Results 21 to 30 of about 1,012,225 (263)

Pneumatic Microballoons for Active Control of the Vibration-Induced Flow

open access: yesMicromachines, 2023
Vibration-induced flow (VIF), in which a mean flow is induced around a microstructure by applying periodic vibrations, is increasingly used as an active flow-control technique at the microscale.
Taku Sato   +3 more
doaj   +1 more source

Wind Turbine Gust Load Alleviation with Active Flow Control

open access: yesEnergies, 2022
Large wind turbine rotors are becoming more common in utility-scale wind power, especially for offshore wind plants. However, the trend toward large rotors can be limited by their ability to manage dynamic and extreme loads.
Chang Liu   +2 more
doaj   +1 more source

Active Control of an Axisymmetric Turbulent Jet Using Moving Delta Tabs

open access: yesJournal of Fluid Science and Technology, 2008
For the development of an active control of a turbulent jet, measurements of an axisymmetric turbulent jet were performed with multiple “moving delta tabs.” Five computercontrolled delta tabs, which can be driven independently, were installed
Kouji NAGATA   +3 more
doaj   +1 more source

Numerical Study of Flow Control on Simplified High-Lift Configurations [PDF]

open access: yesJournal of Applied Fluid Mechanics, 2023
Enhancement in the aerodynamic performance of wings and airfoils is very notable when Active Flow Control (AFC) is applied to Short Take-off and Landing aircraft (STOL).
B. Goffert   +3 more
doaj   +1 more source

INFLUENCE OF MEMBRANE AMPLITUDE AND FORCING FREQUENCY ON SYNTHETIC JET VELOCITY

open access: yesTASK Quarterly, 2015
This paper presents the results of numerical investigations of a synthetic jet actuator for an active flow control system. The Moving Deforming-Mesh method as a boundary condition is used to capture the real physical phenomenon.
MARCIN KUROWSKI, PIOTR DOERFFER
doaj   +1 more source

Slug flow regime in a flowline with U-shape riser

open access: yesCase Studies in Chemical and Environmental Engineering, 2022
A suitable initial point for understanding multiphase flows is a phenomenological description of the mechanism of geometric distributions or flow patterns that are observed.
Henry Tandoh   +4 more
doaj   +1 more source

Plasma Synthetic Jet Actuators for Active Flow Control

open access: yesActuators, 2018
The plasma synthetic jet actuator (PSJA), also named as sparkjet actuator, is a special type of zero-net mass flux actuator, driven thermodynamically by pulsed arc/spark discharge. Compared to widely investigated mechanical synthetic jet actuators driven
Haohua Zong   +3 more
doaj   +1 more source

3D Simulation of the Effects of the Plasma Actuator on the Unsteady, Turbulent and Developing Flow within a Circular Duct [PDF]

open access: yesJournal of Heat and Mass Transfer Research, 2019
The objective of current paper is 3D simulation of turbulent, developing flow and unsteady within a circular duct in presence of the body force vector persuaded by Dielectric barrier discharge (DBD) plasma actuator inside the surface of geometry for the ...
Hamidreza Yazdani, Mohammad Sefid
doaj   +1 more source

Active Flow Control of a Supercritical Airfoil and Flap with Sweeping Jets

open access: yesApplied Sciences, 2023
To provide sufficient lift during takeoff and landing, large aircraft are equipped with complicated high-lift devices. The use of simple flaps coupled with active flow control (AFC) can achieve lift improvement while reducing mechanical structure and ...
Shuai Luo   +5 more
doaj   +1 more source

Active flow control in supersonic nozzles [PDF]

open access: yesAIP Conference Proceedings, 2018
Active flow control in supersonic nozzle mainly concerns Fluidic Thrust Vectoring (FTV) strategies. Thrust Vectoring in fixed symmetric nozzles can be obtained by generating a local perturbation at wall causing flow separations, asymmetric pressure distributions and therefore, the vectoring of the primary jet thrust. The control action can be steady, e.
openaire   +2 more sources

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