Coatings, Vol. 7, Pages 81: Maximum Deformation Ratio of Droplets of Water-Based Paint Impact on a Flat Surface

By Weiwei Xu In this research, the maximum deformation ratio of water-based paint droplets impacting and spreading onto a flat solid surface was investigated numerically based on the Navier–Stokes equation coupled with the level set method. The effects of droplet size, impact velocity, and equilibrium contact angle are taken into account. The maximum deformation ratio increases as droplet size and impact velocity increase, and can scale as We1/4, where We is the Weber number, for the case of the effect of the droplet size. Finally, the effect of equilibrium contact angle is investigated, and the result shows that spreading radius decreases with the …read more

Source:: MDPI-Pubications


Comments are closed.