Results 21 to 30 of about 2,398,909 (125)

Comparative Aerodynamic Performance Analysis of Camber Morphing and Conventional Airfoils

Applied Sciences, 2021
This paper aims to numerically validate the aerodynamic performance and benefits of variable camber rate morphing wings, by comparing them to conventional ones with plain flaps, when deflection angles vary, assessing their D reduction or L/D improvement.
Tuba Majid, Bruce W. Jo
doaj   +1 more source

Real-Time Performance Optimization for a Camber Morphing Wing Based on Domain Incremental Model under Concept Drifting

Aerospace, 2023
Compared with traditional wings equipped with conventional control surfaces, variable-camber morphing wings have become a hot research topic in the field of aviation due to their ability to maintain a smooth and continuous overall shape while ensuring ...
Sijia Jia, Zhenkai Zhang, Qi Dang, Chen Song, Chao Yang   +4 more
doaj   +1 more source

A skin design method of variable camber wing trailing edge

Xibei Gongye Daxue Xuebao, 2023
As an important part of the wing, the skin deformation accuracy directly affect the aerodynamic performance of the aircraft in different environments.
ZHANG Yonghong, TANG Shuangquan, WANG Miao, WANG Chengmin, GE Wenjie   +4 more
doaj   +1 more source

Influence of the camber trailing-edge wings on the motion performance of underwater gliders

International Journal of Naval Architecture and Ocean Engineering, 2022
Wings are the main source of lift for Underwater Gliders (UGs) and play a decisive role in their motion performance. The wings of UGs are generally rectangular and symmetrical airfoils.
Yuhong Liu, Shixun Xu, Shan Tian, Shiquan Lan, Shihan Deng, Shuhe Liu, Dengxue Feng   +6 more
doaj   +1 more source

Theoretical Stiffness Modeling and Application Research of a Novel Stacked Flexure Hinge

Aerospace, 2023
This study investigates and designs a novel stacked hinge with low stiffness, large rotation angle, high strength, and length-adaptive functionality. Firstly, based on the large deformation theory of cantilever beams and relevant theories of leaf springs,
Yonghong Zhang, Chengmin Wang, Shuangquan Tang, You Jiang, Hong Chen, Wenjie Ge   +5 more
doaj   +1 more source

Suppression of stall on high-camber flap using upper-surface blowing [PDF]

, 2011
For many years, high-lift devices of an aeroplane have been employed to enhancing the aerodynamic performance of the wing during take-off and landing. But their complex geometries not only increase the design and manufacture cost, but also result in ...
Fang, Li
core   +7 more sources

Integrated Design of a Morphing Winglet for Active Load Control and Alleviation of Turboprop Regional Aircraft

Applied Sciences, 2021
Aircraft winglets are well-established devices that improve aircraft fuel efficiency by enabling a higher lift over drag ratios and lower induced drag. Retrofitting winglets to existing aircraft also increases aircraft payload/range by the same order of ...
Ignazio Dimino, Giovanni Andreutti, Frédéric Moens, Federico Fonte, Rosario Pecora, Antonio Concilio   +5 more
doaj   +1 more source

Design and Shape Monitoring of a Morphing Wing Trailing Edge

Aerospace, 2023
The morphing wing trailing edge is an attractive aviation structure due to its shape-adaptive ability, which can effectively improve the aerodynamic performance of an aircraft throughout the whole flight.
Xintong Shi, Yu Yang, Zhigang Wang, Sheng Zhang, Xiasheng Sun, Wei Feng   +5 more
doaj   +1 more source

An unusual titanosaur axis from the Upper Cretaceous of Brazil and its significance for sauropod anatomy and systematics

The Anatomical Record, EarlyView.
Abstract The Upper Cretaceous São José do Rio Preto Formation (Bauru Group, southeastern Brazil) has yielded a fragmentary but taxonomically diverse record of titanosaur sauropods, although elements from cervical series remain scarce. Here, we describe a nearly complete sauropod axis from the Vila Ventura Paleontological Area, representing an uncommon ...
Bruno A. Navarro, Jeffrey A. Wilson Mantilla, Jhonata H. A. Martins, Fabiano V. Iori, Leonardo S. Paschoa, Alberto B. Carvalho, Joseli M. Piranha, Hussam Zaher   +7 more
wiley   +1 more source

Effects of Camber of S‐Series Airfoils on Aerodynamic Performance, Entropy Generation Rate, Irreversibility, and Second Law Efficiency of Horizontal Axis Wind Turbines

Energy Science &Engineering, EarlyView.
Due to the depletion of fossil fuels, enhancing wind turbine efficiency is crucial. Utilizing airfoils with high lift‐to‐drag ratios significantly improves power generation by optimizing aerodynamic parameters. Furthermore, entropy generation analysis serves as an effective method for design optimization by minimizing energy losses and exergy ...
Mitra Yadegari
wiley   +1 more source