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- In relation to this article, we declare that there is no conflict of interest.
- Publication history
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Received November 29, 2023
Accepted March 20, 2024
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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
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Numerical Investigations of Collision Modes of Double Droplets on a Spherical Surface Based on the Phase Field Method
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
