The acoustic field of a high-frequency source moving in a waveguide

被引：0

作者：

Buldyrev V.S.

Sokolov A.V.

Starkov A.S.

机构：

来源：

Journal of Mathematical Sciences | 1999年 / 96卷 / 4期

基金：

俄罗斯基础研究基金会;

关键词：

Coordinate System; Wave Field; Acoustic Field; Doppler Frequency; Waveguide Mode;

D O I：

10.1007/BF02172808

中图分类号：

学科分类号：

摘要：

The acoustic field of a source moving at a subsonic velocity in o regular waveguide with perfectly reflecting boundaries is considered. The acceleration of the source is assumed to be small. In a moving coordinate system, the asymptotics of the wave field is obtained. This asymptotics is inapplicable near the critical cross sections, for which the Doppler frequency of the source coincides with the frequency of the waveguide mode under consideration. It is demonstrated that, in this case, the wave field can be represented locally by a special type of integral, which is analyzed by the saddle-point method. Bibliography: 6 titles. © 1999 Kluwer Academic/Plenum Publishers.

引用

页码：3327 / 3331

页数：4

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