Results 21 to 30 of about 26,841 (302)

Drag reduction due to recirculating bubble control using plasma actuator on a squareback model

open access: yesMATEC Web of Conferences, 2018
Flow control on a squareback object which resembles many engineering related objects is believed to be highly beneficial. One of the flow characteristics behind the object, recirculating bubble, is known to play significant role in pressure distribution.
Budiarso   +3 more
doaj   +1 more source

Experimental investigation of induced velocity by dielectric barrier discharge plasma actuator in different configurations

open access: yesAIP Advances, 2021
This paper aims to study the effect of different geometrical and electrical parameters, including the voltage, frequency, dielectric thickness, gap width between electrodes, length of electrodes, number of electrodes, and shapes of electrodes, on the ...
Pegah Mohammadpour   +2 more
doaj   +1 more source

Pre-switching bifurcation of a slender jet [PDF]

open access: yes, 2016
In this work, we study the near-field of the jet flow exiting a slot-model with aspect ratio 7.5:1. The core of the slender jet separates into two streams which subsequently merge recomposing a single core jet.
Artana, Guillermo Osvaldo   +2 more
core   +1 more source

Fabrication of a multi-stage plasma synthetic jet actuator using printed electronics

open access: yesAIP Advances, 2021
A new concept of electrode shape and arrangement is proposed to develop a multi-stage plasma synthetic jet actuator for the low-voltage operation. Exposed and covered electrodes, which have complicated shapes due to electrical wiring to the inner side of
Shintaro Sato   +2 more
doaj   +1 more source

Plasma Actuator Tip Flow Control [PDF]

open access: yesMechanical Engineering, 2014
This GE study represents the first open literature report of plasma actuators actually used on gas turbine blading at representative engine flow conditions. The exact mechanisms of interaction between weakly ionized gas and neutral air are still under study; however, the collisional processes between them are responsible for the momentum transfer ...
openaire   +1 more source

On the mechanism of bluff body flow control by pulsed plasma actuator

open access: yesJournal of Fluid Science and Technology, 2014
The flow control performance of the pulse-actuated plasma actuator and their mechanism was investigated. To clarify the flow mechanism of the separation control on a circular cylinder when pulsed plasma actuator is applied, the characteristics of the ...
Takashi MATSUNO   +5 more
doaj   +1 more source

Effects of Input Voltage and Freestream Velocity on Active Flow Control of Passage Vortex in a Linear Turbine Cascade Using Dielectric Barrier Discharge Plasma Actuator

open access: yesEnergies, 2020
Passage vortex exists as one of the typical secondary flows in turbomachines and generates a significant total pressure loss and degrades the aerodynamic performance. Herein, a dielectric barrier discharge (DBD) plasma actuator was utilized for an active
Takayuki Matsunuma, Takehiko Segawa
doaj   +1 more source

Visualization of the Electrohydrodynamic and Thermal Effects of AC-DBD Plasma Actuators of Plate- and Wire-Exposed Electrodes

open access: yesActuators, 2022
The dielectric barrier discharge plasma actuator is a promising flow control device that uses surface discharge. The actuator generates an electrohydrodynamic force and Joule heating that contribute to the flow control.
Yutaka Kaneko   +2 more
doaj   +1 more source

Electrical and Kinetic Model of an Atmospheric RF Device for Plasma Aerodynamics Applications

open access: yes, 2009
The asymmetrically mounted flat plasma actuator is studied using a self-consistent 2-DIM fluid model at atmospheric pressure. The computational model use the drift-diffusion approximation and a simple plasma phenomenological kinetic model.
Martins, Alexandre A.   +1 more
core   +1 more source

Modeling and optimization of the multichannel spark discharge [PDF]

open access: yes, 2017
This paper reports a novel analytic model of this multichannel spark discharge, considering the delay time in the breakdown process, the electric transforming of the discharge channel from a capacitor to a resistor induced by the air breakdown, and the ...
Jia, M.   +5 more
core   +1 more source

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