Formulation of an acoustic wave operator based on linearized Euler equations

被引：5

作者：

Gréverie, L ^{[1
]}

Bailly, C ^{[1
]}

机构：

[1] Ecole Cent Lyon, Ctr Acoust, UMR CNRS 5509, F-69131 Ecully, France

来源：

COMPTES RENDUS DE L ACADEMIE DES SCIENCES SERIE II FASCICULE B-MECANIQUE PHYSIQUE ASTRONOMIE | 1998年 / 326卷 / 11期

关键词：

aeroacoustics; Euler equations; refraction; jet noise; numerical;

D O I：

10.1016/S1251-8069(98)80008-0

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：

Linearized Euler equations based on a stationary mean flow are used to calculate the propagation of acoustic waves. This method allows one to take into account the mean flow effects on the radiated sound field. The multipolar feature of a source clearly appears in the wave equation. It is shown that these sources are numerically identified in solving directly the linearized Euler equations. The case of a quadrupolar distribution in a jet flow is then investigated. (C) Academie des Sciences/Elsevier, Paris.

引用

页码：741 / 746

页数：6

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