site stats

Effective slip in pressure-driven stokes flow

WebWe derive exact formulae for the effective slip length for the pressure-driven longitudinal flow of a liquid (held in the Cassie--Baxter state) through a channel bounded by two superhydrophobic walls that are both etched with a periodic array of parallel grooves, where these arrays are symmetrically aligned. WebThe concept of The SH plane (generally anisotropic) exhibits uniform an effective tensorial slip has provided a great deal of in- tensorial slip [29], so that the boundary conditions are sides into various factors that determines flow in a flat channel, and allowed one to obtain very simple solutions ∂ (vτ )j of complex problems [9, 29].

Effective slip in pressure-driven Stokes flow - Cambridge …

WebSep 18, 2015 · When is lower than about 84%, the flow rate and effective slip on the surfaces with longitudinal grooves are larger than the other surfaces. When increases … WebApr 5, 2004 · By modeling the presence of either a depleted water layer or nanobubbles as an effective air gap at the wall, we calculate slip lengths for flow between two infinite parallel plates. ... “ Effective slip in pressure driven Stokes flow,” J. … ga henty chronological order https://round1creative.com

(PDF) Investigation of Flow in Microchannels with …

WebOct 23, 2012 · This is an analytical study on electrohydrodynamic flows through a circular tube, of which the wall is micropatterned with a periodic array of longitudinal or transverse slip-stick stripes. One unit of the wall pattern comprises two stripes, one slipping and the other nonslipping, and each with a distinct ζ potential. WebDirect numerical simulations (DNSs) are used to investigate the drag-reducing performance of superhydrophobic surfaces (SHSs) in turbulent channel flow. SHSs combine surface roughness with hydrophobicity and can, in some cases, support a shear-free air–water interface. Slip velocities, wall shear stresses and Reynolds stresses are considered for a … WebJan 1, 2024 · The effects of the length of the cavity on the flow parameters such as effective slip length, and velocity slip are investigated and the results are compared with the simplified method of... ga hen\\u0027s-foot

Numerical simulation of liquid–gas interface formation in long ...

Category:[PDF] Direct numerical simulations of turbulent flows over ...

Tags:Effective slip in pressure-driven stokes flow

Effective slip in pressure-driven stokes flow

Effective slip in pressure-driven flow past super …

WebJun 26, 2012 · This study aims to investigate effective slip arising from pressure-driven flow through a slit channel bounded by lubricant-impregnated grooved surfaces. The … Web1.Introduction. In the past decades, researchers paid a lot of attention to simulate fluid flow. In the two-dimensional (2D) incompressible viscous fluid, the well-known Navier-Stokes equations [1], [2], [3] based on the conservation laws of mass and momentum are governing equations. It can be applied to describe the motion of liquid or gas.

Effective slip in pressure-driven stokes flow

Did you know?

WebJul 1, 2024 · We study an incompressible viscous fluid flow through a pipe with rough wall. Starting from the Stokes system, prescribing the pressure drop on pipe's ends and assuming the periodicity of the... WebDrag reduction in turbulent flow may be significantly reduced by adding tiny quantities of fiber, polymer, and surfactant particles to the liquid. Different drag-reduction agents have proven to be effective in enhancing the flowability of the liquid when added. This study investigated the potential of decreasing the drag, turbulent flow, and pressure drop in …

WebEffective slip in pressure-driven Stokes flow Eric Lauga, Howard A. Stone Abstract:Nano-bubbles have recently been observed experimentally on smooth … WebApr 14, 2024 · The pressure on the tips at the two ends of the major axis of the ellipsoidal droplets turns out to be lower as compared to the tips at the end of the minor axis. Thus, induced pressure-driven fluid flow takes place near the interface of the droplet toward the tips of the major axis of the same.

WebWe investigate two simple configurations of steady pressuredriven Stokes flow in a circular pipe whose surface contains periodically distributed regions of zero surface … WebMay 1, 2024 · An experimental flow cell is used to measure the pressure drop as a function of the flow rate for a series of microchannel geometries and ultrahydrophobic surface designs. Pressure drop...

WebIn the spirit of experimental studies probing slip at solid surfaces, the effective slip length of the resulting flow is evaluated as a function of the degrees of freedom describing the …

WebNano-bubbles have recently been observed experimentally on smooth hydrophobic surfaces; cracks on a surface can likewise be the site of bubbles when partially wetting … gaheritagefcuWebSep 1, 2015 · These are accounted for by expressions in the literature for apparent hydrodynamic and thermal slip. We develop a dimensionless expression to evaluate the tradeoff between the pressure stability of the liquid–solid–gas system … g.a. henty seriesWebSep 24, 2015 · We show that the effective slip length obtained by homogenization agrees with the results obtained by the traditional method in the literature for the simplest Stokes flow; then we use our... ga hen\u0027s-footWebIn the spirit of experimental studies probing slip at solid surfaces, the effective slip length of the resulting flow is evaluated as a function of the degrees of freedom describing the surface heterogeneities, namely the relative width of the no-slip and no-shear stress … ga henry countyWebJul 25, 2003 · Effective slip in pressure-driven Stokes flow. E. Lauga, H. Stone. Published 25 July 2003. Engineering. Journal of Fluid Mechanics. Nano-bubbles have recently been … black and white round quilted placematsWebJul 25, 2003 · Effective slip in pressure-driven Stokes flow July 2003 Authors: ERIC LAUGA HOWARD A. STONE Request full-text Abstract Nano-bubbles have recently … gaher s.lWebEffective slip in pressure-driven Stokes flow 57 reduction and also the inferred slip length were found to increase with the viscosity of the solution and, perhaps surprisingly, with … black and white round wall clock