United States. National Advisory Committee for Aeronautics, United States. National Aeronautics and Space Administration · Washington : G.P.O. · leaf 95
the same. EFFICIENCY OF THE WIND TUNNEL. The question of efficiency of the wind tunnel is one which was made the subject of muchpreliminary study. By efficiency is understood the ratio of kinetic energy of the air stream atthe throat of the tunnel minus the energy absorbed by the fan, all divided… … §I ma 1600 /500 mo 1300 /zoo• //oo 1000900000700600500400JOO200WO / f // f^ / i h / ,\ / / f // ■fr / 7 / % PS/ffO/fAf/tA/CS OF f f^ccuun t/tLUV£NWH/ W/A/O TOA/A/fL / 7 +-0- Afo /nfahe sAro/ghf- eners;no modelmroo/ -sh/e/ds /np/ot:e. /nAake sfraiffhAeners, - ffirooAshie/dinp/oce. J r / / A- /nfoke…
Aeronautics
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