Aerodynamic optimization and mechanism design of flexible variable camber trailing-edge flap
TLDR
In this article, a flexible variable camber trailing-edge flap is introduced, capable of changing its shape smoothly from 50% flap chord to the rear of the flap, which can improve flight efficiency during takeoff, cruise and landing states.About:
This article is published in Chinese Journal of Aeronautics.The article was published on 2017-06-01 and is currently open access. It has received 41 citations till now. The article focuses on the topics: Takeoff & Angle of attack.read more
Citations
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Journal ArticleDOI
Delaying stall of morphing wing by periodic trailing-edge deflection
TL;DR: In this paper, the effects of the angle of attack and deflection rate on aerodynamic characteristics of the morphing wing were examined, and a method was developed to delay stall by using the flexible periodic trailing-edge deflection.
Journal ArticleDOI
Multi-infill strategy for kriging models used in variable fidelity optimization
TL;DR: The developed approach has a promising application to efficient aerodynamic design when high-fidelity analyses are involved and faster reduction of an aerodynamic function is achieved, when compared to ordinary kriging using the multi-infill strategy and variable-f fidelity model using single infill criterion.
Posted Content
Non intrusive method for parametric model order reduction using a bi-calibrated interpolation on the Grassmann manifold
Mourad Oulghelou,Cyrille Allery +1 more
TL;DR: In this article, the authors propose a nonintrusive reduced order modeling method which is independent of the governing equations, which is called Bi-CITSGM (Bi-Calibrated ITSGM).
Journal ArticleDOI
Numerical study of a supercritical airfoil/wing with variable-camber technology
TL;DR: An optimization strategy for airfoil that incorporates variable-camber technology is proposed and results demonstrate that the proposed method can obtain better results than the traditional segregated shape optimization.
Journal ArticleDOI
Non intrusive method for parametric model order reduction using a bi-calibrated interpolation on the Grassmann manifold
Mourad Oulghelou,Cyrille Allery +1 more
TL;DR: Results on the flow problem past a circular cylinder where the parameter of interpolation is the Reynolds number, show that for new untrained Reynolds number values, the developed approach produces satisfyingly accurate solutions in a real computational time.
References
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Proceedings ArticleDOI
A Mission-Adaptive Variable Camber Flap Control System to Optimize High Lift and Cruise Lift-to-Drag Ratios of Future N+3 Transport Aircraft
TL;DR: The VCCTEF program is developing better lift and drag performance of flexible wing transports with the further benefits of lighter-weight actuation and less drag using the variable camber shape of the flap.
Proceedings ArticleDOI
Flowfield measurements about a multi-element airfoil at high Reynolds numbers
TL;DR: In this article, the effects of variations in Reynolds number and flap gap on airfoil performance and flowfield survey data are presented, including surface static-pressure distributions (integrated to obtain lift), drag data obtained with wake-rake surveys, and fbwfield surveys obtained with a flat-tube and five-hole probe at nine stations on the configuration's upper surface.
Journal ArticleDOI
Development of Variable Camber Morphing Airfoil Using Corrugated Structure
TL;DR: In this paper, the authors describe the development and the wind tunnel test of a variable geometry morphing airfoil using corrugated structures, which is verified by finite element analysis, and a prototype is manufactured using carbon fiber reinforced plastics.
Proceedings ArticleDOI
Variable Camber Compliant Wing - Design
TL;DR: The design process and design validation of the US Air Force Research Laboratory developed Variable Camber Compliant Wing is described, demonstrating a new capability and technology for an active wing camber change without discrete control surfaces under realistic aerodynamic conditions.
Proceedings ArticleDOI
Experimental Investigation of a Flexible Wing with a Variable Camber Continuous Trailing Edge Flap Design
Nhan T. Nguyen,Nathan Precup,James Urnes,Chester P. Nelson,Sonia Lebofsky,Eric B. Ting,Eli Livne +6 more
TL;DR: In this paper, a flexible wing wind tunnel model with a variable camber continuous trailing edge flap (VCCTEF) design for drag minimization, tested at the University of Washington Aeronautical Labo- ratory (UWAL), is presented.