Gravitational Effects in the Collision of Elasto-Viscoplastic Drops on a Vertical Plane
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Mdpi
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Abstract
The collision of drops in a solid substrate is an interesting problem with several practical applications. When the drop is made of a complex fluid the problem presents numerical challenges due to the interaction of the mechanical properties and the free surface approach. In the present work, we solve the numerical problem of elasto-viscoplastic drops colliding in vertical plane. The free surface evolution is handled by a Marker-And-Cell method combined with a Front-Tracking interface representation. Special emphasis is given to the gravitational effects by means of exploring the Froude number. We were able to find a rich variety of outputs that can be classified as sticking, sliding, bouncing, detaching, and slithering.
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drop impact, elasto-viscoplastic material, free surface, gravitational effects
Language
English
Citation
Fluids. Basel: Mdpi, v. 5, n. 2, 17 p., 2020.
