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Article

Puncture of a Viscous Liquid Film Due to Droplet Falling

1
Center for Materials Technologies, Skolkovo Institute of Science and Technology, Bolshoy Boulevard 30, bld. 1, Moscow 121205, Russia
2
Department of Mechanical Engineering, York University; Toronto, ON M3J 1P3, Canada
*
Author to whom correspondence should be addressed.
Academic Editor: Manfredo Guilizzoni
Fluids 2022, 7(6), 196; https://doi.org/10.3390/fluids7060196
Received: 14 May 2022 / Accepted: 6 June 2022 / Published: 8 June 2022
(This article belongs to the Special Issue Fluids and Surfaces)
Droplet impact may rupture a liquid film on a non-wettable surface. The formation of a stable dry spot has only been studied in the inviscid case. Here, we examine the break-up of viscous films, and demonstrate the importance and role of the viscous dissipation in both film and droplet. A new model was therefore proposed to predict the necessary droplet energy to create a dry spot. It also showed that the dissipation contribution in film dominates when the ratio of the thicknesses to drop diameter is larger than 7/4. View Full-Text
Keywords: film rupture; drop impact; viscous dissipation film rupture; drop impact; viscous dissipation
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MDPI and ACS Style

Grishaev, V.G.; Bakulin, I.K.; Amirfazli, A.; Akhatov, I.S. Puncture of a Viscous Liquid Film Due to Droplet Falling. Fluids 2022, 7, 196. https://doi.org/10.3390/fluids7060196

AMA Style

Grishaev VG, Bakulin IK, Amirfazli A, Akhatov IS. Puncture of a Viscous Liquid Film Due to Droplet Falling. Fluids. 2022; 7(6):196. https://doi.org/10.3390/fluids7060196

Chicago/Turabian Style

Grishaev, Viktor G., Ivan K. Bakulin, Alidad Amirfazli, and Iskander S. Akhatov. 2022. "Puncture of a Viscous Liquid Film Due to Droplet Falling" Fluids 7, no. 6: 196. https://doi.org/10.3390/fluids7060196

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