English  |  正體中文  |  简体中文  |  Items with full text/Total items : 69561/69561 (100%)
Visitors : 23164243      Online Users : 253
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
Scope Tips:
  • please add "double quotation mark" for query phrases to get precise results
  • please goto advance search for comprehansive author search
  • Adv. Search
    HomeLoginUploadHelpAboutAdminister Goto mobile version


    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/27539


    Title: ION DYNAMICS IN HIGH-MACH-NUMBER QUASI-PARALLEL SHOCKS
    Authors: LYU,LH;KAN,JR
    Contributors: 太空科學研究所
    Keywords: SUPERCRITICAL COLLISIONLESS SHOCKS;BOW SHOCK;SELF-CONSISTENT;RE-FORMATION;SIMULATIONS;UPSTREAM;REFLECTION;DISSIPATION;PLASMA;WAVES
    Date: 1993
    Issue Date: 2010-06-29 18:40:34 (UTC+8)
    Publisher: 中央大學
    Abstract: Ion heating in high-Mach-number (MA greater-than-or-equal-to 3) quasi-parallel shocks is accomplished by ion reflections at the shock ramp and nonadiabatic pitch angle scattering through nonlinear waves in the shock transition region. Two types of ion reflection events are observed in high-Mach-number shock simulations: (1) the reflecting-reentering event and (2) the backstreaming-gyrating event. The behavior of ion reflection depends on the orientation of the ramp field relative to the upstream field. A gyroreflection model is proposed to provide a physical explanation for the two types of ion reflection events observed in the high-Mach-number shocks. The rotation of the ramp field with time leads to alternative occurrence of the two types of ion reflection events, which in turn leads to shock front reformation in the high-Mach-number quasi-parallel shock. The time scale for the shock front reformation is estimated to be about 1 to 2 upstream ion gyroperiods, which is about 10 ion gyroperiods for ions experiencing overshot magnetic field in the shock ramp.
    Relation: JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
    Appears in Collections:[太空科學研究所 ] 期刊論文

    Files in This Item:

    File Description SizeFormat
    index.html0KbHTML473View/Open


    All items in NCUIR are protected by copyright, with all rights reserved.

    社群 sharing

    ::: Copyright National Central University. | 國立中央大學圖書館版權所有 | 收藏本站 | 設為首頁 | 最佳瀏覽畫面: 1024*768 | 建站日期:8-24-2009 :::
    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - Feedback  - 隱私權政策聲明