Results 231 to 240 of about 53,637 (257)
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Effective slip lengths for flows over surfaces with nanobubbles: the effects of finite slip
Journal of Physics: Condensed Matter, 2009We consider effective slip lengths for flows of simple liquids over surfaces contaminated by gaseous nanobubbles. In particular, we examine whether the effects of finite slip over the liquid-bubble interface are important in limiting effective slip lengths over such surfaces.
S C, Hendy, N J, Lund
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Oscillatory Flow Through a Channel with Stick–Slip Walls: Complex Navier’s Slip Length
AIP Conference Proceedings, 2011Effective slip lengths for pressure-driven oscillatory flow through a parallel-plate channel with boundary slip are deduced using a semi-analytic method of eigenfunction expansions and point matching. The channel walls are each a superhydrophobic surface micropatterned with no-shear alternating with no-slip stripes, which are aligned either parallel or
Chiu-On Ng +3 more
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Direct measurement of slip length in electrolyte solutions
"Proceedings" of "OilGasScientificResearchProjects" Institute, SOCAR, 2010Electrokinetic effects and electrostatic repulsion between tracer particles and glass surface have both been proposed as possible sources that would lead to false slip results obtained from velocimetry-based measurements. Using a three-dimensional total internal reflection velocimetry technique, we address such a concern by comparing the measured slip ...
P. Huang, K.S. Brayer
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Development lengths in Newtonian Poiseuille flows with wall slip
Applied Mathematics and Computation, 2016zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Kountouriotis, Zacharias +5 more
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Large Slip Length over a Nanopatterned Surface
Chinese Physics Letters, 2007A thermodynamic method is employed to analyse the slip length of hydrophobic nanopatterned surface. The maximal slip lengths with respect to the hydrophobicity of the nanopatterned surface are computed. It is found that the slip length reaches more than 50 μm if the nanopatterned surfaces have a contact angle larger than 160°. Such results are expected
Li Ding +4 more
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Frictional slip lengths and blockage coefficients
Physics of Fluids, 2011This paper shows that the frictional slip lengths for longitudinal Stokes shear flow over a superhydrophobic surface are precisely the blockage coefficients for uniform potential flow past screens with the same geometry. This observation facilitates useful knowledge transfer between two apparently disparate areas of fluid dynamics.
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On three simple experiments to determine slip lengths
Microfluidics and Nanofluidics, 2008It is now well established that for fluid flow at the micro- and nano-scales the standard no-slip boundary condition of fluid mechanics at fluid–solid interfaces is not applicable and must be replaced by a boundary condition that allows some degree of tangential fluid slip.
Matthews, M., Hill, J.
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Derivation of the Navier slip and slip length for viscous flows over a rough boundary
Physics of Fluids, 2017In this paper, we derive the Navier slip boundary condition for flows over a rough surface, by combining homogenization methods and boundary layer techniques. The Navier slip condition is derived as the effective boundary condition, in the limit as the roughness becomes small; it is the first order corrector to the no-slip condition on the limiting ...
Silvia Jiménez Bolaños +1 more
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Estimation of yarn strength based on critical slipping length and fiber length distribution
Textile Research Journal, 2017Yarn strength is composed of the total contributions made by all breaking and slipping fibers which are determined by critical slipping length l c . Though the definition of l c has been the focus of many research projects, it still remains unsolved. In
Zhan Jiang +4 more
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Slip Length Measurements Using µPIV and TIRF‐Based Velocimetry
Israel Journal of Chemistry, 2014AbstractThe goal of this paper is to review progress (mostly recent) made in micro and nanovelocimetry, focusing on two techniques: µPIV (microparticle image velocimetry) and nanoPTV (nanoparticle tracking velocimetry). The paper focuses on the measurement of slippage (taken as a benchmark for these techniques), concentrating on work done in our group.
Li, Zhenzhen +8 more
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