Results 11 to 20 of about 1,160,835 (292)

Variational approach to gas flows in microchannels on the basis of the Boltzmann equation for hard-sphere molecules [PDF]

open access: yes, 2009
This paper was presented at the 2nd Micro and Nano Flows Conference (MNF2009), which was held at Brunel University, West London, UK. The conference was organised by Brunel University and supported by the Institution of Mechanical Engineers, IPEM, the ...
2nd Micro and Nano Flows Conference (MNF2009)   +2 more
core   +6 more sources

Thermal rarefied gas flow investigations through micro/nano backward-facing step : Comparison of DSMC and CFD subject to hybrid slip and jump boundary conditions [PDF]

open access: yes, 2014
This paper evaluates the suitability of a newly developed hybrid “Langmuir-Maxwell” and “Langmuir-Smoluchowski” slip/jump boundary conditions in the Navier-Stokes-Fourier equations for nano/micro backward-facing step geometry flow which experiences ...
White, Craig   +3 more
core   +3 more sources

Near-wall effects in rarefied gas micro-flows: some modern hydrodynamic approaches [PDF]

open access: yes, 2005
Methods for simulating the critical near-wall region in hydrodynamic models of gas micro-flows are discussed. Two important non-equilibrium flow features - velocity slip at solid walls, and the Knudsen layer (which extends one or two molecular mean free ...
Emerson, David   +12 more
core   +5 more sources

Velocity slip on curved surfaces [PDF]

open access: yesPhysical Review E, 2014
The Navier boundary condition for velocity slip on flat surfaces, when expressed in tensor form, is readily extended to surfaces of any shape. We test this assertion using molecular dynamics simulations of flow in channels with flat and curved walls and for rotating cylinders and spheres, all for a wide range of solid-liquid interaction strengths.
Chen, Weikang, Zhang, Rui, Koplik, Joel
openaire   +4 more sources

A prediction model of flat belt slippage considering rigid-slip during power transmission

open access: yesNihon Kikai Gakkai ronbunshu, 2023
The purpose of this study is to propose an effective model for predicting the slip ratio of a belt transmission mechanism during power transmission, considering the different tensile stiffness of the drive belt.
Kiyotaka OBUNAI, Kazuya OKUBO, Ato FUKUO
doaj   +1 more source

Rarefied hypersonic flow simulations using the Navier-Stokes equations with non-equilibrium boundary conditions [PDF]

open access: yes, 2012
This paper investigates the use of Navier-Stokes-Fourier equations with non-equilibrium boundary conditions (BCs) for simulation of rarefied hypersonic flows.
Reese, Jason M.   +5 more
core   +3 more sources

Slip- and velocity-dependent friction measurements

open access: yes, 2020
We performed laboratory friction experiments on simulated fault gouges, measuring both the velocity- and slip-dependence of friction in velocity-step tests. Here, we evaluate the relative importance of slip- and velocity-dependent friction in laboratory
Ikari, Matt J
core   +1 more source

An extension to the Navier-Stokes equations to incorporate gas molecular collisions with boundaries [PDF]

open access: yes, 2010
We investigate a model for micro-gas-flows consisting of the Navier-Stokes equations extended to include a description of molecular collisions with solid boundaries, together with first and second order velocity slip boundary conditions.
Reese, Jason M.   +9 more
core   +4 more sources

Relative Effects of Asymmetry and Wall Slip on the Stability of Plane Channel Flow

open access: yesFluids, 2017
The effect of wall velocity slip on the stability of a pressure-driven two-dimensional asymmetric channel flow is examined by considering Navier slip condition on the channel walls.
Sukhendu Ghosh
doaj   +1 more source

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