Results 31 to 40 of about 1,736 (190)

Effect of Gurney Flaps on Non-Planar Wings at Low Reynolds Number

Aerospace
The effect of spanwise wing non-planarity, employed in conjunction with a Gurney flap, is presented. Testing was undertaken in a low-speed wind tunnel using a rectangular wing with an aspect ratio of three. The outer one-third of the wing was non-planar,
Lance W. Traub
doaj   +1 more source

Numerical Analysis on the Effectiveness of Gurney Flaps as Power Augmentation Devices for Airfoils Subject to a Continuous Variation of the Angle of Attack by Use of Full and Surrogate Models

Energies, 2020
The disclosing of new diffusion frontiers for wind energy, like deep-water offshore applications or installations in urban environments, is putting new focus on Darrieus vertical-axis wind turbines (VAWTs).
Piotr Wiśniewski, Francesco Balduzzi, Zbigniew Buliński, Alessandro Bianchini   +3 more
doaj   +1 more source

The discovery of male Caligus brevicaudatus Scott, 1901 (Copepoda: Caligidae) parasitic on tub gurnard, Chelidonichthys lucerna (Linnaeus) from the eastern Mediterranean [PDF]

, 2015
© Institute of Parasitology, Biology Centre CAS. Folia Parasitologica is an open access journal since 2015, this article is published under the terms of a Creative Commons License (http://creativecommons.org/licenses/by/4.0/).
Barnard, Benkirane, Choi, Froese, Hamond, Hayes, Heegaard, Heller, Ho, Ho, Hureau, Huys, Kabata, Kabata, Kroyer, Markewitsch, Melotti, Oktener, Oldewage, Oldewage, Oldewage, Palm, Radujkovic, Radujkovic, Reichenbach-Klinke, Rohde, Scott, Scott, Scott, Vaissiere, von Oorde   +30 more
core   +1 more source

Active Flow Control by Adaptive Blade Systems in Periodic Unsteady Flow Conditions [PDF]

, 2014
A test stand to investigate the rotor-stator interaction of a compressor stage is presented. This water channel allows to investigate the influence of wake depressions and choking to a stator cascade.
Hammer, Steffen, Liebich, Robert, Meyer, Robert, Peter, Julija, Phan, Dat Tien, Thamsen, Paul Uwe, Werder, Tobias   +6 more
core   +1 more source

Pengaruh Penambahan Gurney Flap pada Airfoil NACA 0015

Creative Research in Engineering (CERIE), 2023
Airfoil merupakan suatu geometri yang sangat populer digunakan pada sayap pesawat terbang, sehingga menjadikan penelitian mengenai airfoil sangat populer di kalangan peneliti dibidang aerodinamika untuk meningkatkan nilai koefisien angkat. Salah satu cara yang efektif untuk meningkatkan kofisien angkat adalah dengan penambahan gurney flap.
Ilham Wibowo, Bagus Radiant Utomo, Desi Gustiani, Muhammad Iwan   +3 more
openaire   +1 more source

5 MW Wind Turbine Annual Energy Production Improvement by Flow Control Devices

Proceedings, 2018
Several flow control devices have been studied in recent years. Majority of them were designed firstly for aeronautical purposes. At present many research is aimed to introduce these devices in wind turbines (WTs) in order to optimize their aerodynamic ...
Aitor Saenz-Aguirre, Sergio Fernandez-Resines, Iñigo Aramendia, Unai Fernandez-Gamiz, Ekaitz Zulueta, Jose Manuel Lopez-Guede, Javier Sancho   +6 more
doaj   +1 more source

Theoretical performances of double Gurney Flap equipped the VAWTs [PDF]

, 2012
A Gurney flap is simply a flat plate attached perpendicularly to the lower surface of an airfoil or wing trailing edge. A T-strip or double Gurney flap is attached to both the upper and lower surfaces.
Horia DUMITRESCU, Ion MALAEL, Radu BOGATEANU   +2 more
core   +1 more source

Navier-Stokes Analysis of Airfoils with Gurney Flap [PDF]

Journal of Aircraft, 2007
Two dimensional steady state Navier-Stokes computations were performed to determine the effect of Gurney flap on NACA 4412 and NACA 0011 airfoils. Gurney flap sizes selected for the study range from 0.5% to 4% of the airfoil chord. A compressible Navier-Stokes solver with Baldwin-Lomax turbulence model, JUMBO2D, is used to predict the flow field around
Manish K. Singh, K. Dhanalakshmi, S. K. Chakrabartty   +2 more
openaire   +1 more source

Study on the impact of Gurney flap parameters on rotor performance improvement

Hangkong gongcheng jinzhan
At present, most of the research on installing Gurney flaps is focused on two-dimensional airfoils. The three-dimensional blade model is established to investigate the influence of different Gurney flap parameters on rotor aerodynamic performance ...
LIU Shaoteng, LIU Xiangnan, SHAO Tianshuang, WANG Puyuan   +3 more
doaj   +1 more source

Computational Methods for Modelling and Optimization of Flow Control Devices

Energies, 2020
Over the last few years, the advances in size and weight for wind turbines have led to the development of flow control devices. The current work presents an innovative method to model flow control devices based on a cell-set model, such as Gurney flaps ...
Alejandro Ballesteros-Coll, Unai Fernandez-Gamiz, Iñigo Aramendia, Ekaitz Zulueta, Jose Manuel Lopez-Guede   +4 more
doaj   +1 more source