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説明:

Inspired by penguins, the formation of an air film on surfaces underwater has been well-researched for the potential reduction of drag. However, the features that contribute to drag reduction of penguins are not only the formation of an air layer but also the flow of bubbles along the air layer; basic investiga- tion of the wetting dynamics of a bubble scattered in an underwater environment has been overlooked. The focus of our research was microbubble contact on superhydrophobic/superhydrophilic surfaces underwater. Unlike the adhesion of mist in air, a “coalescence delay” is observed when bubbles make contact, which influences the deposition dynamics of an air film. The “coalescence delay” is propor- tional to the size of the bubbles. This study is helpful to understand air/solid/water systems as well as the drag reduction.

権利情報:

キーワード: microbubble, superhydrophilic, superhydrophobic

刊行年月日: 2018-07-16

出版者: AIP Publishing

掲載誌:

研究助成金:

原稿種別: 査読前原稿 (Author's original)

MDR DOI:

公開URL: https://doi.org/10.1063/1.5038910

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更新時刻: 2024-01-05 22:13:21 +0900

MDRでの公開時刻: 2021-08-14 03:57:07 +0900