Results 41 to 50 of about 975,921 (127)

CFD analysis of wing trailing edge vortex generator using serrations

EPJ Web of Conferences, 2014
This study presents computational results of a NACA0012 base wing with the trailing edge modified to incorporate triangular serrations. The effect of the serrations were investigated in three stages, the deflection angle of the serration with respect to ...
Alawadhi H. A., Alex A. G., Kim Y. H.
doaj   +1 more source

Increase in high-lift devices efficiency of swept wing

Научный вестник МГТУ ГА, 2020
The use of Fowler flaps and slotted slats in sweptwing aircraft is the standard solution to increase wing lift at take off and landing. In the literature this solution is known as a classical option of high-lift system of commercial subsonic aircraft ...
Yu. S. Mikhailov
doaj   +1 more source

Numerical Study of the Active Flow Control Effect on the Wind Turbine Blade Section Using a Trailing Edge Flap

Wind Energy
Wind turbines operating in unsteady and complex environments often encounter asymmetric and unsteady vortex flows on the suction side of the blade, leading to airflow separation and dynamic stall.
S. U. N. ZhiXin, L. I. U. HanTao, L. I. HaiQiao   +2 more
doaj   +1 more source

Aerodynamic Performance of Different Trailing-edge Serrations for High Reynolds Number Flows around Wing-flap System [PDF]

Journal of Applied Fluid Mechanics
In the present work different trailing-edge serration models are designed and their aerodynamic performances at realistic landing conditions around a wing-flap system are investigated. The serration model with the best performance is then introduced. The
S. Ahmadkhah, A. Jahangirian, A. Zarinvafa   +2 more
doaj   +1 more source

Self-noise produced by an airfoil with nonflat plate trailing-edge serrations [PDF]

, 2013
This paper represents the results of an experimental study aimed at reducing the airfoil self-noise by the trailing edge serration of four different sawtooth geometries (defined in the serration angle and length).
Vathylakis, A, Joseph, PF, Gruber, M, Chong, TP   +3 more
core   +1 more source

Active trailing edge flap system fault detection via machine learning [PDF]

Wind Energy Science
Active trailing edge flap (AFlap) systems have shown promising results in reducing wind turbine (WT) loads. The design of WTs relying on AFlap load reduction requires implementing systems to detect, monitor, and quantify any potential fault or ...
A. Gamberini, A. Gamberini, I. Abdallah
doaj   +1 more source

Trailing Edge Noise Reduction by Passive and Active Flow Controls [PDF]

, 2014
This paper presents the results on the use of porous metal foams (passive control) and dielectric barrier surface plasma actuations (active control) for the reduction of vortex shedding tonal noises from the nonflat plate type trailing edge serration in ...
Kim, JH, Tze Pei Chong, Vathylakis, A, Laith Al-Sadawi, Al-Sadawi, L, Alexandros Vathylakis, Jung Hoon Kim, Chong, TP   +7 more
core   +1 more source

Structural and Topological Optimization of a Novel Elephant Trunk Mechanism for Morphing Wing Applications

Aerospace
A novel mechanism for seamless morphing trailing edge flaps is presented in this paper. This bio-inspired morphing concept is derived from an elephant’s trunk and is called the Elephant Trunk Mechanism (ETM).
Mir Hossein Negahban, Alexandre Hallonet, Marie Noupoussi Woumeni, Constance Nguyen, Ruxandra Mihaela Botez   +4 more
doaj   +1 more source

Optimization and Experimental Investigation of a Single-Actuation Compliant Morphing Trailing Edge for Multiple Aerodynamic Configurations

Actuators
This work presents a low-fidelity optimization method for a compliant morphing wing trailing-edge structure, developed to achieve multiple optimized aerodynamic shapes under combined aerodynamic and control loads using a single actuation pathway ...
Martynas Lendraitis, Vaidas Lukoševičius   +1 more
doaj   +1 more source

Computation of Trailing Edge Noise with a Discontinuous Galerkin Method [PDF]

, 2010
Trailing edge noise of a semi-infinite, thin, flat plate situated in low Mach number flow is computed in two spatial dimensions. The Acoustic Perturbation Equations (APE), which are employed as governing equations, are discretized via a Discontinuous ...
M. Bauer, Bauer, Marcus
core   +1 more source