Vortex ring breakdown dominating the entrainment of a synthetic jet

C Xu, J Wang - Journal of Fluid Mechanics, 2024 - cambridge.org
The understanding of the entrainment mechanism of synthetic jets can help optimise the
synthetic jet actuators in engineering applications. It is generally believed that vortex rings or …

Measurements versus numerical simulations for slotted synthetic jet actuator

A Palumbo, M Chiatto, L De Luca - Actuators, 2018 - mdpi.com
In many studies concerning synthetic jet flow fields the analysis is usually restricted to simple
configurations, such as a single diaphragm oscillating in a cylindrical cavity, which is linked …

Novel nozzle shapes for synthetic jet actuators intended to enhance jet momentum flux

J Kordík, Z Trávníček - Actuators, 2018 - mdpi.com
An axisymmetric synthetic jet actuator based on a loudspeaker and five types of flanged
nozzles were experimentally tested and compared. The first (reference) type of nozzle was a …

Axis switching in low to moderate aspect ratio rectangular orifice synthetic jets

JC Straccia, JAN Farnsworth - Physical Review Fluids, 2021 - APS
The dynamics of finite-span vortex rings expelled from a synthetic jet actuator is studied
experimentally using stereoscopic particle image velocimetry as well as being modeled with …

The effect of fractal orifices on synthetic jets

C Xu, J Wang - Physics of Fluids, 2024 - pubs.aip.org
The effect of fractal orifices on the characteristics and vortex rings of synthetic jets is
investigated. Synthetic jets with circular and fractal orifices, as well as a continuous jet with a …

Advances in Flow Control by Means of Synthetic Jet Actuators

M Chiatto, L de Luca - Actuators, 2023 - mdpi.com
The need for flow control is widely recognized in various fields of technological applications
such as fluid dynamics, atomization, heat transfer, and others. The common goal to be …

Understanding pulsed jet impingement cooling by instantaneous heat flux matching at solid-liquid interfaces

KM Rabbi, J Carter, SA Putnam - Physical Review Fluids, 2020 - APS
In recent decades, jet impingement cooling has gained significant attention due to its ability
to remove large thermal loads from local heating zones. This study demonstrates the …

[PDF][PDF] The effect of fractal orifices on the entrainment of synthetic jets

CY Xu, JJ Wang - … Symposium on Turbulence and Shear Flow …, 2024 - tsfp-conference.org
The effect of fractal orifices on the entrainment of synthetic jets is investigated. Synthetic jets
with circular and fractal orifices, as well as a continuous jet with a circular orifice at Rej …

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

W Quan, W Sun, J Zhang, X Tan - Journal of Applied Fluid …, 2024 - jafmonline.net
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 …

Effect of Fractal Orifice on Characteristics of Turbulent/Non-turbulent Interface in Synthetic Jet Flow

C Xu, J Wang - IUTAM Symposium on Turbulent/Non-Turbulent …, 2024 - Springer
Synthetic jets with circular and fractal orifices are experimentally investigated using time-
resolved stereoscopic particle image velocimetry. The synthetic jet with circular orifice …