United States. National Advisory Committee for Aeronautics, United States. National Aeronautics and Space Administration · Washington : G.P.O. · leaf 516
d the maximum variation was ± 7 per cent,and the variation in direction was ±5°. Although this diffuserhas very little effect on the efficiency of the tunnel, at the same time it does not much improve thesteadiness of flow. A third diffuser was constructed as shown in Fig. 16 and placed in the… … ♦ • /I -/6mm. SECT/ON or o/rrus€R. Fig./6. 478 ANNUAL REPORT NATIONAL ADVISORY COMMriTEK F()l{ AERONAUTICS. improvement over the open room. It seems strange that these diffusers did not improve theair flow more, as the British liave found that diffiiscM-s (^r(uitly impj-ov^ tlie flow in tlic.ir…
Aeronautics
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