Effects of optical diagnostic techniques on the accuracy of laminar flame speeds measured from Bunsen flames: OH* chemiluminescence, OH-PLIF and acetone/kerosene-PLIF | |
Wu Y(武毅); Yu XL(余西龙); Li F(李飞); Frédéric Grisch | |
刊名 | Measurement Science and Technology |
2018-01 | |
卷号 | 29期号:1页码:015204 |
关键词 | OH* chemiluminescence OH-PLIF acetone-PLIF kerosene-PLIF laminar flame speed |
ISSN号 | 0957-0233 |
DOI | 10.1088/1361-6501/aa92d7 |
英文摘要 | The effects of optical diagnostic techniques on the accuracy of laminar flame speed measured from Bunsen flames were investigated. Laminar flame speed measurements were conducted for different fuel/air mixtures including CH4/air, acetone/air and kerosene (Jet A-1)/air in applying different optical diagnostic techniques, i.e. OH* chemiluminescence, OH-PLIF and acetone/kerosene-PLIF. It is found that the OH* chemiluminescence imaging technique cannot directly derive the location of the outer edge of the fresh gases and it is necessary to correct the position of the OH* peak to guarantee the accuracy of the measurements. OH-PLIF and acetone/kerosene-PLIF respectively are able to measure the disappearance of the fresh gas contour and the appearance of the reaction zone. It shows that the aromatic-PLIF technique gives similar laminar flame speed values when compared with those obtained from corrected OH* chemiluminescence images. However, discrepancies were observed between the OH-PLIF and the aromatic-PLIF techniques, in that OH-PLIF slightly underestimates laminar flame speeds by up to 5%. The difference between the flame contours obtained from different optical techniques are further analysed and illustrated with 1D flame structure simulation using detailed kinetic mechanisms. |
分类号 | 二类 |
URL标识 | 查看原文 |
WOS关键词 | BURNING VELOCITY ; ELEVATED-TEMPERATURES ; MIXTURES ; COMBUSTION ; PRESSURE ; FLUORESCENCE ; HYDROCARBONS ; METHANE/AIR ; IGNITION ; DILUTION |
WOS研究方向 | Engineering, Multidisciplinary ; Instruments & Instrumentation |
语种 | 英语 |
WOS记录号 | WOS:000417988300001 |
内容类型 | 期刊论文 |
源URL | [http://dspace.imech.ac.cn/handle/311007/72205] |
专题 | 力学研究所_高温气体动力学国家重点实验室 |
推荐引用方式 GB/T 7714 | Wu Y,Yu XL,Li F,et al. Effects of optical diagnostic techniques on the accuracy of laminar flame speeds measured from Bunsen flames: OH* chemiluminescence, OH-PLIF and acetone/kerosene-PLIF[J]. Measurement Science and Technology,2018,29(1):015204. |
APA | Wu Y,Yu XL,Li F,&Frédéric Grisch.(2018).Effects of optical diagnostic techniques on the accuracy of laminar flame speeds measured from Bunsen flames: OH* chemiluminescence, OH-PLIF and acetone/kerosene-PLIF.Measurement Science and Technology,29(1),015204. |
MLA | Wu Y,et al."Effects of optical diagnostic techniques on the accuracy of laminar flame speeds measured from Bunsen flames: OH* chemiluminescence, OH-PLIF and acetone/kerosene-PLIF".Measurement Science and Technology 29.1(2018):015204. |
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