On the collision of a droplet with a V-shaped wall

Wu, Guoqiang; Chen, Sheng; Du, Wenhui; Zeng, Sibo; Yu, Yang; Zhai, Shuai; Wang, Yu

doi:10.1016/j.icheatmasstransfer.2022.106269

International Communications in Heat and Mass Transfer

2022

DOI: 10.1016/j.icheatmasstransfer.2022.106269

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On the collision of a droplet with a V-shaped wall

Guoqiang Wu

Sheng Chen

Wenhui Du

et al.

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Simulation of droplet impact dynamics on V-shaped walls

Chen

2023

Theor. Comput. Fluid Dyn.

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This paper presents the morphological evolution characteristics of a droplet impacting a V-shaped wall by using the lattice Boltzmann method (LBM). Four parameters are investigated comprehensively. The parameters vary over wide ranges: surface wettability (60 o ≤ θ eq ≤ 120 o ), Weber number (102.27 ≤ We ≤ 3681.82), bending angle of the V-shaped wall (90 o ≤ θ ≤ 180 o ), and eccentricity ratio (0 ≤ b ≤ 0.5). Two types of collision are observed: deposition and breakage. For breakage, the number of satellite droplets increases against the increment of We. The splashing occurs for a high We. And the lamella ejection is observed on the hydrophilic wall and the neutral wall. The lamella ejection will be slight against the increase of θ eq , while it will become obvious against the increment of θ. In addition, the nondimensional spreading length, width, and height are measured and analyzed. A regime map is established based on We and θ.

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Simulation of droplet impact dynamics on V-shaped walls

Chen

2023

Theor. Comput. Fluid Dyn.

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Dynamic wetting characteristics of two droplets impacting a spherical dust particle

Zhang,

Jia,

Han

et al. 2024

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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Direct numerical simulation of a moving droplet impacting a moving particle: effects of particle–droplet density ratio, Bond number, and Reynolds number

Wu,

Chen

2023

Eur. Phys. J. Plus

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On the collision of a droplet with a V-shaped wall

Cited by 3 publications

References 50 publications

Simulation of droplet impact dynamics on V-shaped walls

Simulation of droplet impact dynamics on V-shaped walls

Dynamic wetting characteristics of two droplets impacting a spherical dust particle

Direct numerical simulation of a moving droplet impacting a moving particle: effects of particle–droplet density ratio, Bond number, and Reynolds number

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