Results 21 to 30 of about 53,675 (256)

Two-Dimensional Electromagnetohydrodynamic (EMHD) Flows of Fractional Viscoelastic Fluids with Electrokinetic Effects

open access: yesNanomaterials, 2022
The present study provides analytical and numerical solutions for an electromagnetohydrodynamic (EMHD) flow using a Caputo time-fractional Maxwell model. The flow is a typical rectangular channel flow.
Kai Tian   +3 more
doaj   +1 more source

Fluid Properties Extraction in Confined Nanochannels with Molecular Dynamics and Symbolic Regression Methods

open access: yesMicromachines, 2023
In this paper, we propose an alternative road to calculate the transport coefficients of fluids and the slip length inside nano-conduits in a Poiseuille-like geometry.
Dimitrios Angelis   +3 more
doaj   +1 more source

Wall slip of complex fluids: Interfacial friction versus slip length [PDF]

open access: yesPhysical Review Fluids, 2018
Using a dynamic Surface Force Apparatus, we demonstrate that the notion of slip length used to describe the boundary flow of simple liquids, is not appropriate for viscoelastic liquids. Rather, the appropriate description lies in the original Navier's partial slip boundary condition, formulated in terms of an interfacial friction coefficient.
Cross, Benjamin   +5 more
openaire   +3 more sources

Effective slip-length tensor for a flow over weakly slipping stripes [PDF]

open access: yesPhysical Review E, 2013
11 pages, 4 figures, submitted to Phys.
Asmolov, Evgeny S.   +3 more
openaire   +3 more sources

Three-Dimensional Simulations of Anisotropic Slip Microflows Using the Discrete Unified Gas Kinetic Scheme

open access: yesEntropy, 2022
The specific objective of the present work study is to propose an anisotropic slip boundary condition for three-dimensional (3D) simulations with adjustable streamwise and spanwise slip length by the discrete unified gas kinetic scheme (DUGKS).
Wenqiang Guo, Guoxiang Hou
doaj   +1 more source

Critical Nucleation Length for Accelerating Frictional Slip [PDF]

open access: yesGeophysical Research Letters, 2017
AbstractThe spontaneous nucleation of accelerating slip along slowly driven frictional interfaces is central to a broad range of geophysical, physical, and engineering systems, with particularly far‐reaching implications for earthquake physics. A common approach to this problem associates nucleation with an instability of an expanding creep patch upon ...
Michael Aldam   +4 more
openaire   +3 more sources

Slip boundary effect on the critical Reynolds number of subcritical transition in channel flow

open access: yesTheoretical and Applied Mechanics Letters, 2023
In this letter, the effect of slip boundary on the origin of subcritical transition in two-dimensional channel flows is studied numerically and theoretically.
Yue Xiao, Linsen Zhang, Jianjun Tao
doaj   +1 more source

A Fractal Permeability Model of Tight Oil Reservoirs Considering the Effects of Multiple Factors

open access: yesFractal and Fractional, 2022
The prediction of permeability and the evaluation of tight oil reservoirs are very important to extract tight oil resources. Tight oil reservoirs contain enormous micro/nanopores, in which the fluid flow exhibits micro/nanoscale flow and has a slip ...
Zhongwei Wu   +5 more
doaj   +1 more source

High-Velocity Shear and Soft Friction at the Nanometer Scale

open access: yesFrontiers in Mechanical Engineering, 2021
We study high-speed friction on soft polymer materials by measuring the amplitude dependence of cyclic lateral forces on the atomic force microscope (AFM) tip as it slides on the surface with fixed contact force.
Per-Anders Thorén   +3 more
doaj   +1 more source

Measurement and Quantification of Effective Slip Length at Solid–Liquid Interface of Roughness-Induced Surfaces with Oleophobicity

open access: yesApplied Sciences, 2018
Boundary conditions of the liquid–solid interface of micro/nano fluid flow are of great interest, as slippage is linked with decreased drag. However, previous studies have seldom included a systematic analysis of the effect of roughness on the ...
Yifan Li, Yunlu Pan, Xuezeng Zhao
doaj   +1 more source

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