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Fizika Goreniya i Vzryva, 2016, Volume 52, Issue 3, Pages 105–113
DOI: https://doi.org/10.15372/FGV20160315
(Mi fgv330)
 

This article is cited in 8 scientific papers (total in 8 papers)

Time of hot-spot formation in shock compression of microballoons in a condensed medium

S. M. Karakhanova, A. V. Plastinina, D. S. Bordzilovskiib, S. A. Bordzilovskiiac

a Lavrentyev Institute of Hydrodynamics of Siberian Branch of the Russian Academy of Sciences, Novosibirsk, 630090, Russia
b Institute of Laser Physics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090, Russia
c Novosibirsk State University, Novosibirsk, 630090, Russia
Full-text PDF (212 kB) Citations (8)
Abstract: The optical thermal radiation arising from the shock collapse of glass or polymer microballoons in a transparent condensed medium (water or polymerized epoxy resin) was detected. The temporal characteristics of the detected radiation in the pressure range 0.5–29 GPa at different viscosities of the material surrounding the pore were determined. The brightness temperature of hot spots was estimated to be 1600–3200 K at a pressure of 2–29 GPa. The length of the leading edge of the radiation pulse corresponding to the time of hot-spot formation increases from 2 $\cdot$ 10$^{-8}$ to 30 $\cdot$ 10$^{-8}$ s, depending on the shock-wave intensity and the viscosity of the material surrounding the pore. Analysis of the data shows that in the pressure range 5–29 GPa, hot-spot formation is dominated by the hydrodynamic mechanism of collapse and in the range 0.5–5 GPa, by the viscoplastic mechanism.
Keywords: shock wave, microballoons, pore collapse, hot spots, viscosity.
Received: 15.04.2015
English version:
Combustion, Explosion and Shock Waves, 2016, Volume 52, Issue 3, Pages 350–357
DOI: https://doi.org/10.1134/S0010508216030151
Bibliographic databases:
Document Type: Article
UDC: 533.06.011
Language: Russian
Citation: S. M. Karakhanov, A. V. Plastinin, D. S. Bordzilovskii, S. A. Bordzilovskii, “Time of hot-spot formation in shock compression of microballoons in a condensed medium”, Fizika Goreniya i Vzryva, 52:3 (2016), 105–113; Combustion, Explosion and Shock Waves, 52:3 (2016), 350–357
Citation in format AMSBIB
\Bibitem{KarPlaBor16}
\by S.~M.~Karakhanov, A.~V.~Plastinin, D.~S.~Bordzilovskii, S.~A.~Bordzilovskii
\paper Time of hot-spot formation in shock compression of microballoons in a condensed medium
\jour Fizika Goreniya i Vzryva
\yr 2016
\vol 52
\issue 3
\pages 105--113
\mathnet{http://mi.mathnet.ru/fgv330}
\crossref{https://doi.org/10.15372/FGV20160315}
\elib{https://elibrary.ru/item.asp?id=26136209}
\transl
\jour Combustion, Explosion and Shock Waves
\yr 2016
\vol 52
\issue 3
\pages 350--357
\crossref{https://doi.org/10.1134/S0010508216030151}
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  • https://www.mathnet.ru/eng/fgv/v52/i3/p105
  • This publication is cited in the following 8 articles:
    Citing articles in Google Scholar: Russian citations, English citations
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