Results 11 to 20 of about 73,982 (212)

Gust–Airfoil Coupling with a Loaded Airfoil [PDF]

open access: yesAIAA Journal, 2021
The unsteady load response of an airfoil encountering a gust is often modeled using analytical transfer functions, which assume idealized behavior of both the flow and the airfoil.
Young, Anna M., Smyth, Amanda S. M.
openaire   +1 more source

Experimental study of the effect of a slat on the aerodynamic performance of a thick base airfoil [PDF]

open access: yesWind Energy Science, 2022
There is continuous effort to try and improve the aerodynamic performance of wind turbine blades. This experimental study focusses on the addition of a passive slat on a thick airfoil typically used in the inboard part of commercial wind turbine blades ...
A. Viré   +3 more
doaj   +1 more source

A New Method of Sectional Expression of Wind Turbine Airfoil Function

open access: yesEnergies, 2021
To expand the airfoil database and realize the reverse digital airfoil design, this paper proposes a new sectional expression function of wind turbine airfoil based on the Joukowski transformation and derives the function equation for the novel airfoil ...
Zhaohuang Zhang   +3 more
doaj   +1 more source

Numerical Simulation of Random Cavitation Suppression Based on Variable NACA Airfoils

open access: yesApplied Sciences, 2021
In order to suppress the cavitation of an airfoil under random operating conditions, a deformable covering was constructed in the cavitation prone area of the NACA0012 airfoil.
Weidong Shi   +5 more
doaj   +1 more source

Airfoil shape optimization using Bézier curve and genetic algorithm

open access: yesAviation, 2022
There are different types of airfoil used in many applications such as energy production, aerospace, mixing of fluid products. Design optimization studies are still being carried out on the airfoil type structures.
Hatice Cansu Ayaz Ümütlü, Zeki Kiral
doaj   +1 more source

Effects of leading-edge defects of the NACA 0015 airfoil on aerodynamic performance with various Reynolds number

open access: yesJEMMME (Journal of Energy, Mechanical, Material, and Manufacturing Engineering), 2023
This study investigates and identifies the effects produced by defect on an airfoil when compared to a smooth airfoil. The defect used in this research is of the surface concaved defect (SDD) type, with a deep defect characterized by a smooth sunken ...
Ulfa Hanifah Nurhaliza   +3 more
doaj   +1 more source

Airfoil Robust Optimization Based on Convolutional Neural Network and Polynomial Chaos Method

open access: yesHangkong gongcheng jinzhan, 2021
In conventional airfoil optimization design method, the aerodynamic performance of the optimal airfoil can deteriorate at the non-design point, so it is necessary to study the airfoil robust optimization method.An airfoil robustness design method based ...
GAO Yuan   +4 more
doaj   +1 more source

Aerodynamic Characteristics of Morphing Supercritical Airfoils for Aircraft with All-Stage High Performance

open access: yesApplied Sciences, 2022
Morphing airfoil is a promising technology for future aircraft to realize all-stage high performance. In the present paper, a conceptual aircraft with morphing airfoil is proposed and the aerodynamic characteristics of three types of morphing airfoils ...
Yuwei Cheng   +4 more
doaj   +1 more source

Investigation of the aerodynamic effects of bio-inspired modifications on airfoil at low Reynolds number

open access: yesJournal of Mechanical Engineering and Sciences, 2023
A numerical study was performed to investigate flow behaviors around bio-inspired modified airfoils compared with NACA 4412 airfoil at Re=5.8x104 by solving the two-dimensional, RANS equations with k-ω STT turbulence model. The obtained results reveal a
Hacımurat Demir, Batuhan Kaya
doaj   +1 more source

Research on Sidewall Interference Control in Airfoil Wind Tunnel Test Based on Vortex Generator

open access: yesHangkong gongcheng jinzhan, 2021
The wind tunnel sidewall boundary layer needs to be controlled since the sidewall interference in the wind tunnel test of the large-thickness airfoil is serious.In this paper, passive vortex generators(VG) are used at first time to control the sidewall ...
WEI Binbin   +4 more
doaj   +1 more source

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