Theoretical and numerical investigations of the acoustic field excited by submarine explosion

被引：2

作者：

Tang Li-Guo ^{[1
]}

Xu Xiao-Mei

Liu Sheng-Xing

机构：

[1] Xiamen Univ, Dept Oceanog, Xiamen 361005, Peoples R China

来源：

ACTA PHYSICA SINICA | 2008年 / 57卷 / 07期

关键词：

submarine explosion; acoustic field; dispersion; transient acoustic pressure;

D O I：

10.7498/aps.57.4251

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

This paper simulates and analyzes numerically the dispersion characteristics of the waves propagating in the shallow-ocean overlying a semi-infinite elastic solid. The analytical solution of the acoustic field in the shallow-ocean, excited by an explosive point source in the solid bottom, is derived by using the theories for sound propagation in liquid and solid. The time-domain waveforms of transient acoustic field are simulated with the above analytical solution. The dispersion characteristics of the transient acoustic field are analyzed by using the smoothed pseudo Wigner-Ville distribution.

引用

页码：4251 / 4257

页数：7