| 行星际高速流的演化 |
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| 引用本文： | 胡友秋,陈挺.行星际高速流的演化[J].地球物理学报,1995,38(3):279-285. |
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| 作者姓名： | 胡友秋 陈挺 |
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| 作者单位： | 中国科学技术大学, 合肥 230026 |
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| 摘 要： | 本文采用一维时变模型，对高速流在行星际空间的演化进行数值模拟．结果表明：１．高速流前沿演化成为由前向快、慢激波和后向快激波构成的激波系统，高速流固有的低密度特征显著减弱前向慢激波的强度，并阻止后向慢激波的出现．２．高速流尾沿产生以快模为主体的前、后向稀疏波，它们对高速流前沿形成的快激波对的演化具有重要作用．
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| 关 键 词： | 行星际动力学 高速流 磁流体激波 |
| 收稿时间： | 1994-04-25 |
EVOLUTION OF INTERPLANETARY HIGH-SPEED STREAM |
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| Hu You-QIU, CHEN TING.EVOLUTION OF INTERPLANETARY HIGH-SPEED STREAM[J].Chinese Journal of Geophysics,1995,38(3):279-285. |
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| Authors: | Hu You-QIU CHEN TING |
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| Institution: | University of Science and Technology of China, Hefei 230026 |
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| Abstract: | Using a one-dimensional,time-dependent model,a numerical simulation study is presented on the evolution of high-speed streams in the interplanetary space.The result obtained comes to two conclusions as follows.1.The leading edge of a high-speed stream evolves into a shock system consisting of a forward fast shock,a forward slow shock,and a reverse fast shock.The low-density feature inherent by the high-speed stream diminishes the forward slow shock remarkably,and Prevents any reverse slow shock from occuring.2.A forward and a reverse rarefaction wave of mainly fast mode forms at the tailing edge of the high-speed stream,and both of them exert a significant influence on the fast shock pair formed at the leading edge of the high-speed stream. |
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| Keywords: | Interplanetary dynamics high-speed stream MHD shock |
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