Results 11 to 20 of about 21,634 (177)

Robust Optimization of Natural Laminar Flow Airfoil Based on Random Surface Contamination

open access: yesApplied Sciences, 2022
Natural laminar-flow (NLF) airfoils are one of the most promising technologies for extending the range and endurance of aircrafts. However, there is a lack of methods for the optimization of airfoils based on the surface contamination that destroys the ...
Shunshun Wang, Zheng Guo
doaj   +1 more source

Study on Multimodality in Aerodynamic Airfoil Optimization Design

open access: yesHangkong gongcheng jinzhan, 2019
Studying on the multi-extremum characteristics of airfoil aerodynamic shape optimization design space is helpful for people to choose a reasonable optimization algorithm in the airfoil design stage, improve the optimization efficiency and shorten the ...
He Meng   +3 more
doaj   +1 more source

Optimization and Design of a Flexible Droop-Nose Leading-Edge Morphing Wing Based on a Novel Black Widow Optimization Algorithm—Part I

open access: yesDesigns, 2022
An aerodynamic optimization for a Droop-Nose Leading-Edge (DNLE) morphing of a well-known UAV, the UAS-S45, is proposed, using a novel Black Widow Optimization (BWO) algorithm.
Musavir Bashir   +3 more
doaj   +1 more source

Optimization of Nano-Rotor Blade Airfoil Usinf Controlled Elitist NSGA-II [PDF]

open access: yes, 2014
The aerodynamic performance of airfoil at ultra-low Reynolds number has a great impact on the propulsive performance of nano rotor. Therefore, the optimization of airfoil is necessary before the design of nano rotor. Nano rotor blade airfoil optimization
Dong, Longlei   +4 more
core   +1 more source

An Improved Multi-Objective Particle Swarm Optimization Method for Rotor Airfoil Design

open access: yesAerospace, 2023
In this study, a multi-objective aerodynamic optimization is performed on the rotor airfoil via an improved MOPSO (multi-objective particle swarm optimization) method.
Yongchuan Wu, Gang Sun, Jun Tao
doaj   +1 more source

An Airfoil Shape Optimization Technique coupling PARSEC Parameterization and Evolutionary Algorithm [PDF]

open access: yes, 2014
In this work an innovative optimization process for airfoil geometry design is introduced. This procedure is based on the coupling of a PARSEC parameterization for airfoil shape and a genetic algorithms (GA) optimization method to find Nash equilibria ...
E. D'Amato, E. Daniele, P. Della Vecchia
core   +1 more source

Inexpensive airfoil shape optimization for vertical axis wind turbine and its validation

open access: yesJournal of Fluid Science and Technology, 2015
In this research, an inexpensive aerodynamic shape optimization of airfoil is performed for Darrieus type vertical axis wind turbine (VAWT). Computational fluid dynamics (CFD) evaluations of various airfoil shapes are treated inexpensively by considering
Wataru YAMAZAKI, Yuta ARAKAWA
doaj   +1 more source

Integral Airfoil Generation of Multi-rotor Aircraft Based on Optimization of Upper Wing Contour and CFD Simulation [PDF]

open access: yesJournal of Applied Fluid Mechanics
Regarding the airfoil optimization design of multi-rotor unmanned aerial vehicles, this paper proposes an integral airfoil design method based on upper airfoil contour optimization. Firstly, by designing concave descent input curves with 0-1 distribution,
Z. Wang   +4 more
doaj   +1 more source

Using genetic algorithms to optimize airfoils in incompressible regime [PDF]

open access: yesINCAS Bulletin, 2019
Aerodynamic optimization is a very actual problem in aircraft design and airfoils are basic two-dimensional shape forming cross sections of wings. Traditionally, the airfoil geometry if defined by a very large number of coordinates. Nowadays, in order to
Adrian DINA   +3 more
doaj   +1 more source

CFD Analysis and Shape Optimization of Airfoils Using Class Shape Transformation and Genetic Algorithm—Part I

open access: yesApplied Sciences, 2021
This paper presents the parameterization and optimization of two well-known airfoils. The aerodynamic shape optimization investigation includes the subsonic (NREL S-821) and transonic airfoils (RAE-2822).
Md Tausif Akram, Man-Hoe Kim
doaj   +1 more source

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