Real Time Morphing Wing Optimization Validation Using Wind-Tunnel Tests

摘要

In this paper,wind-tunnel results of a real time optimization of amorphingwing in thewind tunnel for delaying thentransition toward the trailing edge are presented. A morphing rectangular finite aspect ratio wing, having a windntunnel experimental airfoil reference airfoil cross section, was considered, with its upper surface made of a flexiblencompositematerial and instrumented with Kulite pressure sensors and two smart memory alloys actuators. Severalnwind-tunnel test runs for various Mach numbers, angles of attack, and Reynolds numbers were performed in then60nu0001 90nwind tunnel at the Institute for Aerospace Research at the National Research Council Canada. Unsteadynpressure signals were recorded and used as feedback in real time control while the morphing wing was requested tonreproduce various optimized airfoils by changing automatically the two actuators’ strokes. This paper shows thenoptimizationmethod implemented into the control software code that allows themorphing wing to adjust its shape tonan optimum configuration under the wind-tunnel airflow conditions.