...
首页> 外文期刊>Combustion and Flame >Visualizing CH~* chemiluminescence in sooting flames
【24h】

Visualizing CH~* chemiluminescence in sooting flames

机译:可视化烟so火焰中的CH〜*化学发光

获取原文
获取原文并翻译 | 示例
           

摘要

This investigation presents and validates a method to visualize CH~* chemiluminescence in a sooting non-premixed flame. Excited-state CH radicals (A~2△ → X~2Π, denoted CH~*), upon relaxing, emit a photon in the visible portion of the electromagnetic spectrum, giving what is seen as a faint blue glow. Optical methods, especially those that rely on passive emission, provide a simple and non-intrusive means to characterize combustion; however, in the presence of hot solid particles - particularly soot - chemiluminescent emission can be obscured by blackbody radiation. This paper describes an image post-processing technique where flame emission is imaged through multiple filters near the CH~* emission band in order to infer and filter the contribution of continuum radiation from soot in the CH~* band. This information is then used to produce a soot-free image of CH~* chemiluminescence.
机译:这项研究提出并验证了一种在烟灰非预混火焰中可视化CH〜*化学发光的方法。激发态的CH自由基(A〜2△→X〜2Π,表示为CH〜*)在弛豫后会在电磁光谱的可见光部分发射光子,产生淡淡的蓝色发光。光学方法,特别是那些依靠无源发射的方法,提供了一种简单且非侵入性的方法来表征燃烧;但是,在存在热固体颗粒(特别是烟灰)的情况下,黑体辐射可能会掩盖化学发光。本文介绍了一种图像后处理技术,其中通过在CH〜*发射带附近通过多个滤镜对火焰发射进行成像,以推断和过滤CH〜*波段中来自烟灰的连续辐射的贡献。然后,该信息将用于生成CH〜*化学发光的无烟灰图像。

著录项

  • 来源
    《Combustion and Flame》 |2013年第10期|2275-2278|共4页
  • 作者单位

    University of California, Irvine, Department of Mechanical and Aerospace Engineering, 4200 Engineering Gateway, Irvine, CA 92697, USA;

    University of California, Irvine, Department of Mechanical and Aerospace Engineering, 4200 Engineering Gateway, Irvine, CA 92697, USA;

  • 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

    Chemiluminescence; Flames; Image processing; CH;

    机译:化学发光火焰图像处理;CH;

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