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Updated: May 8, 2026

Film Control to Study Contributions of Waves to Droplet Impact Dynamics on Thin Flowing Liquid Films
Published on: August 18, 2018
Effect of hydrodynamic and fluid-solid interaction forces on the shape and stability of a droplet sedimenting on a
Hassan Farhat1, Sasidhar Kondaraju, Sang-Kwon Na
1Department of Mechanical Engineering, Wayne State University, Detroit, Michigan 48202, USA.
Abstract:
In this paper, we study the sedimentation of droplet onto horizontal surfaces using a Shan and Chen multicomponent lattice Boltzmann model [Shan and Chen, Phys. Rev. E 47, 1815 (1993)]. Numerical simulations are performed for static nonwetting droplets and are compared with a theoretical model. Further simulations are performed using wetting droplets and changing the wetting characteristics of the surface. Novel study of droplet sedimentation with different wetting characteristics of wall surface shows three different regimes of droplet shapes. The process of different regimes can be controlled by changing the wetting characteristics of surface. It is observed that the droplet attains nonequilibrium region as the attraction force of surrounding droplet with the wall increases. This can lead to eventual breakup of the droplet.
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