Results 11 to 20 of about 1,024,804 (310)

Active Flow Control for Helicopters

open access: yes, 2013
Several active flow control helicopter applications aimed at improving aerodynamic performance have been studied at Onera and are presented in this paper. The distinction between applications for non-rotating or non-lifting parts and for rotating parts is presented.
Le Pape, A., Lienard, C., Bailly, J.
core   +5 more sources

Active flow control in an axial compressor for stability improvement : On the effect of flow control on stall inception [PDF]

open access: yes, 2021
In this paper, the effect of an active flow control system on the onset mechanism of rotating stall in an axial compressor is experimentally investigated.
ROUSSETTE, Olivier   +3 more
core   +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

Active Flow Control: Recent Advances in Fundamentals and Applications

open access: yes, 2023
Active flow control (AFC) utilizes local active perturbations to induce changes in global flow behavior that result in aero/hydrodynamic performance improvement.

core   +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

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

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

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