Title :
Propagation of nonlinear acoustic signals through inhomogeneous moving media
Author :
Khokhlova, V.A. ; Averianov, M.V. ; Blanc-Benon, Ph ; Cleveland, R.O.
Author_Institution :
Dept. of Acoust., Lomonosov (M.V.) State Univ., Moscow, Russia
Abstract :
Nonlinear propagation of intense acoustic waves through inhomogeneous medium is an important problem for many modern applications including sonic booms in a turbulent atmosphere, explosive waves in a fluctuating ocean, and intense ultrasound and shock waves in biological tissue. In this work, a nonlinear parabolic wave equation with inclusion of scalar and vectorial inhomogeneities is presented. Results are presented in the case of the initially harmonic wave propagation through a 2D random velocity field.
Keywords :
acoustic wave diffraction; acoustic wave propagation; inhomogeneous media; nonlinear acoustics; nonlinear equations; parabolic equations; 2D random velocity field; biological tissue shock waves; biological tissue ultrasound; diffraction; fluctuating ocean explosive waves; harmonic wave propagation; inhomogeneous moving media; intense acoustic waves; nonlinear acoustic signal propagation; nonlinear parabolic wave equation; scalar inhomogeneities; turbulent atmosphere sonic booms; vectorial inhomogeneities; Acoustic propagation; Acoustic waves; Atmosphere; Biological tissues; Explosives; Nonhomogeneous media; Nonlinear acoustics; Oceans; Shock waves; Ultrasonic imaging;
Conference_Titel :
Ultrasonics Symposium, 2004 IEEE
Print_ISBN :
0-7803-8412-1
DOI :
10.1109/ULTSYM.2004.1417780
