узнать у др. Сорокадума, - давал ли он профессору Платцеру расчеты по машущему полету, которые можно прочесть у др. Jones по приведенной мной (выше - пост # 1431) ссылке?
More recently, Sorokodum [12] performed measurements where he generated a wavy fl ow by
means of a sinusoidally pitching wing (NACA 0015, chord of 0.2 m, span of 0.37 m) in front of a
stationary wing held at zero incidence (NACA 0015, chord of 1 m, span of 0.37 m). The distance
between the oscillating and the stationary wing was 0.45 m. The experiments were made in a water
fl ow of 2.7 m/s. The amplitude of the pitching wing varied from 40° at low Strouhal numbers to
20° at Strouhal numbers of 0.5 and decreasing further to 9° at the highest Strouhal number tested.
The results are shown in Fig. 5.
[12] Sorokodum, E.D., Experimental Research of a Wave Flow Wing, Unpublished Report,
Sevastopol: USSR, 1988.
Figure 5: Drag/thrust coeffi cient Cx vs. Strouhal number St [12].
The results show the rapid decrease in drag from the steady fl ow value at
St = 0, f = 0, to a net thrust at Strouhal numbers from St = 0.7 to 2.0, corresponding to frequencies of
f = 0.6–5 Hz.
-только столько из Сорокодума,остальная часть статьи=исторические данные!
http://www.vortexosc.com/images/pdf/sorokodum24.pdf
http://www.vortexosc.com/modules.php?name=Content&pa=showpage&pid=125&page=2
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