| 摘要 |
<p>An aerodynamic profile (2) with a fixed external contour whose upper and lower generatrices have more than one extremum, said generatrices being formed by step-by-step superposition of classical profiles (1, 4, 5), (1, 6, 7) offset by chord, height and incidence angle. The intersection contours of the superposed profiles are interconnected by conjugating lines and the extrema on the upper and lower generatrices are located at the section between 0 and 50 % of the chord.</p> |
