Results 31 to 40 of about 15,679,398 (295)

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

Journal 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

Slug flow regime in a flowline with U-shape riser

Case 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, Somtochukwu Godfrey Nnabuife, Yi Cao, Liyun Lao, James Whidborne   +4 more
doaj   +1 more source

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, Mario A. Rotea, Mayank Chetan, Mohammad S. Sakib, D. Todd Griffith   +4 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, Masahiro WATANABE, Kensuke HARA   +2 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, Guoxin Zhang, Pei Ying, Xiaoping Ma   +3 more
doaj   +1 more source

Application of a Combined Active Control and Fault Detection Scheme to an Active Composite Flexible Structure. [PDF]

, 2006
In this paper, the problem of increasing reliability of active control procedure is considered. Indeed, a design method of rejection perturbation in presence of potentially faults, on a flexible structure with integrated piezo-ceramics, is presented. The
VERGÉ, Michel, MECHBAL, Nazih, COFFIGNAL, Gérard, GANAPATHI, Manickam   +3 more
core   +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, Rongqian Chen, Qiaochu Song, Yancheng You, Zheyu Shi   +4 more
doaj   +1 more source

Magnetically Actuated Microvalves for Active Flow Control [PDF]

Journal of Physics: Conference Series, 2006
The reattachment of separated air flows can be actively controlled by blowing oscillatory air jets in the boundary layer, through submillimetric holes situated near the separation edge. To achieve such pulsed jets, a high flow rate, high actuation frequency microvalve was designed, fabricated and characterized.
Ducloux, Olivier, Deblock, Yves, Talbi, Abdelkrim, Gimeno, Leticia, Tiercelin, Nicolas, Pernod, Philippe, Preobrazhensky, Vladimir L., Merlen, Alain   +7 more
openaire   +3 more sources

Active flow control systems architectures for civil transport aircraft [PDF]

, 2010
Copyright @ 2010 American Institute of Aeronautics and AstronauticsThis paper considers the effect of choice of actuator technology and associated power systems architecture on the mass cost and power consumption of implementing active flow control ...
Crowther, W. J.; id_orcid, Liddle, S. C., W. J. Crowther, Jabbal, M, Liddle, SC, S. C. Liddle, Liddle, Stephen, Jabbal, M., Crowther, WJ, M. Jabbal   +9 more
core   +1 more source