Gents;
We are all on the same sheet of music here regarding Gurney flaps. But I had a thought regarding the shape as viewed from the end. The typical application is a piece of right angle aluminum extrusion with varying leg dimensions of say, 0.5” x 0.75” for canards, winglets, and rear wing elements, and 0.75” x 0.75” for the diffuser.
But what about a bent 6061-T6 lip that will require a substantial bend radius. The angle will be up to 90 degrees (perhaps samples starting at 45 degrees and working up to 90 to experiment), but the laminar transition over a smooth bend to say, 90 degrees as opposed to an abrupt 90 degree angle my be more aerodynamically efficient.
Thoughts?