Open AccessTheoretical and numerical investigations of the acoustic field excited by submarine explosion
Author(s) -
Tang Li-Guo,
Xiaomei Xu,
Shengxing Liu
Publication year - 2008
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.57.4251
Subject(s) - explosive material , dispersion (optics) , excited state , acoustics , mechanics , transient (computer programming) , point source , time domain , acoustic wave , acoustic dispersion , field (mathematics) , waveform , submarine , physics , geology , optics , computer science , oceanography , chemistry , mathematics , organic chemistry , quantum mechanics , voltage , pure mathematics , computer vision , operating system , nuclear physics
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.