Effect of Turbulence in Wind-Tunnel Measurements (1931)
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6 2.0 2.4 ary layer is equal to 1,500, 2,000, 2,500, 3,000, and Figure L4.—and (-^yJ-3 V« for N. P. L. long model. «a is Reynolds 3,500 we find x from Figure 14 and compute the curves Number of boundary layer at a distance x from the nose, R is the Rey- shown in Figure 15. The computations for R5… … Reyno/ds Number, H Figure 15.—Computed drag coefficients for N. P. L. long model for flow changing from laminar to eddying under different conditions. Upper line is for eddying flow throughout, lower line for laminar flow throughout. The dotted lines are for transition at the indicated distances…
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