Results 21 to 30 of about 2,971,967 (301)
Active flow control in supersonic nozzles [PDF]
AIP 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
A Methodology for Robust Load Reduction in Wind Turbine Blades Using Flow Control Devices
Energies, 2021 Decades of wind turbine research, development and installation have demonstrated reductions in levelized cost of energy (LCOE) resulting from turbines with larger rotor diameters and increased hub heights. Further reductions in LCOE by up-scaling turbine
Abhineet Gupta +4 more
doaj +1 more source
Effects of Key Parameters on Airfoil Aerodynamics Using Co-Flow Jet Active Flow Control
Aerospace, 2022 The Co-Flow Jet (CFJ) technique is an effective way to enhance the aerodynamics of airfoils. The present study is to comprehensively investigate the effects of CFJ key parameters, viz., the jet momentum coefficient, the injection slot location, the ...
Ruochen Wang +3 more
doaj +1 more source
Active Feedback Control of a Web Flutter Using Flow Control Devices
Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2010 This paper develops a non-contact active feedback control of web flutter in a narrow passage by using movable plates set at inlet and outlet of the passage.
Yusuke HAYASHI +2 more
doaj +1 more source
Active Flow Control of Helicopter Rotor Based on Coflow Jet
International Journal of Aerospace Engineering, 2022 When a helicopter rotor undergoes flow separation, the drag of the rotor increases substantially, as does the power demand, which seriously affects the aerodynamic performance and flight safety of the helicopter.
Jiaqi Liu +4 more
doaj +1 more source
Active gaze control improves optic flow-based segmentation and steering. [PDF]
PLoS ONE, 2012 An observer traversing an environment actively relocates gaze to fixate objects. Evidence suggests that gaze is frequently directed toward the center of an object considered as target but more likely toward the edges of an object that appears as an ...
Florian Raudies +2 more
doaj +1 more source
Active Flow Control at Low Reynolds Numbers by Periodic Airfoil Morphing [PDF]
, 2016 This paper investigates the application of a periodically deforming airfoil surface for the purpose of flow control at low Reynolds numbers. A physical model has been fabricated by bonding Macro Fiber Composite (MFC) actuators to the underside of a NACA ...
Debiasi, M +3 more
core +1 more source
Active flow separation control at the outer wing [PDF]
CEAS Aeronautical Journal, 2019 Within the European project AFLoNext, one of the technological streams is dedicated to the investigation of active flow control (AFC) to increase the robustness of the wing tip design at takeoff conditions, whilst allowing the optimization of aerodynamic efficiency in cruise. AFC is used to delay the wing tip stall, which is caused by vortex breakdown,
Rosenblum, Jean-Pierre +10 more
openaire +4 more sources
Advances in Flow Control Methods for Pump-Stall Suppression: Passive and Active Approaches
EnergiesThis article provides a comprehensive review of key approaches to suppressing stall flow in pumps, offering insights to enhance pump performance and reliability.
Hongbo Zhao +5 more
doaj +1 more source
Performance Assessment of Fluidic Oscillators Tested on the NASA Hump Model
Fluids, 2021 Flow separation control over a wall-mounted hump model was studied experimentally to assess the performance of fluidic oscillators (sweeping jet actuators). An array of fluidic oscillators was used to control flow separation.
Mehti Koklu
doaj +1 more source