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基于acetone-PLIF技术的超燃冲压发动机燃烧室燃料/空气掺混特性

王林森,  涂晓波,  王宇航,  陈爽,  宋文艳,  杨顺华

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文章导航 > 航空动力学报  > 2021 >  36(8): 1614-1620
王林森, 涂晓波, 王宇航, 陈爽, 宋文艳, 杨顺华. 基于acetone-PLIF技术的超燃冲压发动机燃烧室燃料/空气掺混特性[J]. 航空动力学报, 2021, 36(8): 1614-1620. doi: 10.13224/j.cnki.jasp.20200444
引用本文: 王林森, 涂晓波, 王宇航, 陈爽, 宋文艳, 杨顺华. 基于acetone-PLIF技术的超燃冲压发动机燃烧室燃料/空气掺混特性[J]. 航空动力学报, 2021, 36(8): 1614-1620. doi: 10.13224/j.cnki.jasp.20200444
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WANG Linsen, TU Xiaobo, WANG Yuhang, CHEN Shuang, SONG Wenyan, YANG Shunhua. Fuel/air mixing characteristics of scramjet combustor based on acetone-PLIF technology[J]. Journal of Aerospace Power, 2021, 36(8): 1614-1620. doi: 10.13224/j.cnki.jasp.20200444
Citation: WANG Linsen, TU Xiaobo, WANG Yuhang, CHEN Shuang, SONG Wenyan, YANG Shunhua. Fuel/air mixing characteristics of scramjet combustor based on acetone-PLIF technology[J]. Journal of Aerospace Power, 2021, 36(8): 1614-1620. doi: 10.13224/j.cnki.jasp.20200444
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基于acetone-PLIF技术的超燃冲压发动机燃烧室燃料/空气掺混特性

doi: 10.13224/j.cnki.jasp.20200444

  • 1. 中国空气动力研究与发展中心 高超声速冲压发动机技术重点实验室, 四川 绵阳 621000;

  • 2. 中国空气动力研究与发展中心 设备设计与测试技术研究所, 四川 绵阳 621000;

  • 3. 西北工业大学 动力与能源学院, 西安 710072

基金项目: 

高超声速冲压发动机技术重点实验室开放基金（STS/MY-KFKT-2017-003）

详细信息
    作者简介:

    王林森(1993-),男,实习研究员,硕士,主要从事流场显示及测量研究。E-mail:1729560285@qq.com

    通讯作者:

    陈爽(1979-),男,副研究员,博士,主要从事燃烧流场激光光谱诊断、湍流燃烧实验研究。E-mail:chenshuang827@gmail.com

  • 中图分类号: V237

Fuel/air mixing characteristics of scramjet combustor based on acetone-PLIF technology

  • 1. Science and Technology on Scramjet Laboratory, China Aerodynamics Research and Development Center, Mianyang Sichuan 621000, China;

  • 2. Facility Design and Instrumentation Institute, China Aerodynamics Research and Development Center, Mianyang Sichuan 621000, China;

  • 3. School of Power and Energy, Northwestern Polytechnical University, Xi'an 710072, China

    摘要
  • 摘要: 针对超燃冲压发动机燃烧室内燃料/空气掺混特性，设计了一套以acetone-PLIF（planar laser-in-duced fluorescence）为技术手段的流动显示测量系统，得到了4种不同结构交错楔形支板在不同特征截面处的丙酮荧光图像，研究了喷嘴位置和尾缘角这两个变量对燃料/空气掺混效果的影响。结果表明：“基准”支板NL1的流场结构主体上表现为横向“S”形曲线，燃料/空气的掺混效果相对普通； NL2支板虽然增大了一些丙酮的扩散范围，但有荧光信号的掺混区域面积却反而有所下降；而引入扩张型尾缘角变量的EL1支板则是大幅改善了燃料/空气的掺混效果，54 mm截面的丙酮分子充满了较大片区域，掺混区域超过截面的1/2。

     

    Abstract: In order to study fuel/air mixing characteristics in scramjet combustor,a non-invasive flow visualization system was designed based on acetone-PLIF(planar laser-induced fluorescence) technology. The acetone fluorescence images of four kinds of shaped struts were obtained at different sections, and the effects of nozzle position and trailing edge angle on fuel/air mixing were studied. The results showed that the flow field of the "standard" NL1 strut was of a transverse "S" curve,which had normal mixing effect in the four struts. The NL2 strut increased a few acetone diffusion range, but decreased mixing area with fluorescence signals. The EL1 strut with an expanded trailing edge angle can greatly improve effect, since the acetone molecules filled over a half of the cross section at 54 mm downstream the strut.

     

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出版历程
  • 收稿日期:  2020-10-22
  • 刊出日期:  2021-08-28

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