Results 51 to 60 of about 2,745 (210)

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

Effect of Gurney Flap Geometry on a S809 Airfoil

International Journal of Aerospace Engineering, 2019
In this paper, the effect of Gurney flap shapes on wind turbine blade airfoil S809 has been studied by numerical simulation. First, the O-type grid is used in the numerical simulation. By comparing with experimental data, such as the lift force, the drag
Li-Shu Hao, Yong-Wei Gao
doaj   +1 more source

Oscillating-Foil Turbine Performance Improvement by the Addition of Double Gurney Flaps and Kinematics Optimization

Energies, 2023
Refinement of the performance of a fully constrained oscillating-foil turbine is carried out via the addition of passive double Gurney flaps. Flaps ranging from hGF=0.005c to 0.075c are added at the trailing edge of the NACA 0015 blade of turbines ...
Benoît Genest, Guy Dumas
doaj   +1 more source

Computational Study of Microflaps with Application to Vibration Reduction in Helicopter Rotors [PDF]

, 2011
Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/90636/1/AIAA-55024-132 ...
Friedmann, Peretz P., Liu, Li, Padthe, Ashwani Kumar   +2 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

Performance Improvement of Hybrid Vertical Axis Wind Turbines Equipped With J‐Shaped Blades

Energy Science &Engineering, Volume 13, Issue 9, Page 4433-4444, September 2025.
This study presents a novel hybrid vertical axis wind turbine, utilizing J‐shaped blades in Darrieus rotor. The proposed configuration shows the potential of J‐shaped blades in improving the overall performance of hybrid rotors. ABSTRACT Vertical axis wind turbines (VAWTs) are emerging as a promising solution for urban wind energy harvesting, owing to ...
Narges Kashani, Mojtaba Mirhosseini, Rouhollah Ahmadi, Hamidreza Mirzaeian   +3 more
wiley   +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

A New Add‐On Flap for Performance Improvement of Small Horizontal Axis Wind Turbines

Energy Science &Engineering, Volume 13, Issue 8, Page 4230-4240, August 2025.
ABSTRACT In the present study, two types of add‐on flaps tangential to the camber line of small horizontal axis wind turbine blade are introduced and their performances on the production power are investigated. The wind turbine of Berlin University (TU‐BERT) is used as the base turbine and the flaps' length, angle, and their locations on the blade are ...
Nima Alizadeh, Alireza Jahangirian
wiley   +1 more source

Effect of Gurney Flap Configuration on the Performance of a Centrifugal Fan

Journal of Applied Fluid Mechanics, 2019
The present investigation is conducted to study the effect of Gurney flap configuration on the performance of a centrifugal fan at different Reynolds numbers.
M. Suresh, N. Sitaram
doaj   +2 more sources

Performance Analysis and Optimization of Dual‐Row Vertical Axis Wind Turbines With Innovative Hybrid Blades

Energy Science &Engineering, Volume 13, Issue 6, Page 3171-3184, June 2025.
This study introduces an innovative dual‐row vertical axis wind turbine with hybrid blades, integrating J‐shaped and conventional blades to enhance overall performance. Using computational fluid dynamics simulations and Taguchi optimization, the turbine achieved a power coefficient of 0.52 under optimal conditions, significantly outperforming ...
H. Mirzaeian, B. Ghobadian, M. Mirhosseini   +2 more
wiley   +1 more source