Abstract
On the impact of viscous droplets on wet solid surfaces for spray painting processes
Highlights
The collision of liquid drops with solid surfaces occurs in many engineering applications such as spray painting, spray cooling, and ink-jet printing
When a small droplet with a low impact speed falls onto a wet surface, the target surface is hardly disturbed and a lump is formed above the liquid layer
The impact on a wet surface of a droplet whose Reynolds number is greater than 10 results in a cratering collision
Summary
The collision of liquid drops with solid surfaces occurs in many engineering applications such as spray painting, spray cooling, and ink-jet printing. The motivation for the investigation lies in the huge industrial demand of understanding air entrapment during drop impact, which may lead to so-called pinholes after drying and baking, and the final wavy surface structure ( called orange peel) in spray painting applications. The impact of liquid droplets on dry and wet surfaces is a complex multi-phase flow problem and has been of research interest for more than a century [1,2]. The phenomena of drop impact on a wet surface can be classified as floating, bouncing, coalescence and splashing [3]. Many experiments and numerical simulations [4,5,6,7] were performed for estimating the thresholds of these phenomena, understanding vortex rings after coalescing impact, determining splashing characteristics and studying entrainment of gas bubbles
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: International Conference on Liquid Atomization and Spray Systems (ICLASS)
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
