Investigation on nonequlibrium radiation and relaxation phenomena in shock tubes |
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| Authors: | Zhu Naiyi Yang Qiansuo Zhang Hengli Yu Xilong Huang Lishun |
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| Affiliation: | Laboratory of High Temperature Gas Dynamics, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100080, China;Laboratory of High Temperature Gas Dynamics, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100080, China;Laboratory of High Temperature Gas Dynamics, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100080, China;Laboratory of High Temperature Gas Dynamics, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100080, China;Laboratory of High Temperature Gas Dynamics, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100080, China |
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| Abstract: | The experimental results for the excited time of the nonequlibrium radiation and the ionization behind strong shock waves are presented. Using an optical multichannel analyzer, InSb infrared detectors and near-free-molecular Langmuir probes, the infrared radiation, the electron density of air and the nonequlibrium radiation spectra at different moments of the relaxation process in nitrogen test gas behind normal shock waves were obtained, respectively, in hydrogen oxygen combustion driven shock tubes. The project supported by the National Natural Science Foundation of China (19982005 and 10032050), and the National Defense Science Foundation of China (95JBA4.2ZK0402) |
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| Keywords: | nonequlibrium radiation relaxation phenomena shock tube |
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