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Crater Depth after the Impact of Multiple Drops into Deep Pools

Puncture of a Viscous Liquid Film Due to Droplet Falling

Center for Materials Technologies, Skolkovo Institute of Science and Technology, Bolshoy Boulevard 30, bld. 1, Moscow 121205, Russia
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;
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.

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.

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.

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