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    On INM's Use of Corrected Net Thrust for the Prediction of Jet Aircraft Noise (2011)
    In:  CASI
    Details
    Publication Date: 2019-07-12
    Description: The Federal Aviation Administration s (FAA) Integrated Noise Model (INM) employs a prediction methodology that relies on corrected net thrust as the sole correlating parameter between aircraft and engine operating states and aircraft noise. Thus aircraft noise measured for one set of atmospheric and aircraft operating conditions is assumed to be applicable to all other conditions as long as the corrected net thrust remains constant. This hypothesis is investigated under two primary assumptions: (1) the sound field generated by the aircraft is dominated by jet noise, and (2) the sound field generated by the jet flow is adequately described by Lighthill s theory of noise generated by turbulence.
    Keywords: Acoustics
    Type: NASA/TM-2011-217177 , L-20044 , NF1676L-13060
    Format: application/pdf
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