Computational study of early-time droplet impact dynamics on textured and lubricant-infused surfaces

In the present work, simulation results are obtained to characterize the liquid drop impingement and pinch-off mechanism on a hemispherical substrate. Several critical stages are anticipated during the entire impact process. Various nondimensional parameters, including the diameter ratio (D h /D o ), contact angle (θ), Ohnesorge number (Oh), Bond number (Bo), and Weber number (We), are implemented in the characterization of fluidic mechanisms involved in collision, spreading, and detachment with the solid stationary target. We have furnished numerical phase contours to comprehend qualitatively the fluidic behavior of liquid mass during the entire collision cycle. We have characterized the maximum deformation factor (β f, max ) by considering the above-mentioned pertinent quantities. There is a discernible increasing trend in β f, max as We gradually increases for a given θ and D h /D o . Again, β f, max constantly reduces as the value of Oh grows for a given value of We and D h /D o . Again, the value of entrapped gaseous volume (V*) constantly drops down as the surface becomes hydrophilic to superhydrophobic for a given value of We. We have strived to generate a regime plot on the Oh−We plane for different D h /D o and contact angles to address the distinguished zones based on the entrapped gaseous bubble. Efforts are also made to develop a correction for β f, max . The developed correlation strongly agrees with the simulated predictions to within ±7%. Lastly, a theoretical model is devised to forecast the deformation factor, demonstrating near-match with the numerical outcomes.

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Computational study of early-time droplet impact dynamics on textured and lubricant-infused surfaces

Cited by 3 publications

References 52 publications

Numerical investigation of VOSET and Enthalpy-Porosity method-based freezing process of a supercooled water droplet impacting an isolated vertical plate

Numerical investigation of VOSET and Enthalpy-Porosity method-based freezing process of a supercooled water droplet impacting an isolated vertical plate

The impact, freezing, and melting processes of a supercooled water droplet onto a cold slippery liquid-infused porous surface

Characterization of Droplet Collision and Breakup on a Hemispherical Target

Contact Info

Product

Resources

About