Imaging and diagnostics of turbulent methane-air premixed flames by acetone-OH simultaneous PLIF
Imaging and diagnostics of turbulent methane-air premixed flames by acetone-OH simultaneous PLIF
复制标题
通过丙酮-OH同步 PLIF 对湍流甲烷-空气预混火焰进行成像和诊断
DOI：
10.1007/bf03181916
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发表时间：
2008
影响因子：
1.7
通讯作者：
H. Yamashita
中科院分区：
文献类型：
--
作者：
Y. Nakamura;S. Manome;H. Yamashita
提出了一种基于丙酮-OH同步PLIF的超稀燃烧诊断策略。在燃料流和燃烧产生的OH中接种丙酮分别作为\ldunburned\rd和\ldburned\rd区域的标记。由于丙酮和OH在适当燃烧时不会共存，因此可以检测到丙酮和OH荧光之间的信号\ldvalley\rd（暗区），其对应于火焰区;代表燃烧状态。当前成像技术所需的系统是一个激光器和一个探测器与带通滤波器的组合。滤光片的透射率特性和丙酮接种率是获得清晰成像的关键问题，我们发现，为了达到这一目的，它们有适当的组合。湍流预混火焰的成像演示显示了该方案在复杂火焰诊断中的实用性和适用性：通过该方法可以清楚地获得独特的火焰破碎结构（分别存在ldunburned和ldburned岛）。
A strategy of diagnostics of ultra-lean combustion based on acetone-OH simultaneous PLIF is presented. Acetone seeded in the fuel flow and combustion-generated OH work for a marker of \ldunburned\rd and \ldburnt\rd zones, respectively. Since acetone and OH does not coexist when the proper combustion takes place, the signal \ldvalley\rd (dark zone) between acetone and OH fluorescence can be detected, which corresponds to flame zone; representative of the combustion status. System required for current imaging technique is one-laser and one-detector combination with \ldturned\rd band-pass filter. Transmittance characteristics of the filter and acetone-seeding rate are key issues to attain clear imaging, and we found that there is proper combination of them for that purpose. Imaging demonstration for the turbulent premixed flames shows the usefulness and applicability of this scheme on complex flame diagnostics: unique flame broken flame structure (\ldunburned\rd or \ldburnt\rd islands exist separately) are clearly obtained by this approach.
影响因子：
2.1
作者：
M. Tanahashi;S. Murakami;G. Choi;Y. Fukuchi;T. Miyauchi
通讯作者：
M. Tanahashi;S. Murakami;G. Choi;Y. Fukuchi;T. Miyauchi
湍流特性对氢气-空气预混火焰局部火焰结构的影响。
DOI：
--
发表时间：
2004
期刊：
Journal of Turbulence Vol.5
影响因子：
--
作者：
Y.Nada;M.Tanahashi;T.Miyauchi
通讯作者：
T.Miyauchi