Results 21 to 30 of about 1,076 (183)

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

Designs, 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, Simon Longtin-Martel, Ruxandra Mihaela Botez, Tony Wong   +3 more
doaj   +1 more source

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

Journal 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

Aerospace, 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]

Journal 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, Y. Zhu, Q. Yuan, W. B. Gu, X. B. Xie   +4 more
doaj   +1 more source

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

INCAS 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, Sterian DANAILA, Mihai-Victor PRICOP, Ionut BUNESCU   +3 more
doaj   +1 more source

DESIGN OPTIMIZATION OF TRANSONIC AIRFOILS [PDF]

Engineering Optimization, 1993
Numerical optimization procedures have been considered for the design of airfoils in transonic flow based on the transonic small-disturbance (TSD) and Euler equations. A sequential approximation optimization technique was implemented with an accurate approximation of the wave drag based on Nixon's coordinate straining approach.
C.-Y. JOH, B. GROSSMAN, R.T. HAFTKA
openaire   +1 more source

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

Applied 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

Multi-objective optimization of printed circuit heat exchanger with airfoil fins based on the improved PSO-BP neural network and the NSGA-II algorithm

Nuclear Engineering and Technology, 2023
The printed circuit heat exchanger (PCHE) with airfoil fins has the benefits of high compactness, high efficiency and superior heat transfer performance.
Jiabing Wang, Linlang Zeng, Kun Yang
doaj   +1 more source

Airfoil Optimization of Tiltrotor Aircraft Forward Flight Mode Based on Isight

Hangkong gongcheng jinzhan, 2019
As one of the main development trends of the next generation rotor-crafts, it is of important significance to study the aerodynamic optimization design of its wings for improving the flight performance of tiltrotor aircraft.NACA2412 is employed as the ...
Zhao Guang, He Guoyi, Wang Qi, Luo Yun, Wang Zhen   +4 more
doaj   +1 more source

Research on Aerodynamic Optimization Design of High Lift Airfoil Based on Deep Learning and MOEA/D

Taiyuan Ligong Daxue xuebao
Purposes Aiming at the performance conflict between optimization parameters in prior optimization method, a hybrid optimization model based on MOEA/D is proposed, which integrates CNN and genetic algorithm into MOEA/D framework to balance the correlation
SHEN Yongqiang, WANG Han, XIANG Jixin, LI Zhiqiang   +3 more
doaj   +1 more source