| 烧蚀边界层温度分布的测量 |
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| 引用本文： | 严汶子,张秀杰.烧蚀边界层温度分布的测量[J].空气动力学学报,1990,8(2):168-173. |
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| 作者姓名： | 严汶子 张秀杰 |
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| 作者单位： | 中国科学院力学研究所
(严汶子)，中国科学院力学研究所(张秀杰) |
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| 摘 要： | 采用发射光谱法对电弧射流中再入模拟烧蚀边界层的参数分布进行测量,主要问题是如何获得对气体状态模型的确切了解和实现同时具有高空间分辨率、时间分辨率和光谱分辨率的辐射测量技术。本文提供了鉴定LTE条件是否存在的可靠方法,介绍了准确测量烧蚀边界层光谱辐射剖面的技术措施。测得驻点烧蚀边界层的温度分布与相应的理论计算结果符合较好。
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| 关 键 词： | 烧蚀 边界层 温度分布 再入 测量 |
THE MEASUREMENTS OF TEMPERATURE PROFILES IN ABLATING BOUNDARY LAYERS |
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| Yan Wenzi Zhang Xiuje.THE MEASUREMENTS OF TEMPERATURE PROFILES IN ABLATING BOUNDARY LAYERS[J].Acta Aerodynamica Sinica,1990,8(2):168-173. |
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| Authors: | Yan Wenzi Zhang Xiuje |
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| Abstract: | This paper presents the major problems with using spectroscopic methods for measuring the parameter'profiles in ablating boundary layers of reentry simulation tests in arc jets. A reliable method to verify the existence of LTE is recommended. The techniques for measuring the spatial radiation distribution at a fast sampling speed with high spatial and spectral resolution are introduced. The temperature profiles measured from the boundary layers at stagnation-point are reasonable in agreement with the results of theoretical calculation. |
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| Keywords: | reentry ablating boundary layer temperature measurement spectroscopic diagnostics |
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