Wind-Tunnel Tests on Airfoil Boundary Layer Control Using a Backward-Opening Slot (1932)
NASA Technical Reports Server (NTRS) · leaf 6
ured at the upper end (8.09 in.). of the tube; the lower end was supported on a pivot. 5. Slot location 72.6 per cent of chord from L. E. The air duct was led in to the open end of the hollow (10.90 in.). airfoil through the mercury seal. For each slot location four openings of slot were The air… … Figure 2.—N, A. C. A. 84-M airfoil with part of upper surface removed and slot at 53.9 per cent of chord 2. Slot opening 0.333 per cent of chord (0.050 in.). manometer, which was connected to a perforated tube, 3. vSlot opening 0.500 per cent of chord (0.75 in.). which extended the full span inside…
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