Bounced Model of Droplet on Moving Substrate

TL;DR

This paper develops criteria for droplet bouncing on moving substrates, investigates wind effects, and analyzes contact angles and fluid dynamics to understand droplet behavior in such conditions.

Contribution

It introduces new bouncing criteria for droplets on moving substrates, including wind effects, and analyzes contact angles and fluid dynamics.

Findings

Bouncing criterion Cr > 1 for no splash

Wind modifies the bouncing criterion to Cr_wind

Contact angle and Reynolds equation are characterized

Abstract

Firstly, we get the completely bouncing criteria Cr for droplet on moving substrate. The bouncing without splashing condition is $\mathrm{Cr}>1$. Then, we mainly research the effect of wind field for droplet, and get the completely bouncing criteria $\mathrm{Cr}_{\mathrm{wind}}$ for droplet with wind. Lastly, we get the contact angle of droplet on the moving substrate and calculate the Time Independent Reynolds Equation with $rho$ and $\mu$ are constant.