Numerical simulation of liquid-layer breakup on a moving wall due to an impinging jet
نویسندگان
چکیده
Jet-wiping is a hydrodynamic method for controlling the liquid film thickness in a coating process. In industrial conditions, the jet is generally turbulent. When the jet wipes a liquid film, it usually induces violent film instability called splashing. The instability is characterized by the ejection of droplets from the runback flow. Consequently, it can degrade the final coating quality since some of droplets can be reattached to the liquid film. The simulation result shows the main features of the liquid-layer breakup due to an impinging jet such as droplet trajectories.
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