| 高超声速等离子体流场混沌特性的实验分析 |
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| 引用本文： | 曹金祥,赵红波,林毅君,胡业民,张嘉祥,王洁霞,董永辉,李春祥.高超声速等离子体流场混沌特性的实验分析[J].空气动力学学报,1999,17(4):449-453. |
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| 作者姓名： | 曹金祥 赵红波 林毅君 胡业民 张嘉祥 王洁霞 董永辉 李春祥 |
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| 作者单位： | 1. 中国科学技术大学近代物理系,合肥,230027
2. 北京空气动力学研究所,北京,100074 |
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| 摘 要： | 本文采用耗散系统的混沌动力学方法，分析处理了ＦＤ０４电弧风洞超高速等离子体流场实验中多道扫描探针的实验数据。分别给出了无锥体流场和有锥体尾迹等离子体流场的相关维数和Ｋｏｌｍｏｇｏｒｏｖ熵值的分布。该分布清晰地刻划了流场的湍动和分层结构。用Ｋｏｌｍｏｇｏｒｏｖ熵极小值方法，观测到了锥体尾迹流场的主激波结构。
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| 关 键 词： | 高超声速流动 尾迹 混沌 等离子体诊断 |
Experimental Analysis of Hypersonic Plasma Flows Chaos Characteristic |
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| Cao Jinxiang,Zhao Hongbo,Lin Yijun,Hu Yemin,Zhang Jiaxiang,Wang Jiexia,Dong Yonghui,Li Chunxiang.Experimental Analysis of Hypersonic Plasma Flows Chaos Characteristic[J].Acta Aerodynamica Sinica,1999,17(4):449-453. |
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| Authors: | Cao Jinxiang Zhao Hongbo Lin Yijun Hu Yemin Zhang Jiaxiang Wang Jiexia Dong Yonghui Li Chunxiang |
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| Abstract: | In this paper, the experimental data of the multi channel scanning probe for the experiment of the hypersonic plasma flows in the arc-heated tunnel are analysed by using method of the chaotic dynamics. It is given that the distributions of correlation dimension and Kolmogorov entropy of the blunted cone wake flows and no blunted cone flows, which successfuly capture the turbulence and demarcation layer structure in the flows. The bow shock structure of blunted cone wake flow is observed by the method of Kolmogorov entropy minimum values. |
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| Keywords: | hypersonic flow wake chaos plasma diagnostics |
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