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Flow Control, Active and Passive Applications

open access: yesApplied Sciences, 2023
The Boundary Layer (BL) dynamic performance greatly affects the forces acting on any Bluff body [...]
Josep M. Bergadà, Gabriel Bugeda
doaj   +6 more sources

Centrifugation-assisted lateral flow assay platform: enhancing bioassay sensitivity with active flow control [PDF]

open access: yesMicrosystems & Nanoengineering
Lateral flow assays (LFAs) are widely used in point-of-care testing (POCT) due to their simplicity and rapid operation. However, their reliance on passive capillary flow limits sensitivity, making it challenging to detect low-abundance biomarkers ...
Hang Yuan   +7 more
doaj   +2 more sources

Active Flow Control on Vertical Tail Models. [PDF]

open access: yesAIAA J, 2019
Active flow control (AFC) subscale experiments were conducted at the Lucas Wind Tunnel of the California Institute of Technology. Tests were performed on a generic vertical tail model at low speeds. Fluidic oscillators were used at the trailing edge of the main element (vertical stabilizer) to redirect the flow over the rudder and delay or prevent flow
Andino MY   +6 more
europepmc   +4 more sources

Wind Turbine Enhancement via Active Flow Control Implementation

open access: yesApplied Sciences
The present research enhances the efficiency of an airfoil section from the DTU-10MW Horizontal Axis Wind Turbine (HAWT) via Active Flow Control (AFC) implementation and when using synthetic jets (SJ).
Marc Lahoz   +3 more
doaj   +4 more sources

Effects of Simultaneous Suction and Blowing over an Airfoil on Flow Behavior and Aerodynamic Coefficients [PDF]

open access: yesIranica Journal of Energy and Environment, 2022
In this study, the simultaneous effect of suction and blowing on the boundary layer and the effect of control parameters on the flow separation from a NACA 0012 airfoil is numerically analyzed.
S. Abbasi, S. Esmailzadeh Vali
doaj   +1 more source

Gym-preCICE: Reinforcement learning environments for active flow control

open access: yesSoftwareX, 2023
Active flow control (AFC) involves manipulating fluid flow over time to achieve a desired performance or efficiency. AFC, as a sequential optimisation task, can benefit from utilising Reinforcement Learning (RL) for dynamic optimisation. In this work, we
Mosayeb Shams, Ahmed H. Elsheikh
doaj   +1 more source

Flow Separation Control on NACA0015 Airfoil Using Synchronized Jet Actuator [PDF]

open access: yesJournal of Applied Fluid Mechanics, 2022
In this study, a novel fluidic jet actuator is designed to control flow separation on a NACA0015 airfoil at various angles of attack. The U-shaped jet actuator has two rectangular slots implemented near the leading edge of the airfoil.
F. Sonkaya, S. Cadirci, D. Erdem
doaj   +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

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