Results 21 to 30 of about 14,738 (261)

Synthetic jet actuator using bubbles produced by electric discharge

Journal of Fluid Science and Technology, 2014
Over the last decade, synthetic jets suitable for micro-machinery have received attention for their potential to replace continuous jets. The development of synthetic jet actuators with, for example, a diaphragm, a piston, a piezoelectric element, or a ...
Koichi NISHIBE, Tamio FUJIWARA, Hiroshi OHUE, Hideki TAKEZAWA, Kotaro SATO, Kazuhiko YOKOTA   +5 more
doaj   +1 more source

Effect of orifice shape on three-dimensional vortex structure of a synthetic jet

Nihon Kikai Gakkai ronbunshu, 2015
Synthetic jets are produced by periodic ejection and suction of fluid from an orifice induced by movement of a diaphragm inside a cavity, and a synthetic jet actuator is a useful tool for active flow control. The synthetic jet actuators are low operating
Hiroaki HASEGAWA, Tetsuya MIYAKOSHI
doaj   +1 more source

Experimental and numerical research of synthetic jet array

EPJ Web of Conferences, 2016
This paper describes the additional research of the synthetic jet array in a channel flow and continues the paper of authors Dančová, Trávníček and Vít, [1]. Numerical simulations support the experiments from [1] and the influence of the new slope of the
Dančová Petra, Novosád Jan, Vít Tomáš, Trávníček Zdeněk   +3 more
doaj   +1 more source

Acoustic aspects of synthetic jet generated by acoustic actuator

Journal of Low Frequency Noise, Vibration and Active Control, 2018
Thermal overstressing as a result of miniaturization is the foremost challenge for the next generation electronic devices. Shrinking size of electronic devices makes this problem even worse.
Mahesh M Kanase, Lamikant D Mangate, Mangesh B Chaudhari   +2 more
doaj   +1 more source

On a Synthetic Jet Flow [PDF]

PAMM, 2005
AbstractVelocity vector field of a synthetic jet has been investigated experimentally. The synthetic jet is generated by an electrodynamical system designed for control of a free shear layer. To catch unsteady periodical structures the phase average method is applied to time series of instantaneous velocities.
openaire   +1 more source

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

Advanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara, Vincent Rat, Quentin Dubreuil, Patrice Valorge, Simon Goutier, Alain Denoirjean, Olivier Messe, Céline Ruelle, Jean‐Philippe Poli   +8 more
wiley   +1 more source

Thermoacoustic cooling of loudspeaker-driven synthetic jet actuator

Case Studies in Thermal Engineering
To address the issue of declined cooling performance caused by the recirculation of hot jet flow into the cavity of conventional synthetic jet actuators, a loudspeaker-driven thermoacoustic-cooling synthetic jet actuator was developed by integrating a ...
Liu Liu, Geng Chen
doaj   +1 more source

Chiral Phase Change Nanomaterials

Advanced Functional Materials, EarlyView.
This work demonstrates reversible, non‐volatile phase transitions in chiral Ge2${\rm Ge}_2$Sb2${\rm Sb}_2$Te5${\rm Te}_5$ (GST) nanohelices for high‐speed optical modulation of chirality and dynamic control of the state of polarization (SOP). The chiral nanostructures are fabricated using a highly directional, wafer‐scale physical vapor deposition ...
Joshua A. Burrow, Md Shah Alam, Riad Yahiaoui, Evan M. Smith, Ryan Laing, Jules Gardener, Thomas A. Searles, Piyush J. Shah, Shivashankar Vangala, Joshua R. Hendrickson, Andrew M. Sarangan, Imad Agha   +11 more
wiley   +1 more source

Large-eddy Simulations on Flow Structures and Interaction Mechanism of Synthetic Jets in a Crossflow [PDF]

Journal of Applied Fluid Mechanics
The results of large-eddy simulations are presented to illustrate the flow structures generated by the interaction of synthetic jets with a crossflow. The coupled calculations involving the internal flow of the actuator cavity and the external flow are ...
W. Quan, W. Sun, J. Zhang, X. Tan
doaj   +1 more source

Optimization of thermal characteristics of axisymmetric synthetic air jet impingement on flat surface

Journal of Mechanical Engineering and Sciences, 2022
The local heat transfer of axisymmetric synthetic air jet impinging on flat surface is investigated experimentally. Acoustic speaker is used for generation of synthetic air jet with cavity of cylindrical shape.The experiments is conducted for actuator ...
RAVIKUMAR J TALAPATI, NAVEEN HIREMATH
doaj   +1 more source