Low Pressure Ratio Fan Noise Experiment and Theory
- 1 January 1973
- journal article
- Published by ASME International in Journal of Engineering for Power
- Vol. 95 (1) , 19-26
- https://doi.org/10.1115/1.3445689
Abstract
The Q-FAN™, a new low pressure ratio, low noise propulsor, is currently under intensive development. Since the operating regime of the Q-FAN differs from that of the turbofan, the dominant noise sources also differ. This paper includes a summary of the results of extensive noise tests on a Q-FAN model, a discussion of the sources of various components of measured fan noise, and the results of analytical studies using a new theory to define minimum noise fan configurations.Keywords
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