Superhydrophobic drag reduction in turbulent flows: A critical review

H Park, CH Choi, CJ Kim - Experiments in Fluids, 2021 - Springer
Superhydrophobic (SHPo) surfaces have been investigated vigorously since around 2000
due in large part to their unique potential for hydrodynamic frictional drag reduction without …

Bioinspired surfaces for turbulent drag reduction

KB Golovin, JW Gose, M Perlin… - … Transactions of the …, 2016 - royalsocietypublishing.org
In this review, we discuss how superhydrophobic surfaces (SHSs) can provide friction drag
reduction in turbulent flow. Whereas biomimetic SHSs are known to reduce drag in laminar …

Flow over natural or engineered surfaces: an adjoint homogenization perspective

A Bottaro - Journal of Fluid Mechanics, 2019 - cambridge.org
Natural and engineered surfaces are never smooth, but irregular, rough at different scales,
compliant, possibly porous, liquid impregnated or superhydrophobic. The correct numerical …

High-resolution velocity measurement in the inner part of turbulent boundary layers over super-hydrophobic surfaces

H Ling, S Srinivasan, K Golovin… - Journal of Fluid …, 2016 - cambridge.org
Digital holographic microscopy is used for characterizing the profiles of mean velocity,
viscous and Reynolds shear stresses, as well as turbulence level in the inner part of …

Reorganisation of turbulence by large and spanwise-varying riblets

S Endrikat, R Newton, D Modesti… - Journal of Fluid …, 2022 - cambridge.org
We study the flow above non-optimal riblets, specifically large drag-increasing and two-
scale trapezoidal riblets. In order to reach large Reynolds numbers and large scale …

The common mechanism of turbulent skin-friction drag reduction with superhydrophobic longitudinal microgrooves and riblets

A Rastegari, R Akhavan - Journal of Fluid Mechanics, 2018 - cambridge.org
Turbulent skin-friction drag reduction with superhydrophobic (SH) longitudinal microgrooves
and riblets is investigated by direct numerical simulation (DNS), using lattice Boltzmann …

[HTML][HTML] On the scaling of the slip velocity in turbulent flows over superhydrophobic surfaces

J Seo, A Mani - Physics of Fluids, 2016 - pubs.aip.org
Superhydrophobic surfaces can significantly reduce hydrodynamic skin drag by
accommodating large slip velocity near the surface due to entrapment of air bubbles within …

Turbulent flows over superhydrophobic surfaces: flow-induced capillary waves, and robustness of air–water interfaces

J Seo, R García-Mayoral, A Mani - Journal of Fluid Mechanics, 2018 - cambridge.org
Superhydrophobic surfaces can retain gas pockets within their microscale textures when
submerged in water. This property reduces direct contact between water and solid surfaces …

[HTML][HTML] Influence of textural statistics on drag reduction by scalable, randomly rough superhydrophobic surfaces in turbulent flow

A Rajappan, K Golovin, B Tobelmann, V Pillutla… - Physics of …, 2019 - pubs.aip.org
We investigate the influence of statistical measures of surface roughness on the turbulent
drag reduction (DR) performance of four scalable, randomly rough superhydrophobic (SH) …

Underwater superhydrophobicity: Stability, design and regulation, and applications

Y Xue, P Lv, H Lin, H Duan - Applied …, 2016 - asmedigitalcollection.asme.org
Bioinspired superhydrophobic surfaces have attracted great interest from fundamental
research to engineering applications. The stability, design, and regulation of …