Evolution of cavity size and energy conversion due to droplet impact on a water surface

Evolution of cavity size and energy conversion due to droplet impact on a water surface

[Display omitted] The deformation characteristics of the cavity due to droplet impact on a water surface are experimentally investigated. Dimensional analysis shows that the characteristic values of time, depth, and horizontal diameter can be taken as 10−3 times the ratio of surface tension to the p...

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Veröffentlicht in:Chinese journal of chemical engineering 2023-10, Vol.62 (10), p.261-269
Hauptverfasser: Xu, Wan, Yuan, Dekui, Sun, Hongguang, Guo, Tong, Zhao, Fengze, Ma, Huimin, Liu, Changgen
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Sprache:eng
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Cavity size
Droplet impact
Energy conversion
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container_end_page 269
container_issue 10
container_start_page 261
container_title Chinese journal of chemical engineering
container_volume 62
creator Xu, Wan
Yuan, Dekui
Sun, Hongguang
Guo, Tong
Zhao, Fengze
Ma, Huimin
Liu, Changgen
description [Display omitted] The deformation characteristics of the cavity due to droplet impact on a water surface are experimentally investigated. Dimensional analysis shows that the characteristic values of time, depth, and horizontal diameter can be taken as 10−3 times the ratio of surface tension to the product of viscosity coefficient and gravitational acceleration, the maximum depth, and the maximum horizontal diameter, respectively. The evolutions of the dimensionless cavity sizes for different values of Weber number (We) coincide for 220 
doi_str_mv 10.1016/j.cjche.2023.04.001
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Dimensional analysis shows that the characteristic values of time, depth, and horizontal diameter can be taken as 10−3 times the ratio of surface tension to the product of viscosity coefficient and gravitational acceleration, the maximum depth, and the maximum horizontal diameter, respectively. The evolutions of the dimensionless cavity sizes for different values of Weber number (We) coincide for 220 &lt; We &lt; 686. A partial-sphere model of cavity is established based on experimental observations. Energy models are then derived, and the energy conversions are calculated to identify the relationship between these conversions and cavity deformation. It is found that the kinetic energy model established under the hypothesis proposed by Leng is no longer applicable when the dimensionless time t* &lt; 3.5, owing to deviations from the geometric model.</description><identifier>ISSN: 1004-9541</identifier><identifier>DOI: 10.1016/j.cjche.2023.04.001</identifier><language>eng</language><publisher>Elsevier B.V</publisher><subject>Cavity size ; Droplet impact ; Energy conversion</subject><ispartof>Chinese journal of chemical engineering, 2023-10, Vol.62 (10), p.261-269</ispartof><rights>2023</rights><rights>Copyright © Wanfang Data Co. Ltd. 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Dimensional analysis shows that the characteristic values of time, depth, and horizontal diameter can be taken as 10−3 times the ratio of surface tension to the product of viscosity coefficient and gravitational acceleration, the maximum depth, and the maximum horizontal diameter, respectively. The evolutions of the dimensionless cavity sizes for different values of Weber number (We) coincide for 220 &lt; We &lt; 686. A partial-sphere model of cavity is established based on experimental observations. Energy models are then derived, and the energy conversions are calculated to identify the relationship between these conversions and cavity deformation. 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source Elsevier ScienceDirect Journals; Alma/SFX Local Collection
subjects Cavity size
Droplet impact
Energy conversion
title Evolution of cavity size and energy conversion due to droplet impact on a water surface
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