2017
DOI: 10.1017/jfm.2017.360
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Liquid-infused surfaces as a passive method of turbulent drag reduction

Abstract: Liquid-infused surfaces present a novel, passive method of turbulent drag reduction. Inspired by the Nepenthes Pitcher Plant, liquid-infused surfaces utilize a lubricating fluid trapped within structured roughness to facilitate a slip at the effective surface. The conceptual idea is similar to that of superhydrophobic surfaces, which rely on a lubricating air layer, whereas liquid-infused surfaces use a preferentially wetting liquid lubricant to create localized fluid–fluid interfaces. Maintaining the presence… Show more

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Cited by 81 publications
(65 citation statements)
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“…increasing the viscosity of the fluid in the substrate. Present results agree well with the model of Schönecker et al (2014) for longitudinal bars as discussed in Fu et al (2017). The slip length for the staggered cubes with a = 0.5 is very similar to that of transversal square a)…”
Section: Mean Velocitysupporting
confidence: 89%
See 1 more Smart Citation
“…increasing the viscosity of the fluid in the substrate. Present results agree well with the model of Schönecker et al (2014) for longitudinal bars as discussed in Fu et al (2017). The slip length for the staggered cubes with a = 0.5 is very similar to that of transversal square a)…”
Section: Mean Velocitysupporting
confidence: 89%
“…The larger gas fraction is aimed at highlighting the role of the interface. In fact, it should be expected that the surface with large a would generate high values of drag reduction for SHS/LIS (Fu et al 2017) but increase the drag when there is only one fluid in the channel, i.e. the case of a classical rough wall (Leonardi & Castro 2010).…”
Section: Flow Configurationmentioning
confidence: 99%
“…Slippery liquid-infused porous surfaces (SLIPS) exhibit remarkable properties such as ultra-low contact angle hysteresis (CAH) for a wide variety of liquids 1 , 2 , excellent self-healing capability 2 , 3 , and stability under high pressures or temperatures 2 , 4 , 5 . In addition to repelling liquids, SLIPS have been shown to promote anti-fouling 6 13 , self-cleaning 1 , 2 , 14 , anti-icing 15 20 , reduced drag 21 24 and enhanced phase-change heat transfer 25 31 .…”
Section: Introductionmentioning
confidence: 99%
“…The assumption of perfect slip cannot be made in case of LIS because the viscosity of the lubricant is of the same magnitude order of that of the main stream and then the shear at the interface is not zero. Fu et al [8] performed DNS of two superposed fluids in a turbulent channel with one textured wall made of either longitudinal or square bars for a wide range of viscosity ratio, from SHS to LIS. The interface between the two fluids was forced to be horizontal and slippery in the streamwise and spanwise direction.…”
Section: Introductionmentioning
confidence: 99%