2024 Effective slip in pressure-driven stokes flow

Effective slip in pressure-driven stokes flow

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WebNov 7, 2016 · It is found that the effective slip length and the lubricant flow rate can depend strongly on the geometry of the microstructure, the direction of flow, and the lubricant viscosity. In particular, the effective slip can be effectively enhanced by increasing the thickness of a lubricating film atop the ribs. WebAug 1, 2024 · One utility of an asymptotic estimate of effective slip is that for sufficiently small values of ϵ, for all n ≥ 0, an O(ϵ 2n) asymptotic prediction of effective slip …

Electroosmotic Flow Through a Circular Tube With Slip-Stick …

WebMay 18, 2024 · In this paper, we have analyzed an enhanced electroosmotic flow (EOF) by geometric modulation of the surface of a charged nanochannel. Otherwise, flat walls of the channel are modulated by embedding rectangular grooves placed perpendicular to the direction of the applied electric field in a periodic manner. WebAug 1, 2016 · The pressure-driven Stokes flow through a plane channel with arbitrary wall separation having a continuous pattern of sinusoidally varying slippage of arbitrary … dick allen autographed baseball

[PDF] Longitudinal and transverse flow over a cavity containing a ...

WebSep 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 … 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. WebNov 9, 2004 · 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 reductions up to 40% and apparent slip lengths larger than 20 μ m are obtained using ultrahydrophobic surfaces. dick allen baseball hall of fame

Effective slip in pressure-driven Stokes flow - Semantic …

Laminar drag reduction in microchannels using ultrahydrophobic …

WebJul 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 … WebMay 4, 2024 · We investigate pressure driven pipe flow of Laponite suspension, as a model thixotropic fluid. ... Slip behavior during pressure driven flow of Laponite … dick alexander facebookWebJul 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 … dick allen career home runs

"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

Effective slip in pressure-driven stokes flow

[PDF] Longitudinal and transverse flow over a cavity containing a ...

WebSep 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... WebJan 1, 2024 · The effective slip length and temperature jump length were estimated as a function of flow and geometry parameters for three types of micropillar shapes viz., square, triangular and herringbone, decorated in microchannels in regular and staggered manner.

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WebOct 1, 2024 · The present paper investigates the flow of the non-Newtonian fluids in a circular pipe with slip boundary conditions, being obtained as main result the velocity profile and the flow rate characteristic for a power-law fluid. 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. …

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 surface heterogeneities, namely the relative width of the no-slip and no-shear stress … 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 …

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 …

WebJul 24, 2003 · Comparison of the model with experimental studies of pressure-driven flow in capillaries and microchannels reporting slip is made and a possible interpretation of …

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. dick allen baseball refWebJan 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... citizen perpetual calendar watchWebWe investigate two simple configurations of steady pressuredriven Stokes flow in a circular pipe whose surface contains periodically distributed regions of zero surface … citizen perpetual calendar watch manualWebOct 25, 2024 · Lauga E, Stone HA (2003) Effective slip in pressure-driven Stokes flow. J Fluid Mech 489:55–77. Article MathSciNet MATH Google Scholar Sbragaglia M, … citizen petition searchWebOct 25, 2024 · Using these solutions, the effective slip lengths are computed and compared with recent analytical results for unbounded shear flow over the same class of surfaces. Expressions for the first-order corrections to these effective slip lengths when the menisci are weakly curved are also derived. citizen phakathiWebDec 21, 2024 · Focusing the interest on the flow-rate to pressure-gradient relationship over a representative element of the fracture, an upscaling procedure is applied to the local Reynolds equation using the method of volume averaging, providing a macroscopic model for which the momentum conservation equation has a Reynolds-like form. citizen perpetual calendar watch instructionsWebJun 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 … citizen petition for parents