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Analyzing Characters of Plasma Wake with Method of Chaos Dynamics |
| CAO Jin-xiang;FANG Jian-dong;ZHAO Hong-bo;LIN Yi-jun;ZHANG Jia-xiang1;WANG Jie-xia1;DONG Yong-hui1 |
| Department of Modern Physics, University of Science and Technology of China, Hefei 230027
1Beijing Institute of Aerodynamics, Beijing 100074
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| Cite this article: |
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CAO Jin-xiang, FANG Jian-dong, ZHAO Hong-bo et al 1998 Chin. Phys. Lett. 15 889-891 |
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Abstract In this paper, analyzing the experiment data of multiple scanning probes in the arc wind-driven hypersonic plasma flows with the chaos dynamics method, we have obtained the power spectrum, the frequency wavenumber spectral density, the correlation dimension and Kolmogorov entropy of the flows, respectively. The distribution of correlation dimension and Kolmogorov entropy of the blunt cone wakes along the axis and the radius of the flows are presented successfully in the flows. The distributions clearly show the structure of turbulence and lamination in blunt cone wakes. Using the method of minimum Kolmogorov entropy, we observed the structure of the bow shock at far wake region in the blunt cone wakes.
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52.30.-q
47.40.-x
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Published: 01 December 1998
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| PACS: |
52.30.-q
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(Plasma dynamics and flow)
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47.40.-x
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(Compressible flows; shock waves)
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