| 超声速燃烧室凹槽动态特性试验研究 |
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| 引用本文： | 肖隐利,杨顺华,宋文艳,乐嘉陵.超声速燃烧室凹槽动态特性试验研究[J].气动实验与测量控制,2010(5):7-12. |
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| 作者姓名： | 肖隐利 杨顺华 宋文艳 乐嘉陵 |
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| 作者单位： | [1]西北工业大学动力与能源学院,西安710072 [2]中国空气动力研究与发展中心,四川绵阳621000 |
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| 基金项目： | 西北工业大学博士论文创新基金资助项目（W016107）; 国家自然科学基金（90716017） |
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| 摘 要： | 为研究超声速燃烧室中凹槽火焰稳定器的流动特性,对来流马赫数2.0条件下各种构型的凹槽流场进行了试验研究。得到了不同几何构型凹槽流场的纹影结果,采用动态压力传感器研究了凹槽流场的频谱特性,计算了凹槽流场自激振荡压力的均方根,并将试验结果和Rossiter经验公式预测结果进行了对比。
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| 关 键 词： | 超燃冲压发动机 火焰稳定器 凹槽 |
Experimental study of cavity flow oscillations in a scramjet combustor |
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| Authors: | XIAO Yin-li YANG Shun-hua SONG Wen-yan LE Jia-ling |
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| Institution: | 1.School of Engine and Energy,Northwestern Polytechnical University,Xi＇an 710072,China;2.China Aerodynamics Research and Development Center,Sichuan Mianyang 621000,China) |
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| Abstract: | In order to understand the flow characteristics of cavity flame holder in scramjet combustor,the flow field properties of various cavity geometric features are experimentally evaluated under Mach 2.0 flow conditions.Mean and unsteady pressure measurements on cavity floor and schlieren visualization are employed in the studies.Root mean square of pressure fluctuations and frequency spectra are obtained from the cavity.The results are compared well with Rossiter empirical formula.Furthermore,the results of calculation contributes to further understanding the flow field of hydrogen and hydrocarbon supersonic combustion,and is valuable for designing a high performance cavity flame holder in scramjet. |
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| Keywords: | scramjet flame holder cavity |
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