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A smooth future
Lydéric Bocquet,Eric Lauga +1 more
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Research on superhydrophobic materials has mostly focused on their extreme non-wettability, but the implications of superHydrophobicity beyond wetting, particularly for transport phenomena, remain largely unexplored.Abstract:
Research on superhydrophobic materials has mostly focused on their extreme non-wettability. However, the implications of superhydrophobicity beyond wetting, in particular for transport phenomena, remain largely unexplored.read more
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Atomic-scale computational design of hydrophobic RE surface-doped Al2O3 and TiO2.
Kamil Czelej,Marcin Roland Zemła,Piotr Śpiewak,Tomasz Wejrzanowski,Krzysztof J. Kurzydłowski +4 more
TL;DR: The DFT method is applied to analyze the possibility of tuning the wettability of commonly used hydrophilic Al2O3 and TiO2 by surface doping with Ce and indicates that Ce can preferentially segregate to the surface of Al2 ores and form a Ce-rich oxide layer, which is stable under a wide range of oxygen chemical potentials.
Journal ArticleDOI
An asymptotic theory for the high-Reynolds-number flow past a shear-free circular cylinder
TL;DR: In this paper, an asymptotic theory for analytical characterization of the high Reynolds-number incompressible flow of a Newtonian fluid past a shear-free circular cylinder is presented.
Journal ArticleDOI
How Swelling, Cross-Linking, and Aging Affect Drop Pinning on Lubricant-Infused, Low Modulus Elastomers
Zhuoyun Cai,Jonathan T. Pham +1 more
TL;DR: In this paper , the critical water drop volume required for sliding is strongly controlled by the degree of swelling; higher swelling leads to lower critical drop volumes, and not lightly swollen surfaces, recover their slippery behavior during an aging process after they are rinsed with water.
Journal ArticleDOI
Growth and modelling of spherical crystalline morphologies of molecular materials
TL;DR: This work shows solvent-free, guard flow-assisted organic vapour jet printing of non-faceted, crystalline microspheroids of archetypal small molecular materials used in organic electronic applications and proposes an analytical model and a phase diagram predicting the surface morphology evolution of different molecules based on processing conditions, coupled with the thermophysical and mechanical properties of the molecules.
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Dynamics of laminar and transitional flows over slip surfaces: effects on the laminar─turbulent separatrix
Ethan Davis,Jae Sung Park +1 more
TL;DR: Park et al. as mentioned in this paper studied the effect of slip surfaces on the laminar-turbulent separatrix of plane Poiseuille flow by direct numerical simulation and found that slip surfaces decrease the likelihood of sustained turbulence compared to the no-slip case, and the likelihood is further decreased as slip length is increased.
References
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Journal ArticleDOI
Wetting: statics and dynamics
TL;DR: In this paper, the authors present an attempt towards a unified picture with special emphasis on certain features of "dry spreading": (a) the final state of a spreading droplet need not be a monomolecular film; (b) the spreading drop is surrounded by a precursor film, where most of the available free energy is spent; and (c) polymer melts may slip on the solid and belong to a separate dynamical class, conceptually related to the spreading of superfluids.
Journal ArticleDOI
Designing Superoleophobic Surfaces
Anish Tuteja,Wonjae Choi,Minglin Ma,Joseph M. Mabry,Sarah A. Mazzella,Gregory C. Rutledge,Gareth H. McKinley,Robert E. Cohen +7 more
TL;DR: It is shown how a third factor, re-entrant surface curvature, in conjunction with chemical composition and roughened texture, can be used to design surfaces that display extreme resistance to wetting from a number of liquids with low surface tension, including alkanes such as decane and octane.
Journal ArticleDOI
Wetting and Spreading
TL;DR: In this article, the surface forces that lead to wetting are considered, and the equilibrium surface coverage of a substrate in contact with a drop of liquid is examined, while the hydrodynamics of both wetting and dewetting is influenced by the presence of the three-phase contact line separating "wet" regions from those that are either dry or covered by a microscopic film.
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Characterization and Distribution of Water-repellent, Self-cleaning Plant Surfaces
TL;DR: The importance of roughness and water-repellency, respectively, as the basis of an anti-adhesive, self-cleaning surface, in comparison to other functions of microstructures, is discussed.
Journal ArticleDOI
Progess in superhydrophobic surface development.
TL;DR: The origins of water-repellent surfaces are discussed, examining how size and shape of surface features are used to control surface characteristics, in particular how techniques have progressed to form multi-scaled roughness to mimic the lotus leaf effect.