Marangoni instability of two liquids mixing at a free surface

E. Tan; S. T. Thoroddsen

doi:10.1063/1.869831

Marangoni instability of two liquids mixing at a free surface

E. Tan^*, S. T. Thoroddsen

^*Corresponding author for this work

Research output: Contribution to journal › Review article › peer-review

16 Scopus citations

Abstract

The impact of a water drop on a thin layer of glycerin leads to the formation of an intricate flower-like pattern. We show that these leaf-like forms are generated by a surface-tension instability at the air-liquid interface along which there exists variable concentration of glycerin and water. Spatial variations of surface tension drive intense vortices inside the water layer, which interact with the glycerin-water concentration at the surface. Horizontal bending of these vortices is reinforced by the resulting enhancement of the surface-tension gradients.

Original language	English (US)
Pages (from-to)	3038-3040
Number of pages	3
Journal	Physics of Fluids
Volume	10
Issue number	12
DOIs	https://doi.org/10.1063/1.869831
State	Published - 1998
Externally published	Yes

ASJC Scopus subject areas

Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Fluid Flow and Transfer Processes
Computational Mechanics

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10.1063/1.869831

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title = "Marangoni instability of two liquids mixing at a free surface",

abstract = "The impact of a water drop on a thin layer of glycerin leads to the formation of an intricate flower-like pattern. We show that these leaf-like forms are generated by a surface-tension instability at the air-liquid interface along which there exists variable concentration of glycerin and water. Spatial variations of surface tension drive intense vortices inside the water layer, which interact with the glycerin-water concentration at the surface. Horizontal bending of these vortices is reinforced by the resulting enhancement of the surface-tension gradients.",

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AB - The impact of a water drop on a thin layer of glycerin leads to the formation of an intricate flower-like pattern. We show that these leaf-like forms are generated by a surface-tension instability at the air-liquid interface along which there exists variable concentration of glycerin and water. Spatial variations of surface tension drive intense vortices inside the water layer, which interact with the glycerin-water concentration at the surface. Horizontal bending of these vortices is reinforced by the resulting enhancement of the surface-tension gradients.

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Marangoni instability of two liquids mixing at a free surface

Abstract

ASJC Scopus subject areas

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