Results 221 to 230 of about 53,637 (257)
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Parameters Affecting Slip Length at the Nanoscale
Journal of Computational and Theoretical Nanoscience, 2013Fílippos Sofos +2 more
exaly +2 more sources
Physical Review A, 1992
We study the phenomenon of slip length using molecular dynamics and direct simulation Monte Carlo simulations of a dilute gas. Our work extends the range of Knudsen numbers that have been previously studied. Bhattacharya and Lie suggest a logarithmic dependence of slip length on Knudsen number.
Garcia, Alejandro +2 more
openaire +3 more sources
We study the phenomenon of slip length using molecular dynamics and direct simulation Monte Carlo simulations of a dilute gas. Our work extends the range of Knudsen numbers that have been previously studied. Bhattacharya and Lie suggest a logarithmic dependence of slip length on Knudsen number.
Garcia, Alejandro +2 more
openaire +3 more sources
Direct measurement of the apparent slip length
Physical Review E, 2005We measure velocity profiles in water flowing through thin microchannels, using particle image velocimetry combined with a nanopositioning system. From the velocity profiles, we determine the slip lengths in two cases: Smooth hydrophilic glass surfaces, and smooth hydrophobic glass surfaces, grafted with a monolayer of silane.
Pierre, Joseph, Patrick, Tabeling
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Hydrodynamic slip length as a surface property
Physical Review E, 2016Equilibrium and nonequilibrium molecular dynamics simulations were conducted in order to evaluate the hypothesis that the hydrodynamic slip length is a surface property. The system under investigation was water confined between two graphite layers to form nanochannels of different sizes (3-8 nm). The water-carbon interaction potential was calibrated by
Bladimir, Ramos-Alvarado +2 more
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Slip length crossover on a graphene surface
The Journal of Chemical Physics, 2015Using equilibrium and non-equilibrium molecular dynamics simulations, we study the flow of argon fluid above the critical temperature in a planar nanochannel delimited by graphene walls. We observe that, as a function of pressure, the slip length first decreases due to the decreasing mean free path of gas molecules, reaches the minimum value when the ...
Zhi, Liang, Pawel, Keblinski
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Proceedings of the Human Factors Society Annual Meeting, 1991
Slipping and falling is a major economic problem. Past research has concentrated on the relationship between the shoe and the floor surface while more recent research has extended into the human factors of slipping. The measurement of slipperiness, as opposed to the coefficient of friction, depends on a thorough understanding of why slips start and how
Tom B. Leamon, Kai Way Li
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Slipping and falling is a major economic problem. Past research has concentrated on the relationship between the shoe and the floor surface while more recent research has extended into the human factors of slipping. The measurement of slipperiness, as opposed to the coefficient of friction, depends on a thorough understanding of why slips start and how
Tom B. Leamon, Kai Way Li
openaire +1 more source
Slip Length and Problem of Anomalous Velocity Profile
4th AIAA Theoretical Fluid Mechanics Meeting, 2005The most used expression for the slip length in the slip flow regime where slip conditions are needed for flow prediction comes from a Maxwell description of kinetic boundary conditions and depends on one coe dient only. Even if generally associated to the tangential accommodation coe dient, this coe dient equals any kind of kinetic property ...
Dadzie, K., Meolans, J.G.
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EFFECTIVE SLIP LENGTH: SOME ANALYTICAL AND NUMERICAL RESULTS
The ANZIAM Journal, 2015More and more experimental evidence demonstrates that the slip boundary condition plays an important role in the study of nano- or micro-scale fluid. We propose a homogenization approach to study the effective slippage problem. We show that the effective slip length obtained by homogenization agrees with the results obtained by the traditional method ...
Zhang, Xingyou (Philip) +2 more
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Influence of Wall Deformation on a Slip Length
2018This paper presents the effect of a wall deformation on the boundaries conditions of a shear flow of the viscous fluid over a deformable wall which has a periodic deformation and small amplitude. The Reynolds number for the flow over a wall is low and the creeping flow equations apply. The no-slip boundary condition on the deformable wall applies.
Redouane Assoudi +2 more
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The Journal of Chemical Physics, 2006
Correlations between contact angle, a measure of the wetting of surfaces, and slip length are developed using nonequilibrium molecular dynamics for a Lennard-Jones fluid in Couette flow between graphitelike hexagonal-lattice walls. The fluid-wall interaction is varied by modulating the interfacial energy parameter εr=εsf∕εff and the size parameter σr ...
Roman S, Voronov +2 more
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Correlations between contact angle, a measure of the wetting of surfaces, and slip length are developed using nonequilibrium molecular dynamics for a Lennard-Jones fluid in Couette flow between graphitelike hexagonal-lattice walls. The fluid-wall interaction is varied by modulating the interfacial energy parameter εr=εsf∕εff and the size parameter σr ...
Roman S, Voronov +2 more
openaire +2 more sources