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In relation to this article, we declare that there is no conflict of interest.
Publication history
Received November 29, 2023
Accepted March 20, 2024
articles This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
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Numerical Investigations of Collision Modes of Double Droplets on a Spherical Surface Based on the Phase Field Method

Hubei Key Laboratory of Mechanical Transmission and Manufacturing Engineering , Wuhan University of Science and Technology 1Key Laboratory of Metallurgical Equipment and Control Technology of Ministry of Education , Wuhan University of Science and Technology 2Hubei Longzhong Laboratory , Wuhan University of Technology Xiangyang Demonstration Zone
Korean Journal of Chemical Engineering, June 2024, 41(6), 1551-1566(16), https://doi.org/10.1007/s11814-024-00159-5

Abstract

Droplet collision on surface is widely existed in nature and industrial production. In our research, two-dimensional rotational

models and three-dimensional symmetric models based on the phase fi eld method have been developed to simulate the

collisions of continuous droplets on spherical surfaces. Using parametric dimensionless, the spreading diameter of the

coalescing droplets, the width of the liquid bridge between the droplets, and the moving velocity of the three-phase contact

line are obtained. When the two droplets are coaxial, the collision velocity of the droplets increases, and the radial velocity

of the liquid bridge also increases. Due to the increase of droplet energy, both the fi rst and second maximum spreading are

increased, but the characteristic spreading t s time is reduced. When using the modifi ed capillary inertia time

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