IMECH-IR  > 力学所知识产出(1956-2008)
Effect of Turbulence on Flame Propagation in Cornstarch Dust-Air Mixtures
Wang SF(王双峰); Pu YK(浦以康); Jia F(贾复); Gutkowski A; Jarosinski J; Wang, SF (reprint author), Chinese Acad Sci, Natl Micrograv Lab, Inst Mech, Beijing 100080, Peoples R China.
Source PublicationJOURNAL OF THERMAL SCIENCE
2006
Volume15Issue:2Pages:186-192
ISSN1003-2169
AbstractFollowing the quantitative determination of dust cloud parameters, this study investigated the flame propagation through cornstarch dust clouds in a vertical duct of 780 mm height and 160x160 mm square cross section, and gave particular attention to the effect of turbulence on flame characteristics. The turbulence induced by dust dispersion process was measured using a particle image velocimetry (PIV) system. Upward propagating dust flames were visualized with direct light and shadow photography. The results show that a critical value of the turbulence intensity can be specified below which laminar flame propagation would be established. This transition condition is about 10 cm/s. The measured propagation speed of laminar flames appears to be in the range of 0.45-0.56 m/s, consistent with the measurements reported in the literature. For the present experimental conditions, the flame speed is little sensitive to the variations in dust concentration. Some information on the flame structure was revealed from the shadow records, showing the typical heterogeneous feature of dust combustion process.
KeywordDust Flame Flame Propagation Dust Dispersion Process Turbulence Cornstarch
DOI10.1007/s11630-006-0186-4
Indexed BySCI
Language英语
WOS IDWOS:000208229000016
WOS Research AreaThermodynamics ; Engineering
WOS SubjectThermodynamics ; Engineering, Mechanical
Funding OrganizationChinese Academy of Sciences (CAS) [KJCX2-SW-L05] ; Marie Curie Transfer of Knowledge Project [ECHIRA NR 509849]
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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/58457
Collection力学所知识产出(1956-2008)
Corresponding AuthorWang, SF (reprint author), Chinese Acad Sci, Natl Micrograv Lab, Inst Mech, Beijing 100080, Peoples R China.
Recommended Citation
GB/T 7714
Wang SF,Pu YK,Jia F,et al. Effect of Turbulence on Flame Propagation in Cornstarch Dust-Air Mixtures[J]. JOURNAL OF THERMAL SCIENCE,2006,15(2):186-192.
APA 王双峰,浦以康,贾复,Gutkowski A,Jarosinski J,&Wang, SF .(2006).Effect of Turbulence on Flame Propagation in Cornstarch Dust-Air Mixtures.JOURNAL OF THERMAL SCIENCE,15(2),186-192.
MLA 王双峰,et al."Effect of Turbulence on Flame Propagation in Cornstarch Dust-Air Mixtures".JOURNAL OF THERMAL SCIENCE 15.2(2006):186-192.
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