Lateral Spreading of Gas Bubbles on Submerged Wettability-Confined Tracks

Spreading of liquid droplets on wettability-confined paths has attracted considerable attention in the past decade. On the other hand, the inverse scenario of a gas bubble spreading on a submerged, wettability-confined track has rarely been studied. In the present work, an experimental investigation...

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Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1999. - 36(2020), 40 vom: 13. Okt., Seite 11829-11835
1. Verfasser: Jafari Gukeh, Mohamad (VerfasserIn)
Weitere Verfasser: Roy, Tamal, Sen, Uddalok, Ganguly, Ranjan, Megaridis, Constantine M
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2020
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article
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520 |a Spreading of liquid droplets on wettability-confined paths has attracted considerable attention in the past decade. On the other hand, the inverse scenario of a gas bubble spreading on a submerged, wettability-confined track has rarely been studied. In the present work, an experimental investigation of the spreading of millimetric gas bubbles on horizontally submerged, textured, wettability-confined tracks is carried out. The width of the track is kept fixed along its entire length, and the spreading behavior of a gas bubble, dispensed at one end of the track, is studied. The effects of varying track width, bubble diameter, and ambient liquid are investigated. Post-contact, the gas bubble spreads along the track at a linear rate with time, while remaining pinned at its back end; the recorded spreading speed is O(0.5 m/s). An inertio-capillary force balance describes the experimentally observed spreading dynamics with excellent agreement 
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700 1 |a Sen, Uddalok  |e verfasserin  |4 aut 
700 1 |a Ganguly, Ranjan  |e verfasserin  |4 aut 
700 1 |a Megaridis, Constantine M  |e verfasserin  |4 aut 
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