期刊
LANGMUIR
卷 30, 期 36, 页码 10970-10976出版社
AMER CHEMICAL SOC
DOI: 10.1021/la5021143
关键词
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资金
- Shell-MIT Energy Initiative
- MITEI Fellowship
Lubricant-impregnated surfaces (LIS), where micro/nanotextured surfaces are impregnated with lubricating liquids, have received significant attention for their robust, superslippery properties. In this study, we systematically demonstrate the potential for LIS to reduce drag in laminar flows. We present a scaling model that incorporates the viscosity of the lubricant and elucidates the dependence of drag reduction on the ratio of the viscosity of the working fluid to that of the lubricant. We experimentally validate this dependence in a cone and plate rheometer and demonstrate a drag reduction of 16% and slip length of 18 mu m in the case where the ratio of working fluid viscosity to lubricant viscosity is 260.
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