Results 91 to 100 of about 22,870 (230)

Rheology near jamming - the influence of lubrication forces

open access: yes, 2014
We study, by computer simulations, the role of different dissipation forces on the rheological properties of highly-dense particle-laden flows. In particular, we are interested in the close-packing limit (jamming) and the question if "universal ...
Heussinger, Claus, Maiti, Moumita
core   +1 more source

CFD Modeling of the Effect of Different Surface Texturing Geometries on the Frictional Behavior

open access: yesLubricants, 2018
In order to understand the effect of surface texturing parameters on the frictional behavior of textured surfaces and to correlate results of different lubrication regimes, Computational Fluid Dynamics (CFD) numerical analysis of the fluid flow was ...
Luís Vilhena   +4 more
doaj   +1 more source

Advanced Functional Materials for Marine Energy Utilization

open access: yesInterdisciplinary Materials, EarlyView.
Marine renewable energy is an important future clean energy supply. We construct and sort out the material system for marine energy capture and conversion, transmission, storage, and utilization for the first time. ABSTRACT Several features of marine energy, including large reserves, sustainable utilization, environmental friendliness, make it a ...
Qiang Yu   +7 more
wiley   +1 more source

Lubrication background [PDF]

open access: yes
Surface topography, including the various physical methods of measuring surfaces, and the various lubrication regimes (hydrodynamic, elastohydrodynamic, boundary, and mixed) are discussed.
Dowson, D., Hamrock, B. J.
core   +1 more source

Hydrodynamic interactions of spherical particles in Poiseuille flow between two parallel walls

open access: yes, 2005
We study hydrodynamic interactions of spherical particles in incident Poiseuille flow in a channel with infinite planar walls. The particles are suspended in a Newtonian fluid, and creeping-flow conditions are assumed.
Cichocki B.   +8 more
core   +1 more source

Effect of Zinc Oxide Nanoparticles From Infant Formula Milk Powder on Colon Cells In Vitro

open access: yesJournal of Applied Toxicology, EarlyView.
ABSTRACT Zinc is an essential trace element that participates in numerous metabolic processes; however, excessive exposure may interfere with the absorption of other metals, such as copper. In recent years, nanotechnology has experienced rapid growth, and zinc oxide nanoparticles (ZnO NPs) have garnered significant attention due to their versatile ...
Gloria Salinas‐Lucero   +2 more
wiley   +1 more source

Mechanics of a gaseous film barrier to lubricant wetting of elastohydrodynamically lubricated conjunctions [PDF]

open access: yes
Two analytical models, one based on simple hydrodynamic lubrication and the other on soft elastohydrodynamic lubrication, are presented and compared to delineate the dominant physical parameters that govern the mechanics of a gaseous film between a small
Hamrock, B. J., Prahl, J. M.
core   +1 more source

Gait alterations increase friction of degenerated articular cartilage: A tribological study

open access: yesKnee Surgery, Sports Traumatology, Arthroscopy, EarlyView.
Abstract Purpose To investigate the effect of gait alterations associated with osteoarthritis (OA) on the frictional properties of porcine articular cartilage (AC) in intact and degenerative conditions. Methods Forty‐eight cylindrical AC samples were harvested from 12 porcine femur condyles and equally divided between four groups with n = 12 samples ...
Luisa de Roy   +6 more
wiley   +1 more source

Suspensions of prolate spheroids in Stokes flow. Part 2. Statistically homogeneous dispersions [PDF]

open access: yes, 1993
The simulation method for prolate spheroids in Stokes flow introduced in a companion paper (Claeys & Brady 1993a) is extended to handle statistically homogeneous unbounded dispersions.
Brady, John F., Claeys, Ivan L.
core   +1 more source

Passive hydrodynamic synchronization of two-dimensional swimming cells

open access: yes, 2010
Spermatozoa flagella are known to synchronize when swimming in close proximity. We use a model consisting of two-dimensional sheets propagating transverse waves of displacement to demonstrate that fluid forces lead to such synchronization passively ...
Elfring, Gwynn J., Lauga, Eric
core   +1 more source

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