Applications of Modern Hydrodynamics to Aeronautics. [in Two Parts (1923)
NASA Technical Reports Server (NTRS) · leaf 20
178 REPORT NATIONAL ADVISORY COMMITTEE FOR AERONAUTICS. We must now discuss the transformation of this flow to a wing profile. For this purpose manifold means are possible. The simplest is furnished by a transformation according to the equation 6s z=x+%y= By this the circle of diameter AB=2b in the… … FIO. 23. FlO. 22. b*. Conforms! transformation of z plane Into t plane by z=t+-j trie circles around the former become ellipses, the radii become hyperbolas. All the ellipses and hyperbolas hare their foci at the ends of the straight line, this forming a confocal system. Figures 22 and 23…
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