Aerodynamic Performance of 0.5-meter-diameter, 337-meter-per-second Tip Speed, 1.5-pressure-ratio, Single-stage Fan Designed for Low Noise Aircraft Engines

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National Aeronautics and Space Administration, 1974 - Aerodynamic load - 181 pages
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Overall and blade-element aerodynamic performance of a 0.271-scale model of QF-1 are presented, examined, and then compared and evaluated with that from similar low noise fan stage designs. The tests cover a wide range of speeds and weight flows along with variations in stator setting angle and stator axial spacing from the rotor. At design speed with stator at design setting angle and a fixed distance between stage measuring stations, there were no significant effects of increasing the axial spacing between rotor stator from 1.0 to 3.5 rotor chords on stage overall pressure ratio, efficiency or stall margin.

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Contents

INTRODUCTION
1
RESULTS AND DISCUSSION
8
SUMMARY OF RESULTS
22

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