Results 11 to 20 of about 1,855 (186)

Airfoil Inverse Design Method Based on Two-layer POD and BPNN

open access: yesHangkong gongcheng jinzhan, 2021
It is computationally intensive and time-consuming to perform a large number of CFD simulations in the process of airfoil optimization.In this paper, an airfoil inverse design method is developed by using the proper orthogonal decomposition(POD) and back
LI Chunna, JIA Xuyi, GONG Chunlin
doaj   +1 more source

Design of advanced airfoil for stall-regulated wind turbines [PDF]

open access: yesWind Energy Science, 2017
Nowadays, all the modern megawatt-class wind turbines make use of pitch control to optimise the rotor performance and control the turbine. However, for kilowatt-range machines, stall-regulated solutions are still attractive and largely used for their ...
F. Grasso   +3 more
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

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

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

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

open access: yesJournal 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

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

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

open access: yesHe 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   +3 more
doaj   +1 more source

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

open access: yesJournal 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   +2 more
doaj   +1 more source

An Implementation of Self-Organizing Maps for Airfoil Design Exploration via Multi-Objective Optimization Technique

open access: yesJournal 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   +3 more
doaj   +3 more sources

Home - About - Disclaimer - Privacy