IMECH-IR  > 国家微重力实验室
Near-limit flame spread in low-speed opposed and concurrent flows over thick fuels
Wang SF(王双峰); Zhu F(朱峰)
Source PublicationProceedings of the International Astronautical Congress, IAC
2015
Conference Name66th International Astronautical Congress 2015: Space - The Gateway for Mankind's Future, IAC 2015
Conference DateOctober 12, 2015 - October 16, 2015
Conference PlaceJerusalem, Israel
Abstract(1) In the low-velocity flow regime considered, at a given flow velocity, the opposed flame spreads much faster than the concurrent flame. In opposed flows, the flame spread rate also depends on oxygen concentration, while the spread rate of concurrent flame appears less sensitive to the variation of oxygen concentration. (2) For opposed spread, the non-dimensional flame spread rates are correlated well with the Damköhler number. The entire flame spread domain can be divided into three regimes with respect to DaEST. For concurrent spread, the flame spread rates agree with the theoretical prediction in general. However, for both flame modes, the spread rates in low-velocity gas flows may deviate from theoretical predictions due to radiative heat (3) Concurrent flame spread has a wider flammable range than opposed case. Beyond the flammability boundary of opposed spread, there is an additional flammable area for concurrent spread, where the spreading flame is sustainable in concurrent mode only. (4) The present narrow channel tests provide significant information about the flame spread over thick fuels in low-velocity flows. However, more studies, especially microgravity experiments, are clearly needed to validate some of the findings in a quantitative manner.
KeywordFlame Spread Flame Spread Rate Low Velocities Microgravity Experiments Narrow Channel Opposed Flow Oxygen Concentrations Radiative Heat
DepartmentNML微重力两相流与燃烧
ISBN9781510818934
Indexed ByEI
Language英语
Document Type会议论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/60170
Collection国家微重力实验室
Recommended Citation
GB/T 7714
Wang SF,Zhu F. Near-limit flame spread in low-speed opposed and concurrent flows over thick fuels[C],2015.
Files in This Item: Download All
File Name/Size DocType Version Access License
Cp2016-055.pdf(34KB)会议论文 开放获取CC BY-NC-SAView Download
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[王双峰]'s Articles
[朱峰]'s Articles
Baidu academic
Similar articles in Baidu academic
[王双峰]'s Articles
[朱峰]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[王双峰]'s Articles
[朱峰]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Cp2016-055.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.