Effect of Liquid Properties on the Characteristics of Collisions between Droplets and Solid Particles

Effect of Liquid Properties on the Characteristics of Collisions between Droplets and Solid Particles

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.
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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