The sound field of a rotor in a stationapy duct

被引：6

作者：

Carley, M ^{[1
]}

机构：

[1] Univ Bath, Dept Mech Engn, Bath BA2 7AY, Avon, England

来源：

JOURNAL OF SOUND AND VIBRATION | 2003年 / 259卷 / 05期

关键词：

D O I：

10.1006/jsvi.2002.5131

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

A method is developed for the prediction of noise from rotors in an axisymmetric duct at rest. The technique combines a previously developed model for noise from disc sources with a boundary integral equation method for scattering from the duct surface. Recent developments in the theory of Gaussian quadrature and generalized elliptic integrals are used to simplify the implementation of the formulation. The sound field of a simplified model ducted rotor is then calculated and its structure examined in the framework of known features of the field around rotating sources. It is found that, as for an open rotor, the sonic radius plays an important role in the structure of the field. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：1067 / 1079

页数：13

共 30 条

[1] Generalized elliptic-type integrals and asymptotic formulas [J].

Al-Zamel, A ;

Tuan, VK ;

Kalla, SL .

APPLIED MATHEMATICS AND COMPUTATION, 2000, 114 (01) :13-25

[2]

Bjorkberg J., 1987, Canadian Journal of Physics, V65, P723, DOI 10.1139/p87-106

[3] APPLICATION OF INTEGRAL EQUATION METHODS TO NUMERICAL SOLUTION OF SOME EXTERIOR BOUNDARY-VALUE PROBLEMS [J].

BURTON, AJ ;

MILLER, GF .

PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1971, 323 (1553) :201-&

[4] Sound radiation from propellers in forward flight [J].

Carley, M .

JOURNAL OF SOUND AND VIBRATION, 1999, 225 (02) :353-374

[5] Propeller noise fields [J].

Carley, M .

JOURNAL OF SOUND AND VIBRATION, 2000, 233 (02) :255-277

[6] THE STRUCTURE OF ROTATING SOUND FIELDS [J].

CHAPMAN, CJ .

PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 1993, 440 (1909) :257-271

[7] ON THE SINGULARITY OF THE AXIALLY-SYMMETRICAL GREEN,HELMHOLTZ FUNCTION, WITH APPLICATION TO BEM [J].

DAWSON, TW .

APPLIED MATHEMATICAL MODELLING, 1995, 19 (10) :590-600

[8] The application of a boundary integral equation method to the prediction of ducted fan engine noise [J].

Dunn, MH ;

Tweed, J ;

Farassat, F .

JOURNAL OF SOUND AND VIBRATION, 1999, 227 (05) :1019-1048

[9]

DUNN MH, 1996, 2 AIAA CEAS AER C

[10] EVALUATION OF A GENERALIZED ELLIPTIC-TYPE INTEGRAL [J].

EPSTEIN, LF ;

HUBBELL, JH .

JOURNAL OF RESEARCH OF THE NATIONAL BUREAU OF STANDARDS SECTION B-MATHEMATICAL SCIENCES, 1963, 67 (01) :1-17

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