01.2 - Aircraft Design and Integrated System (Applications)
AN INVESTIGATION ON THE IMPROVEMENT FOR TANDEM WING PITCHING MOMENT CHARACTERISTICS
X. Wang¹, T. Ma, Institude of Unmanned System, Beihang University, China; N. Qiao¹, J. Fu, SchoolofTransportationScienceandEngineering, Beihang University, China; ¹School of Aeronautic Science and Engineering, Beihang University, China
Our investigation concentrates on changing the flow interaction of tandem wing. The conclusion is the wingtip vortex of the front-wing and the spanwise flow of the rear-wing are the critical reasons causing the undesired pitching-moment of a tandem wing. Optimizing the front-wing wingtips improves the nonlinear pitching-moment, moreover, a better rear-wing aerodynamic performance is accompanied.