Two methods for calculating acoustic wave propagation through an interface
Abstract
An analytical method used to compute the waves of a pulse from an infinitely far or point source, reflected and transmitted at an infinite plane separating two media of different sound velocity and density, and to compute the reflection of an acoustical pulse on a plane described as a surface of acoustic impedence is presented. The second method is numerical. It is based on a fast Fourier transform algorithm, used to solve integrals of the Sommerfeld type. The results obtained are comparable to those obtained by the stationary phase method or by geometrical acoustical approximation.
- Publication:
-
Ph.D. Thesis
- Pub Date:
- December 1985
- Bibcode:
- 1985PhDT........16C
- Keywords:
-
- Acoustic Impedance;
- Acoustic Propagation;
- Acoustic Scattering;
- Algorithms;
- Electroacoustic Waves;
- Interfaces;
- Pressure Pulses;
- Acoustic Velocity;
- Acoustics;
- Approximation;
- Fast Fourier Transformations;
- Acoustics