Interferometry and Simulation of the Thin Liquid Film between a Free-Rising Bubble and a Glass Substrate

Because of their practical importance and complex underlying physics, the thin liquid films formed between colliding bubbles or droplets have long been the subject of experimental investigations and theoretical modeling. Here, we examine the possibility of accurately predicting the dynamics of the t...

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Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1999. - 38(2022), 7 vom: 22. Feb., Seite 2363-2371
1. Verfasser: Vakarelski, Ivan U (VerfasserIn)
Weitere Verfasser: Langley, Kenneth R, Yang, Fan, Thoroddsen, Sigurdur T
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2022
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article
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520 |a Because of their practical importance and complex underlying physics, the thin liquid films formed between colliding bubbles or droplets have long been the subject of experimental investigations and theoretical modeling. Here, we examine the possibility of accurately predicting the dynamics of the thin liquid film drainage using numerical simulations when compared to an experimental investigation of millimetric bubbles free-rising in pure water and colliding with a flat glass interface. A high-speed camera is used to track the bubble bounce trajectory, and a second high-speed camera together with a pulsed laser is used for interferometric determination of the shape and evolution of the thin liquid film profile during the bounce. The numerical simulations are conducted with the open source Gerris flow solver. The simulation reliability was first confirmed by comparison with the experimental bubble bounce trajectory and bubble shape evolution during the bounce. We further demonstrate that the simulation predicted time evolution for the shape of the thin liquid film profiles is in excellent agreement with the high-speed interferometry measured profiles for the entire experimentally accessible film size range. Finally, we discuss the implications of using numerical simulation together with theoretical modeling for resolving the complex processes of high velocity bubble and droplet collisions 
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700 1 |a Langley, Kenneth R  |e verfasserin  |4 aut 
700 1 |a Yang, Fan  |e verfasserin  |4 aut 
700 1 |a Thoroddsen, Sigurdur T  |e verfasserin  |4 aut 
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