| 上游参数空间的激波分布 |
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| 引用本文： | 胡友秋,楼英明.上游参数空间的激波分布[J].地球物理学报,1992,35(3):269-277. |
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| 作者姓名： | 胡友秋 楼英明 |
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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： | 本文从Rankine-Hugoniot关系出发,采用阿尔文数A1、激波角θ1和气压-磁压比β1作为上游参数,导出了参数空间中激波区边界的解析表达式;讨论了各类激波在参数空间的分布范围和相互关系;指出只有当上游背景阿尔文波速超过声速时,才有可能通过中间激波实现快、慢激波之间的空间连接和时间演化.
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| 关 键 词： | 磁流体力学 中间激波 |
| 收稿时间： | 1991-07-08 |
SHOCK DISTRIBUTION IN THE UPSTREAM PARAMETRIC SPACE |
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| HU YOU-QIU Lou YING-MING.SHOCK DISTRIBUTION IN THE UPSTREAM PARAMETRIC SPACE[J].Chinese Journal of Geophysics,1992,35(3):269-277. |
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| Authors: | HU YOU-QIU Lou YING-MING |
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| Institution: | University of Science and Technology of China, Hefei 230026 |
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| Abstract: | Based on the Rankine-Hugoniot relations and using the Alfvenic number A1, the shock angle 61 and the ratio of gas pressure to magnetic pressure β1 as the upstream parameters, this paper derives analytical expressions for the boundaries of the shock region and discusses the distribution of and the relationship between various types of shocks in the parametric space. It is shown that only with the Alfven speed higher than the sound speed upstream can a fast shock and a slow shock achieve their spatial connection and temporal evolution via intermediate shocks. |
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| Keywords: | Magnetohydrodynamics Intermediate shock |
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