. Geophys. Res., 103, 6513, 1998
Whang, Y. C., et al., “Double discontinuities at the magnetotail plasma sheet-lobe boundary”, Ann. Geophys, 19, 1095, 2001
Weng, C. J., et al., “Generation of shock/discontinuity compound structures through magnetic reconnection in the geomagnetic tail”, Physics of Plasmas, 19, 122904, 2012
陳予泰,「霍爾電流對壓力非均向磁性流體波傳播之效應」,國立中央大學,碩士論文,1995
指導教授 郝玲妮(Lin-Ni Hau) 審核日期 2015-7-23 推文 facebook plurk twitter funp google live udn HD myshare reddit netvibes friend youpush delicious baidu 網路書籤 Google bookmarks del.icio.us hemidemi myshare