Effect of Liquid Properties on the Characteristics of Collisions between Droplets and Solid Particles; Applied Sciences; Vol. 12, iss. 21

Effect of Liquid Properties on the Characteristics of Collisions between Droplets and Solid Particles; Applied Sciences; Vol. 12, iss. 21

Bibliographic Details
Parent link:Applied Sciences
Vol. 12, iss. 21.— 2022.— [10747, 19 p.]
Corporate Authors: Национальный исследовательский Томский политехнический университет Инженерная школа энергетики Научно-образовательный центр И. Н. Бутакова (НОЦ И. Н. Бутакова), Национальный исследовательский Томский политехнический университет Исследовательская школа физики высокоэнергетических процессов
Other Authors: Islamova A. G. Anastasiya Gomilievna, Tkachenko P. P. Pavel Petrovich, Shlegel N. E. Nikita Evgenjevich, Kuznetsov G. V. Geny Vladimirovich
Summary:Title screen
The characteristics of the collisions of droplets with solid particles (52,100 steel) were experimentally studied when varying the key liquid properties: viscosity (1–6.3 mPa·s), surface tension (72.69–36.1 mN/m) and interfacial (liquid-liquid) tension (3.41–42.57 mN/m). Distilled water, aqueous solutions of glycerol, surfactants and diesel emulsions were used. The experimental conditions corresponded to the following ranges: Weber number 5–450, Ohnesorge number 0.001–0.03, Reynolds number 0.1–1000, capillary number 0.01–0.3. Droplet-particle collision regimes (agglomeration, stretching separation) were identified and the characteristics of secondary liquid fragments (size, number) were determined. Droplet-particle interaction regime maps in the We(Oh) and Re(Ca) systems were constructed. Equations describing the transition boundaries between the droplet-particle interaction regimes were obtained. The equations take the form: We = a · Oh + c. For the conditions of the droplet-particle interaction, the relationship We = 2214 · Oh + 49.214 was obtained. For the interaction with a substrate: We = 1.0145 · Oh + 0.0049. The experimental results were compared with the characteristics of collisions of liquid droplets with each other. Differences in the characteristics of secondary atomization of droplets as a result of collisions were identified. Guidelines were provided for applying the research findings to the development of liquid droplet secondary atomization technologies in gas-vapor-droplet applications.
Language:English
Published: 2022
Subjects:
электронный ресурс
труды учёных ТПУ
liquid droplets
solid particles
collisions
interaction regimes
liquid properties
child droplets
Online Access:https://doi.org/10.3390/app122110747
Format: Electronic Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=668521

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