年次大会講演論文集
Online ISSN : 2433-1325
会議情報
1217 はっ水性微細構造表面上の気体層観察
長谷川 雅人上野 久儀
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会議録・要旨集 フリー

p. 145-146

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The micro-structured water-repellent surface has been reported to reduce friction coefficient. The surface has been microscopically observed in this study to clarify whether it holds air layer that is believed to cause drag reduction on the surface. The observation certified the existence of the air layer and its state is affected by some condition such as flow rate or air-solubility of the fluid. In air-saturated water, the air layer exists for hours during the experiment. The air-saturated water flow enhanced the stability of the air layer, while degassed water quickly penetrate the microscale concave on the surface.
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© 2002 一般社団法人日本機械学会
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