Results 21 to 30 of about 3,197 (203)

Elastomer-based skins for morphing aircraft applications: Effect of biaxial strain rates and prestretch

open access: yesPolymer Testing, 2022
There is an emerging trend in the morphing aircraft research where two or more morphing degrees of freedom are used on a wing which leads to the concept of polymorphing.
Dilshad Ahmad   +2 more
doaj   +1 more source

Active Flow Control at Low Reynolds Numbers by Periodic Airfoil Morphing [PDF]

open access: yes, 2016
This paper investigates the application of a periodically deforming airfoil surface for the purpose of flow control at low Reynolds numbers. A physical model has been fabricated by bonding Macro Fiber Composite (MFC) actuators to the underside of a NACA ...
Debiasi, M   +3 more
core   +1 more source

Robust Algorithm Software for NACA 4-Digit Airfoil Shape Optimization Using the Adjoint Method

open access: yesApplied Sciences, 2023
Optimizing the aerodynamic shape of an airfoil is a critical concern in the aviation industry. The introduction of flexible airfoils has allowed the shape of the airfoil to vary, depending on the flight conditions. Therefore, in this study, we propose an
Naser Tanabi   +3 more
doaj   +1 more source

Study on Flow Mechanism of a Morphing Supercritical Airfoil

open access: yesShock and Vibration, 2021
In order to maintain the best performance in flight, a new concept, morphing aircraft, has been proposed, which can change the real-time aerodynamic characteristics under different flight conditions.
Yuanjing Wang   +4 more
doaj   +1 more source

Conceptual-level evaluation of a variable stiffness skin for a morphing wing leading edge [PDF]

open access: yes, 2019
A morphing leading edge produces a continuous aerodynamic surface that has no gaps between the moving and fixed parts. The continuous seamless shape has the potential to reduce drag, compared to conventional devices, such as slats that produce a discrete
Benini, E   +8 more
core   +1 more source

Development and evaluation of a morphing concept for NACA-63418 airfoil for improved wind energy conversion [PDF]

open access: yesE3S Web of Conferences
In areas with low winds, generating enough power from wind turbines is a challenging task. In such conditions, efficient conversion of wind kinetic energy is crucial.
Molale Tshepho B., Zang Bin, Ho Weihua
doaj   +1 more source

A High-Lift Optimization Methodology for the Design of Leading and Trailing Edges on Morphing Wings

open access: yesApplied Sciences, 2021
Morphing offers an attractive alternative compared to conventional hinged, multi-element high lift devices. In the present work, morphed shapes of a NACA 64A010 airfoil are optimized for maximum lift characteristics.
Charalampos Themistokleous   +5 more
doaj   +1 more source

Design Synthesis of Adaptive Mesoscopic Cellular Structures with Unit Truss Approach and Particle Swarm Optimization Algorithm [PDF]

open access: yes, 2006
Cellular material structures have been engineered at the mesoscopic scale for high performance and multifunctional capabilities. However, the design of adaptive cellular structures - structures with cellular configurations, sizes, and shapes designed ...
David W., Rosen   +2 more
core   +1 more source

Novel Approach of Airfoil Shape Representation Using Modified Finite Element Method for Morphing Trailing Edge

open access: yesMathematics, 2023
This study presents a novel approach to parameterize the geometry of a morphing trailing-edge flap that allows its aerodynamics to be optimized while capturing the expected structural behavior of the flap.
Martynas Lendraitis   +1 more
doaj   +1 more source

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