| 双截面聚焦纹影技术应用研究 |
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| 引用本文： | 黄思源,谢爱民,白菡尘.双截面聚焦纹影技术应用研究[J].气动实验与测量控制,2011(6):92-96. |
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| 作者姓名： | 黄思源 谢爱民 白菡尘 |
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| 作者单位： | 中国空气动力研究与发展中心超高速所高超声速冲压发动机技术重点实验室,四川绵阳621000 |
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| 基金项目： | 中国博士后科学基金（20090451524）及中国空气动力研究与发展中心AED项目资助致谢：感谢中国空气动力研究与发展中心给予AED项目组的资助.感谢蔡铁军师傅为实验工作维护运行设备付出的辛勤劳动,感谢李宏斌、王洪亮、王振锋、陈军等同事给予的有益讨论和建议. |
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| 摘 要： | 通过支板尾流结构显示实验，研究了使用双截面聚焦纹影技术显示复杂流动的可行性。双截面聚焦纹影系统能在一次实验中得到两个不同位置的聚焦纹影图片，并能保证两张图片反映的是同一时刻的流场结构。比较了普通纹影与双截面聚焦纹影系统捕捉三维流场结构的能力，证明聚焦纹影技术显示复杂流场是有潜力的。为使之能够清晰地反映复杂流场的三维特征，还需在缩小聚焦区厚度和提高信号质量方面做工作。
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| 关 键 词： | 直连式设备 光学系统 聚焦纹影 双截面 流场结构 |
Application of dual-section focusing schlieren visualization system |
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| Authors: | HUANG Si-yuan XIE Ai-min BAI Han-chen |
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| Institution: | (Science and Technology on Scramjet Laboratory, H ypervelocity Aerodynamics Institute, China Aerodynamics Research and Development Center, Mianyang Sichuan 621000,China) |
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| Abstract: | In a strut wake visualization experiment, the feasibility of characterizing complex flow fields by a dual-section focusing schlieren technique was verified. The dual-section focusing schlieren technique can get two images in the same run simultaneity. By comparing the schlieren and focusing schlieren images of three-dimensional flow structures, it is showed that the dual-section focusing schlieren system has potentiality in characterizing complex flow fields. In the future work, it should be done to reduce the depth-of-focus and improve the image quality to finely characterize complex flow fields. |
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| Keywords: | direct connected facility optical system focusing schlieren dual-section flow structure |
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