Convection velocities in gas and liquid phases during fragmentation of droplets; Experimental Thermal and Fluid Science; Vol. 129

Convection velocities in gas and liquid phases during fragmentation of droplets; Experimental Thermal and Fluid Science; Vol. 129

Бібліографічні деталі
Parent link:Experimental Thermal and Fluid Science
Vol. 129.— 2021.— [110476, 18 p.]
Співавтори: Национальный исследовательский Томский политехнический университет Исследовательская школа физики высокоэнергетических процессов, Национальный исследовательский Томский политехнический университет Инженерная школа энергетики Научно-образовательный центр И. Н. Бутакова (НОЦ И. Н. Бутакова)
Інші автори: Strizhak P. A. Pavel Alexandrovich, Volkov R. S. Roman Sergeevich, Moussa O. Omar, Tarlet D. Dominique, Bellettre J. Jerome
Резюме:Title screen
The paper presents experimental research findings for the convection velocities in the gas and liquid phases during micro-explosive fragmentation of droplets heated on a solid surface. The experiments were conducted with two types of bi-component droplets: emulsified and unmixed ones. A scheme with an induction heater in the temperature range of 75–550 °C was used. The convection velocities were recorded in droplets during heating, rapid evaporation, partial fragmentation in the puffing regime and full fragmentation in the micro-explosion regime. Typical shapes and dimensions of the origins of vortex formation were distinguished. The velocities of vapor outflow from the surface of the droplet and secondary fragments as a result of droplet breakup were established. Their variation ranges were determined. The effect of the surface temperature, droplet dimensions, component composition of liquid and type of droplets on these velocities was identified. The research findings were compared with the previous data obtained in experiments with a droplet fixed on a holder in a hot air flow. We showed threshold convection velocities in droplets sufficient for their breakup during puffing and micro-explosion regimes. General approximations were derived for the convection velocities in the droplets under study versus the substrate temperature.
Режим доступа: по договору с организацией-держателем ресурса
Мова:Англійська
Опубліковано: 2021
Предмети:
электронный ресурс
труды учёных ТПУ
droplets
micro-explosion
convection
velocities
particle image velocimetry
particle tracking velocimetry
капли
микровзрывы
конвекция
скорости
Онлайн доступ:https://doi.org/10.1016/j.expthermflusci.2021.110476
Формат: Електронний ресурс Частина з книги
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=665214

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