Results 61 to 70 of about 1,271,365 (344)

Rotational Maneuvers of Copepod Nauplii at Low Reynolds Number

open access: yesFluids, 2020
Copepods are agile microcrustaceans that are capable of maneuvering freely in water. However, the physical mechanisms driving their rotational motion are not entirely clear in small larvae (nauplii).
Kacie T. M. Niimoto   +4 more
doaj   +1 more source

A basic swimmer at low Reynolds number [PDF]

open access: yesSoft Matter, 2009
Swimming and pumping at low Reynolds numbers are subject to the "Scallop theorem", which states that there will be no net fluid flow for time reversible motions. Living organisms such as bacteria and cells are subject to this constraint, and so are existing and future artificial "nano-bots" or microfluidic pumps.
Marco Cosentino Lagomarsino   +5 more
openaire   +5 more sources

Simulation of Inhomogeneous Refractive Index Fields Induced by Hot Tailored Forming Components

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents a simulation model for simulating inhomogeneous refractive index fields (IRIF) in hot‐forged components, accounting for thermal influences and complex geometries. Through this simulation, a priori knowledge about the propagation of the IRIF can be obtained, allowing for the positioning of the component or an optical measurement ...
Pascal Kern   +3 more
wiley   +1 more source

Patterns of community violence exposure among urban adolescents and their associations with adjustment

open access: yesAmerican Journal of Community Psychology, Volume 70, Issue 3-4, Page 265-277, December 2022., 2022
Abstract Community violence exposure is prevalent among urban and marginalized adolescents. Although there is strong evidence that community violence exposure is associated with negative consequences, prior studies and theories suggest that these associations may differ as a function of specific characteristics of exposure.
Sarah K. Pittman, Albert D. Farrell
wiley   +1 more source

Wing Efficiency Enhancement at Low Reynolds Number

open access: yesAerospace
The aerodynamic performance of wings degrades severely at low Reynolds number; lift often becomes non-linear, while drag increases significantly, caused by large extents of separation.
Lance W. Traub
doaj   +1 more source

Influence of the Reynolds Number on Transonic Tip Flow

open access: yesInternational Journal of Aerospace Engineering, 2020
The tip flows in modern gas turbines are primarily transonic under realistic conditions and significantly impact the overall thrust performance and safety of the turbines.
Wuheng Feng   +3 more
doaj   +1 more source

A numerical study of the side-wall effects on turbulent bands in channel flow at transitional Reynolds numbers [PDF]

open access: yesarXiv, 2022
We investigated the side-wall effects on turbulent bands in channel flow at transitional Reynolds numbers by direct numerical simulations using the open source spectral-element code Nektar++. The width-to-height aspect ratio of 50:1 is considered for this study.
arxiv  

Dimensionless Investigations on Energy Conversion and Analysis of Interlayer Time in Laser‐Based Powder Bed Fusion of Polymers for Polyamide 12 with Nanoadditives and Polypropylene

open access: yesAdvanced Engineering Materials, EarlyView.
This study explores the energy conversion in powder bed fusion of polymers using laser beam for polyamide 12 and polypropylene powders. It combines material and process data, using dimensionless parameters and numerical models, to enable the prediction of suitable printing parameters.
Christian Schlör   +9 more
wiley   +1 more source

Reynolds number and Shallow Depth Sloshing [PDF]

open access: yes, 2008
The dependence on the Reynolds number of shallow depth sloshing flows inside rectangular tanks subjected to forced harmonic motion is studied in this paper with weakly compressible SPH. We are interested in assessing the in fluenceof viscous effects on the
Cercós Pita, Jose Luis   +4 more
core   +1 more source

Reynolds number dependence of scalar fluctuations in a high Schmidt number turbulent jet [PDF]

open access: yes, 1991
The scalar rms fluctuations in a turbulent jet were investigated experimentally, using high-resolution, laser-induced fluorescence techniques. The experiments were conducted in a high Schmidt number fluid (water), on the jet centerline, over a jet ...
Dimotakis, Paul E., Miller, Paul L.
core   +1 more source

Home - About - Disclaimer - Privacy