Results 21 to 30 of about 15,627,696 (292)

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

Influence of different blowing parameters on flow control on an airfoil

open access: yesJournal of Mechanical Engineering and Sciences, 2022
A numerical study on flow separation control is conducted for an airfoil with a blowing jet. In this regard, the effect of different parameters of air blowing on stall controlling and flow structure over NACA 0012 is followed.
Sarallah Abbasi
doaj   +1 more source

Nacelle intake flow separation reduction at cruise condition using active flow control

open access: yesPropulsion and Power Research, 2022
Turbofan engine intakes are designed to provide separation-free flow at the fan face over a wide range of operating conditions. But at some off-design conditions, like at high flight speeds and high angles of attack (AoA), the aero engine intake may ...
Vinayak Ramachandran Nambiar   +1 more
doaj   +1 more source

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

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

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

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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