Results 11 to 20 of about 43,130 (185)

Study on Multimodality in Aerodynamic Airfoil Optimization Design

Hangkong 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, Bai Junqiang, Chang Min, Zhang Yu   +3 more
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

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

Xibei 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

Parameter-Based Design and Analysis of Wind Turbine Airfoils with Conformal Slot Co-Flow Jet [PDF]

Journal of Applied Fluid Mechanics, 2022
A co-flow jet (CFJ), an active flow control method combining blowing and suction control, can effectively suppress the stall of airfoils. However, the streamwise jet channel along the upper surface of a conventional CFJ airfoil reduces the thickness and ...
C. Y. Ma, H. Y. Xu
doaj   +1 more source

Optimization of structural parameters and thermal-hydraulic numerical simulation of printed circuit heat exchanger with airfoil fins

He jishu, 2021
BackgroundPrinted circuit heat exchanger (PCHE) with airfoil fins is a new type of microchannel heat exchanger with high efficiency and compactness, which has the advantages of high-temperature and high-pressure resistance.
LIU Chen, LI Qiming, ZOU Yang, XU Hongjie   +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 Implementation of Self-Organizing Maps for Airfoil Design Exploration via Multi-Objective Optimization Technique

Journal of Aerospace Technology and Management, 2016
Design candidates obtained from optimization techniques may have meaningful information, which provides not only the best solution, but also a relationship between object functions and design variables.
SungKi Jung, Won Choi, Luiz S. Martins-Filho, Fernando Madeira   +3 more
doaj   +3 more sources

Enhanced Aerodynamic Characteristics using Higher Order Curved Convex and Concave Meshing for an Incompressible Flow Analysis over NACA Airfoil [PDF]

Journal of Applied and Computational Mechanics
The present research work focuses on accurate aerodynamic computation and flow investigations of NACA 4-digit airfoil design to enhance the lift performance and consequently improve the efficient usage of fuel for commercial purposes of an aerodynamic ...
Supriya Devi, K.V. Nagaraja, Betti Bolló   +2 more
doaj   +1 more source

Experiment / simulation integrated shape optimization using variable fidelity Kriging model approach

Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2017
An attempt of experiment / simulation integrated design optimization is performed for the blade airfoil shape of a vertical axis wind turbine. A variable fidelity Kriging surrogate model approach is utilized in this integrated design optimization, in ...
Wataru YAMAZAKI
doaj   +1 more source

Parametric research and aerodynamic performance analysis of wind turbine airfoil with added flap

AIP Advances, 2022
A self-popped up flap is added to the airfoil (S809) suction surface to improve aerodynamic performance under large angle of attack (AOA) inspired by the slightly popped up feathers on the trailing edge of a bird’s wing. The response surface methodology (
Qimin Ma, Jiahao Wang, Yang Zhang, Xiaomin Liu   +3 more
doaj   +1 more source