A jet engine noise measurement and prediction tool

被引：9
|
作者：
Frendi, A [1 ]
Dorland, WD
Maung, T
Nesman, T
Wang, TS
机构：
[1] Univ Alabama, Dept Mech & Aerosp Engn, Huntsville, AL 35899 USA
[2] AI Signal Res Inc, Huntsville, AL 35805 USA
[3] NASA, George C Marshall Space Flight Ctr, Huntsville, AL 35812 USA
来源：
JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA | 2002年 / 112卷 / 05期
关键词：
D O I：
10.1121/1.1506690
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
In this paper, the authors describe an innovative jet engine noise measurement and prediction tool. The tool measures sound-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 dynamics database 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. (C) 2002 Acoustical Society of America.
引用
收藏
页码：2036 / 2042
页数：7
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