Low speed maximum lift and flow control

In this paper recent advances at NLR on low speed maximum lift and flow control research are reported. These three-dimensional high-lift flow studies focused on the complex flow phenomena occurring near maximum lift, the influence of geometrical complexity and Reynolds number and the effect of a Free Flying Delta Array flow control device on the high-lift system performance. The potential benefits of the Free Flying Delta Array flow control device for cost effective low speed performance are quantified, based on results obtained by Computational Fluids Dynamics simulations.