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Volume 112, Issue 5, November 2002
- ACOUSTICAL MEASUREMENTS AND INSTRUMENTATION 
112(2002); http://dx.doi.org/10.1121/1.1506690View Description Hide Description
In this paper, the authors describe an innovative jet engine noisemeasurement and prediction tool. The tool measuressound-pressure levels and frequency spectra in the far field. In addition, the tool provides predicted results while the measurements are being made. The predictions are based on an existing computational fluid dynamicsdatabase coupled to an empirical acoustic radiation model based on the far-field approximation to the Lighthill acoustic analogy. Preliminary tests of this acoustic measurement and prediction tool produced very encouraging results.