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Numerical simulation of the effect of droplet impact parameters on crown splash size
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Numerical simulation of the effect of droplet impact parameters on crown splash size
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Journal Article
Numerical simulation of the effect of droplet impact parameters on crown splash size
2025
Overview
The droplet-impact thin layer of fluid process is widespread in nature and industry, and its kinetic behaviour is complex, involving multiphase fluid dynamics, interfacial deformation, and coupling of multiscale phenomena. To study the physical mechanisms of this process, numerical simulation becomes an important tool. This study employs Fluent software to conduct a numerical analysis of droplet impingement on a thin thin layer of fluids. The simulation utilizes both the finite volume approach and the volume of fluid (VOF) technique for modeling the multiphase flow phenomenon. The effects of different droplet diameters, droplet velocities, and thin layer of fluid thicknesses on the behavior of impact dynamics were investigated for splash heights and diameters, and the results showed that: The effect of each parameter on splash versus splatter is evident after the droplet impacts the thin layer of fluid. As the thin layer of fluid thickens, the diameter of the coronal splash and the height of the splash decrease, and secondary splashing is inhibited, and the opposite is true when the thin layer of fluid thins; an increase in droplet diameter and droplet velocity results in a significant increase in splash size and increased secondary splashing; a decrease in droplet diameter and droplet velocity results in limited splashing and splashing.
Publisher
IOP Publishing
Subject
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