| 再入体激波层和近尾流热辐射实验研究 |
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| 引用本文： | 葛学真,王九瑞,张正信.再入体激波层和近尾流热辐射实验研究[J].宇航学报,1988(2). |
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| 作者姓名： | 葛学真 王九瑞 张正信 |
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| 作者单位： | 中国科学院力学研究所
(葛学真，王九瑞)，中国科学院力学研究所(张正信) |
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| 摘 要： | 本文介绍了在弹道靶设备上对再入速度下模型的热辐射进行的实验研究工作。铝、高硅氧和聚碳酸酯三种材料的模型在速度为4.5～6.0(km/s),压力为600—8000Pa条件下做了实验,在258nm—1100nm光谱范围内完成了九个波段的辐射测量,给出了三种材料模型的辐射光谱分布曲线。结果表明辐射量除了受环境条件影响外,还强烈地依赖于模型材料;由烧蚀产物引起的辐射通量主要在可见光和近红外区(465nm以上)。估算了烧蚀产物引起的辐射加热率,对头部和近尾流辐射通量做了比较。
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| 关 键 词： | 再入模拟 再入加热 辐射测量 自由飞试验 弹道靶 再入物理 |
EXPERIMENTAL STUDIES OF THERMAL RADIATION OF SHOCKLAYER AND NEAR WAKE OF BODIES AT REENTRY VELOCITY |
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| Ge Xuezhen Wang Jiurui Zhang Zhengxin.EXPERIMENTAL STUDIES OF THERMAL RADIATION OF SHOCKLAYER AND NEAR WAKE OF BODIES AT REENTRY VELOCITY[J].Journal of Astronautics,1988(2). |
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| Authors: | Ge Xuezhen Wang Jiurui Zhang Zhengxin |
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| Abstract: | The radiative properties of shock-layer and near wake of the models of blunt bodies flying in ballistic range were studied. The materials of models investigated included aluminium, glass-cloth/polyester, and polycarbonate. The measurment of radiation has been made in spectral range from 258 nmto 1100nm at the velocity range from 4.5 to 6.0km/s. The spectrographic data of shock-layer and near wake regions were obtained for models of aforementioned three materials. The results basically coincide with the theoretical prediction. It was also indicated that the radiation strongly depends on material as well as on velocity and density. The spectral range of the radiation caused by ablating products was mainly in near infrared. The radiant heating rate of ablation products was also evaluated. |
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| Keywords: | Reentry simulation Reentry heating Radiation measurement Free flight test Ballistic range Reentry physics |
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