The interdependence of profile drag and lift with Joukowski type and related airfoils (1935)
NASA Technical Reports Server (NTRS) · leaf 18
N.A.C.A. Technical Memorandum No. 768 Tigs. 11,12,13,14,15 Forward »tagnation point (f-QiO Forward stagnation Figure 13.- Position of forward stagnation points for minimum profile drag on the Figure 12.- Representation of travel of "generating circles" and on the forward stagnation points Joukowsky… … of figs. 13 Figure 14.- Position of forward and 14 stagnation points for versus f/l. minimum profile drag on the "generating circles" and on the Joukowsky airfoils themselves (f/l » 0.2). o-to
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