Effect of Turbulence in Wind-Tunnel Measurements (1931)
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21 EFFECT OF TURBULENCE IN WIND TUNNEL MEASUREMENTS … .014 '° 0 20 40 60~ 80 100 (20 U0, ft/sec. Figure 25— Comparison of computed and observed drag coefficients on N. P. L. short model Curves (J , 4H-foot tunnel, upstream section, Rh for transition assumed=1,250. Curves K , 4^-foot tunnel, working section, Rh for transition assumed=2,000. Curves D,…
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