Results 31 to 40 of about 53,675 (256)

Drag Reduction by Riblets on a Commercial UAV

open access: yesApplied Sciences, 2022
Riblets are micro-grooves capable of decreasing skin-friction drag, but recent work suggests that additional benefits are possible for other components of aerodynamic drag. The effect of riblets on a fixed-wing, low-speed Unmanned Aerial Vehicle (UAV) on
Lorenzo Cacciatori   +5 more
doaj   +1 more source

Lattice Boltzmann Simulation of Fluid Flow Characteristics in a Rock Micro-Fracture Based on the Pseudo-Potential Model

open access: yesEnergies, 2018
Slip boundary has an important influence on fluid flow, which is non-negligible in rock micro-fractures. In this paper, an improved pseudo-potential multi-relaxation-time (MRT) lattice Boltzmann method (LBM), which can achieve a large density ratio, is ...
Pengyu Wang   +3 more
doaj   +1 more source

Giant slip length at a supercooled liquid-solid interface

open access: yesPhysical Review E, 2023
The effect of temperature on friction and slip at the liquid-solid interface has attracted attention over the last twenty years, both numerically and experimentally. However, the role of temperature on slip close to the glass transition has been less explored.
Lafon, Suzanne   +4 more
openaire   +3 more sources

The Effect of Wall Shear Stress and Viscous Heating on Nanoscale Flow [PDF]

open access: yesPort Said Engineering Research Journal, 2018
The effect of wall shear stress and viscous heating on nano scale flow properties and boundary conditions is presented. Molecular dynamics (MD) simulations is implemented to handle nano scale force-driven Poiseuille flow bounded by two parallel planner ...
Mohamed Elsabahy   +2 more
doaj   +1 more source

Pedicle Length and Degree of Slip in Lumbosacral Isthmic Spondylolisthesis [PDF]

open access: yesOrthopaedic Surgery, 2015
ObjectiveThe present retrospective study was performed to assess the anatomical features of the pedicle in isthmic spondylolisthesis and to correlate this with degree of slip.MethodsTwenty‐six patients with isthmic spondylolytic spondylolisthesis were studied.
Phoebe G, Matthews   +3 more
openaire   +2 more sources

The influences of electric field intensity and driving force on the slip behaviour of water flow in a nanochannel.

open access: yesPLoS ONE, 2021
In the present work, non-equilibrium molecular dynamics (MD) simulations are used to investigate the flow of liquid water between two metallic solid atomistic smooth walls.
Qiwei Liu   +4 more
doaj   +1 more source

Local Flow Field and Slip Length of Superhydrophobic Surfaces [PDF]

open access: yesPhysical Review Letters, 2016
While the global slippage of water past superhydrophobic surfaces has attracted wide interest, the local distribution of slip still remains unclear. Using fluorescence correlation spectroscopy, we performed detailed measurements of the local flow field and slip length for water in the Cassie state on a microstructured superhydrophobic surface.
David Schäffel   +4 more
openaire   +4 more sources

Lubrication Models with Small to Large Slip Lengths

open access: yesJournal of Engineering Mathematics, 2005
A set of lubrication models for the thin film flow of incompressible fluids on solid substrates is derived and studied.The models are obtained as asymptotic limits of the Navier-Stokes equations with the Navier-slip boundary condition for different orders of magnitude for the slip-length parameter.
Münch, Andreas   +2 more
openaire   +3 more sources

Preparation and fluid drag reduction properties of superhydrophobic paper-based films comprising carbon nanotubes and fluoropolymers

open access: yesScience and Engineering of Composite Materials, 2017
Carbon nanotubes (CNTs) were successfully prepared using chemical vapor deposition method on nickel-coated silicon substrates. The CNTs were then modified to obtain functionalized ends.
Ma Weiwei, Zhou Zhiping, Li Ping
doaj   +1 more source

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