Technical Physics Letters
To authors
Intensities of microexplosive fragmentation of two-liquid droplets
Antonov D. V.
1, Fedorenko R. M.
1, Volkov R. S.
1
1Tomsk Polytechnic University, Tomsk, Russia
Email: dva14@tpu.ru, rmfedorenko@tpu.ru, romanvolkov@tpu.ru
The paper presents the results of experimental study of intense fragmentation of two-liquid droplets of the core/shell type (water/flammable liquid) during heating in a high-temperature medium. Water concentration in the two-liquid droplets was 10± 2 vol.%. Ranges of variation in fragmentation intensities in the puffing and microexplosion modes proved to be < 150 s-1 and > 500 s-1, respectively. The study has shown that, as the gas medium temperature increases in the range of 600± 10 to 750± 10 K, the microexplosion fragmentation intensities increase more than 5 times in the case of isolated two-liquid water/rapeseed oil droplets, 1.5 times in the case of water/diesel fuel droplets, and 2.4 times in the case of water/kerosene droplets. Keywords: fragmentation intensity, puffing, microexplosion, two-liquid droplet, rapeseed oil, kerosene.
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