首页> 外文期刊>Applied physics >Resolution-doubled one-dimensional wavelength modulation spectroscopy tomography for flame flatness validation of a flat-flame burner
【24h】

Resolution-doubled one-dimensional wavelength modulation spectroscopy tomography for flame flatness validation of a flat-flame burner

机译:分辨率翻倍的一维波长调制光谱层析成像,用于验证平焰燃烧器的火焰平整度

获取原文
获取原文并翻译 | 示例
       

摘要

Flame flatness is one of the most critical factors in evaluating the performance of a flat-flame burner. In this paper, the flame flatness of a flat-flame burner is validated using a resolution-doubled one-dimensional wavelength modulation spectroscopy tomography (1D-WMST) technique that only uses one view of multiple parallel laser beams. When the interval of two neighboring parallel laser beams is Delta r, a designed novel geometry of the parallel laser beams realizes a doubled tomographic resolution of Delta r/2. Using the proposed technique, the distributions of temperature and H2O mole fraction in an axisymmetric premixed flame are simultaneously reconstructed and hence the flame flatness of a flat-flame burner can be validated. The flatness factor is quantitatively described by the similarity between the reconstructed and expected distributions of H2O mole fraction. For flat and non-flat flames, the experimental results agree well with the CFD simulation results, denoting that the resolution-doubled 1D-WMST technique provides a noninvasive, reliable and low cost way to validate the flame flatness of the flat-flame burner.
机译:火焰平整度是评估平焰燃烧器性能的最关键因素之一。在本文中,使用分辨率加倍的一维波长调制光谱层析成像(1D-WMST)技术验证了平面火焰燃烧器的火焰平面度,该技术仅使用多个平行激光束的一个视图。当两个相邻的平行激光束的间隔为Delta r时,所设计的新颖的平行激光束几何形状可实现Delta r / 2的双倍层析成像分辨率。使用提出的技术,可以同时重构轴对称预混火焰中的温度和H2O摩尔分数的分布,因此可以验证平焰燃烧器的火焰平坦度。平面度因子由H2O摩尔分数的重构分布和预期分布之间的相似性定量描述。对于扁平和非扁平火焰,实验结果与CFD模拟结果非常吻合,表明分辨率加倍的1D-WMST技术为验证扁平火焰燃烧器的火焰扁平度提供了一种非侵入性,可靠且低成本的方法。

著录项

  • 来源
    《Applied physics》 |2015年第3期|407-416|共10页
  • 作者单位

    Beihang Univ, Sch Instrument Sci & Optoelect Engn, Minist Educ, Key Lab Precis Optomech Technol, Beijing 100191, Peoples R China;

    Beihang Univ, Sch Instrument Sci & Optoelect Engn, Minist Educ, Key Lab Precis Optomech Technol, Beijing 100191, Peoples R China;

    Beihang Univ, Sch Instrument Sci & Optoelect Engn, Minist Educ, Key Lab Precis Optomech Technol, Beijing 100191, Peoples R China;

    Beihang Univ, Sch Instrument Sci & Optoelect Engn, Minist Educ, Key Lab Precis Optomech Technol, Beijing 100191, Peoples R China;

    Univ Edinburgh, Sch Engn, Edinburgh EH9 3JL, Midlothian, Scotland;

    Univ Edinburgh, Sch Engn, Edinburgh EH9 3JL, Midlothian, Scotland;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

  • 入库时间 2022-08-18 03:08:05

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号