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Fizika Goreniya i Vzryva, 2020, Volume 56, Issue 4, Pages 46–55
DOI: https://doi.org/10.15372/FGV20200404
(Mi fgv693)
 

This article is cited in 1 scientific paper (total in 1 paper)

Ignition delay of fluorinated ethylene propylene wire insulation in a forced flow field in microgravity

K. Wanga, J. Fanga, J.-W. Wanga, S.-M. Zhenga, J.-F. Guanb, H. R. Shaha, J.-J. Wanga, Y.-M. Zhanga

a University of Science and Technology of China, 230026, Hefei, Anhui, China
b Tsinghua University, 230601, Hefei, Anhui, China
Full-text PDF (777 kB) Citations (1)
Abstract: Fluorinated ethylene propylene (FEP) wire insulation ignition is investigated in a forced flow field in microgravity and normal gravity with a continuous current. First, FEP insulation melts and decomposes, causing jet bursting in both normal gravity and microgravity. Second, the forced flow and gravity produce minor effects on the core heating and bursting time, while the pyrolysis time increases slightly with increasing air velocity. Third, the positively stretch rates in terms of the velocity gradients are higher in microgravity. Both the forced flow and gravity have significant effects on the induction time, which is dependent on the stretch rate and Damköhler number. The induction time increases with increasing air velocity, and it is higher in microgravity. Finally, the ignition delay time is dominated by the core heating and bursting time, while its bigger value and faster increase in microgravity with increasing air velocity are dominated by the induction time.
Keywords: microgravity, ignition, FEP wire insulation, bursting jet, stretched flow.
Funding agency Grant number
National Natural Science Foundation of China 51576186
51636008
51323010
Chinese Academy of Sciences QYZDB-SSW-JSC029
National Key Research and Development Program of China 2016YFC0801504
Fundamental Research Funds for the Central Universities of China WK2320000042
Received: 13.01.2020
Revised: 19.02.2020
English version:
Combustion, Explosion and Shock Waves, 2020, Volume 56, Issue 4, Pages 412–420
DOI: https://doi.org/10.1134/S0010508220040048
Bibliographic databases:
Document Type: Article
UDC: 536.46
Language: Russian
Citation: K. Wang, J. Fang, J.-W. Wang, S.-M. Zheng, J.-F. Guan, H. R. Shah, J.-J. Wang, Y.-M. Zhang, “Ignition delay of fluorinated ethylene propylene wire insulation in a forced flow field in microgravity”, Fizika Goreniya i Vzryva, 56:4 (2020), 46–55; Combustion, Explosion and Shock Waves, 56:4 (2020), 412–420
Citation in format AMSBIB
\Bibitem{WanFanWan20}
\by K.~Wang, J.~Fang, J.-W.~Wang, S.-M.~Zheng, J.-F.~Guan, H.~R.~Shah, J.-J.~Wang, Y.-M.~Zhang
\paper Ignition delay of fluorinated ethylene propylene wire insulation in a forced flow field in microgravity
\jour Fizika Goreniya i Vzryva
\yr 2020
\vol 56
\issue 4
\pages 46--55
\mathnet{http://mi.mathnet.ru/fgv693}
\crossref{https://doi.org/10.15372/FGV20200404}
\elib{https://elibrary.ru/item.asp?id=43152524}
\transl
\jour Combustion, Explosion and Shock Waves
\yr 2020
\vol 56
\issue 4
\pages 412--420
\crossref{https://doi.org/10.1134/S0010508220040048}
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  • https://www.mathnet.ru/eng/fgv/v56/i4/p46
  • This publication is cited in the following 1 articles:
    Citing articles in Google Scholar: Russian citations, English citations
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    Fizika Goreniya i Vzryva Fizika Goreniya i Vzryva
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