ORIGINAL: BMatthews
... A sharp leading edge creates a lot of turbulent flow and it may be helping your model by controlling and stabilizing this vortex flow ...
...The "problem" is that delta wings just do not work the same at higher angles as "normal" wings. The vortex flow becomes dominant. ...
Are you saying that, because my model is a delta, the sharp leading edge may help stability at a high angle of attack? I would like a balance of high and slow speed handling with low resistance for top end. A rounded leading edge would be just as easy but thought I may be giving up speed with out a good reason.
Why is it a "problem" that the vortex flow becomes dominant?
Thanks for your input