Wind-Tunnel Tests on Airfoil Boundary Layer Control Using a Backward-Opening Slot (1932)
NASA Technical Reports Server (NTRS) · leaf 16
Change in minimum drag due to various slot Figure 20.—Change in minimum drag due to various slot openings and wing pressures. Slot at 53.9 per cent chord locations and wing pressures. Slot opening, 0.667 per cent from L. E. a = chord, a =—6* 20 10 •5 o t u ^-iO s -20 '30 0 20 40 60 80 100 L.E. Slot… … Slot location in % of chord due to slot opening. 0»approximately 1 form {Cd-^Cds) Figure 25.—Percentage increase in (C:>+CDfl) min. Figure 24.—Percentage mcreasem^^^q^^^y^ minimum. Slot at 53.9 per cent chord due to slot opening and slot location, 12 for Cl maximum, i Cp=» approximately^Oor…
NASA Technical Reports Server (NTRS)
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