Direct measurement of slip flows in superhydrophobic microchannels with transverse grooves

By D. Byun, Jihoon Kim, H. Ko, Hoon Cheol Park. 2008

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Superhydrophobic drag reduction in laminar flows: a critical review (2016, methodology): “…transverse to liquid flow) (Ou et al. 2004; Ou and Rothstein 2005; Choi et al. 2006; Davies et al. 2006; Truesdell et al. 2006; Maynes et al. 2007; Byun et al. 2008; Lee et al. 2008; Tsai et al. 2009), posts (Ou et al. 2004; Ou and Rothstein 2005; Lee et al. 2008; Jung and Bhushan 2010; Lee and…”
Flow past superhydrophobic surfaces containing longitudinal grooves: effects of interface curvature (2010, background): “An approximate stability criterion (Quere et al. 2003; Davies et al. 2006; Lee et al. 2008; Byun et al. 2008) for maintaining a dewetted state is   L H PLG       cos 2 , where ΔPLG is the pressure difference across the liquid-gas interface, Θ (> 90o) is the liquid-vapor-solid contact angle a”
Superhydrophobic turbulent drag reduction as a function of surface grating parameters (2014, background): “It is noted that only micro particle image velocimetry (µPIV), whose spatial resolution is as small as O (1 µm), was able to measure discernible slips on SHPo surfaces in laminar (Joshep et al. 2006; Byun et al. 2008; Tsai et al. 2009) and turbulent (Daniello et al. 2009) flows.”