Authors:
Andrei V. Popov
1
;
Lucian T. Grigorie
1
;
Ruxandra Botez
1
;
Mahmood Mamou
2
and
Youssef Mébarki
2
Affiliations:
1
École de Technologie Supérieure, Canada
;
2
Institute for Aerospace Research, NRC, Canada
Keyword(s):
Morphing Wing, Real Time Optimization, Wind Tunnel, Laminar-to-turbulence Transition.
Related
Ontology
Subjects/Areas/Topics:
Informatics in Control, Automation and Robotics
;
Intelligent Control Systems and Optimization
;
Optimization Algorithms
Abstract:
In this paper, wind tunnel results of a real time optimization of a morphing wing in wind tunnel for delaying the transition towards the trailing edge are presented. A morphing rectangular finite aspect ratio wing, having a wind tunnel experimental airfoil reference cross-section, was considered with its upper surface made of a flexible composite material and instrumented with Kulite pressure sensors, and two smart memory alloys actuators. Several wind tunnel tests runs for various Mach numbers, angles of attack and Reynolds numbers were performed in the 6’×9’ wind tunnel at the Institute for Aerospace Research at the National Research Council Canada. Unsteady pressure signals were recorded and used as feed back in real time control while the morphing wing was requested to reproduce various optimized airfoils by changing automatically the two actuators strokes. The paper shows the optimization method implemented into the control software code that allows the morphing wing to adjust
its shape to an optimum configuration under the wind tunnel airflow conditions.
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