A time-domain method for prediction of noise radiated from supersonic rotating sources in a moving medium

被引：7

作者：

Huang, Zhongjie ^{[1
]}

Siozos-Rousoulis, Leonidas ^{[1
]}

De Troyer, Tim ^{[1
]}

Ghorbaniasl, Ghader ^{[1
,2
]}

机构：

[1] VUB, Pl Laan 2, B-1050 Brussels, Belgium

[2] Univ Tehran, Tehran, Iran

来源：

PROCEEDINGS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES | 2018年 / 474卷 / 2210期

关键词：

aeroacoustics; acoustic analogy; moving medium; supersonic rotating sources; PROPELLER NOISE; AEROACOUSTIC ANALYSIS; ACOUSTIC ANALOGY; FORMULATION; SURFACES; ROTORS; BLADES; SOUND; FIELD;

D O I：

10.1098/rspa.2017.0089

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

This paper presents a time-domain method for noise prediction of supersonic rotating sources in a moving medium. The proposed approach can be interpreted as an extensive time-domain solution for the convected permeable Ffowcs Williams and Hawkings equation, which is capable of avoiding the Doppler singularity. The solution requires special treatment for construction of the emission surface. The derived formula can explicitly and efficiently account for subsonic uniform constant flow effects on radiated noise. Implementation of the methodology is realized through the Isom thickness noise case and high-speed impulsive noise prediction from helicopter rotors.

引用

页数：19

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