WEAKLY NONLINEAR PROPAGATION OF A PULSED SOUND BEAM

被引：5

作者：

FROYSA, KE ^{[1
]}

机构：

[1] UNIV BERGEN,DEPT MATH,N-5007 BERGEN,NORWAY

来源：

JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA | 1994年 / 95卷 / 01期

关键词：

D O I：

10.1121/1.408369

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

The weakly nonlinear propagation of a pulsed sound beam generated by a real sound source in a homogeneous fluid is considered. The investigation is based on the weakly nonlinear approximation of the Khokhlov-Zabolotskaya-Kuznetsov nonlinear parabolic equation. It is discussed how diffraction and absorption alter the pulse. Analytical and numerical solutions are presented, and the validity of older models on the self-demodulation of a pulsed signal is discussed.

引用

页码：123 / 130

页数：8

共 24 条

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