Results 21 to 30 of about 3,820 (224)

Study on design of low Reynolds number reflexed airfoil for solar-powered UAV in flying wing configuration

open access: yesXibei Gongye Daxue Xuebao, 2022
Based on the application requirements of a small hand-launched solar-powered unmanned aerial vehicle (UAV) in flying wing configuration, the optimization design of the low Reynolds number (LRN) reflexed airfoil is carried out in this study to meet ...
WANG Kelei, ZHOU Zhou, GUO Jiahao, XU De
doaj   +1 more source

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

A novel shape optimization method using knot insertion algorithm in B-spline and its application to transonic airfoil design [PDF]

open access: yes, 2011
A new method using the cubic B-spline curves with nominal uniform knot set to parameterize the geometry is proposed to deal with shape optimization problems.
Xu, B.   +3 more
core   +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

Airfoil design via cubic splines - Ferguson's curves revisited [PDF]

open access: yes, 2007
Few aerospace design topics have had so many pages devoted to them as airfoil parameterization. Claims of novelty must therefore be made with caution in this area, so we declare our starting point simply as a fresh perspective on legacy techniques ...
Andy Keane   +3 more
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

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

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

Home - About - Disclaimer - Privacy