ArticleUltrasonics sonochemistry2024
Kelvin-Helmholtz instability as one of the key features for fast and efficient emulsification by hydrodynamic cavitation.
Article in Ultrasonics sonochemistry, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- High-speed visualization of ultrasonic emulsification in microgravity: interactions between cavitation dynamics and liquid-liquid interface topology.Ultrasonics sonochemistry · 2026Article
- Development of MHz X-ray phase contrast imaging at the European XFEL.Journal of synchrotron radiation · 2025Article
- Numerical investigation of three-dimensional effects of hydrodynamic cavitation in a Venturi tube.Ultrasonics sonochemistry · 2024Article
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5 authors.
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Abstract
The paper investigates the oil-water emulsification process inside a micro-venturi channel. More specifically, the possible influence of Kelvin-Helmholtz instability on the emulsification process. High-speed visualizations were conducted inside a square venturi constriction with throat dimensions of 450 µm by 450 µm, both under visible light and X-Rays. We show that cavity shedding caused by the instability results in the formation of several cavity vortices. Their rotation causes the deformation of the oil stream into a distinct wave-like shape, combined with fragmentation into larger drops due to cavitation bubble collapse. Later on, the cavity collapse further disperses the larger drops into a finer emulsion. Thus, it turns out that the Kelvin-Helmholtz instability is similarly characteristic for hydrodynamic cavitation emulsification inside a microchannel as is the Rayleigh-Taylor instability for acoustically driven emulsion formation.
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