Comparison of transition locations for an open-nose cone, a conven¬tional sharp cone, and a hollow cylinder showed that transition locations on the open-nose cone and the hollow cylinder were identical but differed greatly from those on the sharp cone. This is believed to be caused by the essentially two-dimensional character of the boundary layer at the leading edge of the open-nose cone.nBluntness effects on the open-nose cone were quite similar to those observed on the hollow cylinder. Transition was displaced downstream 2.2 times the sharp-cone transition distance by blunting the tip.
展开▼
