Results 31 to 40 of about 411,219 (297)

Roughness Induced Boundary Slip in Microchannel Flows [PDF]

Physical Review Letters, 2007
Surface roughness becomes relevant if typical length scales of the system are comparable to the scale of the variations as it is the case in microfluidic setups. Here, an apparent boundary slip is often detected which can have its origin in the assumption of perfectly smooth boundaries.
Kunert, C.M., Harting, J.D.R.
openaire   +3 more sources

Numerical analysis of low-Reynolds-number flow past an array of pillars with surface slip

Nihon Kikai Gakkai ronbunshu
In the development of micro- and nano-fluidic devices incorporating nanopillar structures to create nanoscale confined flow paths, it is important to consider the slip velocity on the pillar surface, which reflects the local wettability.
Takehiro FUJII, Takeshi OMORI
doaj   +1 more source

Solution of Time Periodic Electroosmosis Flow with Slip Boundary

Abstract and Applied Analysis, 2014
Recent research confirms that slip of a fluid on the solid surface occurs at micrometer scale. Slip on solid surface may cause the change of interior material deformation which consequently leads to the change of velocity profile and stress field.
Qian Sun, Yonghong Wu, Lishan Liu, B. Wiwatanapataphee   +3 more
doaj   +1 more source

Effective slip in pressure-driven flow past super-hydrophobic stripes

, 2010
Super-hydrophobic array of grooves containing trapped gas (stripes), have the potential to greatly reduce drag and enhance mixing phenomena in microfluidic devices.
Belyaev, Aleksey V., Vinogradova, Olga I.   +1 more
core   +1 more source

Magnetohydrodynamic Viscous Flow Over a Shrinking Sheet With Second Order Slip Flow Model [PDF]

, 2014
In this paper, we investigate the magnetohydrodynamic viscous flow with second order slip flow model over a permeable shrinking surface. We have obtained the closed form of exact solution of Navier-Stokes equations by using similarity variable technique.
Abbas, G., Mahmood, T., Shah, S. Munawar
core   +1 more source

Simulation of the Slip Velocity Effect in an AC Electrothermal Micropump

Micromachines, 2020
The principal aim of this study was to analyze the effect of slip velocity at the microchannel wall on an alternating current electrothermal (ACET) flow micropump fitted with several pairs of electrodes. Using the finite element method (FEM), the coupled
Fraj Echouchene, Thamraa Al-shahrani, Hafedh Belmabrouk   +2 more
doaj   +1 more source

Slipping through blood flow

Physics, 2009
Simulations provide insight into how viscous flow transforms the shapes of red blood cells, which may influence their physiological properties.
Howard Stone, Alison Forsyth, Jiandi Wan
openaire   +2 more sources

Wall slip and flow of concentrated hard-sphere colloidal suspensions

, 2012
We present a comprehensive study of the slip and flow of concentrated colloidal suspensions using cone-plate rheometry and simultaneous confocal imaging.
Barrett K. E. J., G. Petekidis, Hunter R. J., L. Isa, Larson R. G., Lee B., P. Ballesta, R. Besseling, W. C. K. Poon   +8 more
core   +1 more source

Flow reversals in turbulent convection with free-slip walls

, 2015
We perform numerical simulations of turbulent convection for infinite Prandtl number with free-slip walls, and study the dynamics of flow reversals. We show interesting correlations between the flow reversals and the nonlinear interactions among the ...
Ambhire, Siddhesh C., Pandey, Ambrish, Verma, Mahendra K.   +2 more
core   +1 more source

Orthogonal, solenoidal, three-dimensional vector fields for no-slip boundary conditions [PDF]

, 2006
Viscous fluid dynamical calculations require no-slip boundary conditions. Numerical calculations of turbulence, as well as theoretical turbulence closure techniques, often depend upon a spectral decomposition of the flow fields.
Chandrasekhar S, Constantin P, Craya A, Dalhburg J P, Foias C, Gallavotti G, Kress B T, Lamb H, Leaf Turner, Sbragaglia S Prosperetti A   +9 more
core   +2 more sources