Results 31 to 40 of about 25,120 (234)

Educing coherent eddy structures in air curtain systems [PDF]

, 2008
The work reported here comes within a broader research program dealing with ambiance separation or confining by means of air curtains (plane air jets). The process is studied experimentally by Particle Image Velocimetry (PIV).
Beaubert, Bonnet, Etkin, Gupta, Hsiao, Hu, Hussain, Jeong, Karine Loubière, Lesieur, Maurel, Maurel, Michel Pavageau, Partyka, Pavageau, Pavageau, Rajagopalan, Rajagopalan, Robinson, Robinson, Sakakibara, Schram, Simper, Vandsburger, Yokobori, Zaman   +25 more
core   +2 more sources

Model for Wall Shear Stress from Obliquely Impinging Planar Underexpanded Jets

Applied Sciences, 2022
Though inclined under-expanded planar jets are used in many practical applications, the wall stress resulting from their impingement has not been adequately characterized.
Patrick Fillingham, Arjun Viswanathan, Igor V. Novosselov   +2 more
doaj   +1 more source

Large-scale instabilities in a STOVL upwash fountain [PDF]

, 2005
The fountain flow created by two underexpanded axisymmetric, turbulent jets impinging on a ground plane was studied through the use of laser-based experimental techniques. Velocity and turbulence data were acquired in the jet and fountain flow regions
Cabrita, P. M., Knowles, K., Saddington, Alistair J.   +2 more
core   +1 more source

Nanofluids against traditional fluids: a comprehensive analysis of impingement jets

Journal of Taibah University for Science
Efficient temperature control plays a pivotal role across various industrial sectors, encompassing manufacturing and electronics. In certain cooling system scenarios, the application of impingement jet technology has emerged as a dominant contender ...
Raheem K. Ajeel, Saba N. Fayyadh, Hayder Kareem Talla, Sakhr M. Sultan, Mohd Faizal Fauzan   +4 more
doaj   +1 more source

Study of the electrical and thermal performances of photovoltaic thermal collector-compound parabolic concentrated

Results in Physics, 2018
The importance of utilizing the solar energy as a very suitable source among multi-source approaches to replace the conventional energy is on the rise in the last four decades.
Ahed Hameed Jaaz, Kamaruzzaman Sopian, Tayser Sumer Gaaz   +2 more
doaj   +1 more source

Applications of jet–jet/film impingement for atomization enhancement

Frontiers in Physics
This mini-review mainly focuses on the fundamental problem of jet–jet/film impingement exhibiting superior fragmentation and atomization characteristics compared to single-jet injection; this has been widely used in agricultural irrigation and combustion
Chengming He, Zehao Feng, Zhenyu Zhang, Zhenyu Zhang, Zhixia He   +4 more
doaj   +1 more source

Double Helical Plasmonic Antennas

Advanced Functional Materials, EarlyView.
Plasmonic double helical antennas funnel circularly polarized light to the nanoscale, offering strong chiroptical interaction and directional light emission. Extending a single helix design tool, this study combines numerical modeling with experimental validation, revealing large, broadband dissymmetry factors in the visible range.
Aleksei Tsarapkin, Luka Zurak, Krzysztof Maćkosz, Lorenz Löffler, Victor Deinhart, Ivo Utke, Thorsten Feichtner, Katja Höflich   +7 more
wiley   +1 more source

Axisymmetric wall jet development in confined jet impingement

Physics of Fluids, 2017
The flow field surrounding an axisymmetric, confined, impinging jet was investigated with a focus on the early development of the triple-layered wall jet structure. Experiments were conducted using stereo particle image velocimetry at three different confinement gap heights (2, 4, and 8 jet diameters) across Reynolds numbers ranging from 1000 to 9000 ...
Tianqi Guo, Matthew J. Rau, Pavlos P. Vlachos, Suresh V. Garimella   +3 more
openaire   +4 more sources

Radiation‐Resistant Aluminum Alloy for Space Missions in the Extreme Environment of the Solar System

Advanced Materials, EarlyView.
A novel ultrafine‐grained aluminum crossover alloy exhibits unprecedented radiation resistance and mechanical stability under extreme irradiation doses up to 100 dpa. The exceptional resilience arises from thermodynamically stable T‐phase precipitates, enabling lightweight structural materials for next‐generation spacecraft and extraterrestrial ...
Patrick D. Willenshofer, Matheus A. Tunes, Hi T. Vo, Lukas Stemper, Markus Alfreider, Oliver Renk, Graeme Greaves, Daniel Kiener, Peter J. Uggowitzer, Stefan Pogatscher   +9 more
wiley   +1 more source

A Review of Flow Field and Heat Transfer Characteristics of Jet Impingement from Special-Shaped Holes

Energies
The jet impingement cooling technique is regarded as one of the most effective enhanced heat transfer techniques with a single-phase medium. However, in order to facilitate manufacturing, impingement with a large number of smooth circular hole jets is ...
Liang Xu, Naiyuan Hu, Hongwei Lin, Lei Xi, Yunlong Li, Jianmin Gao   +5 more
doaj   +1 more source