Underwater acoustic scattering from spherical particulates and bubbles
Abstract
High frequency underwater acoustic scattering from spherical particulates is examined theoretically for purposes of comparison with available data to develop conclusions on the types and magnitudes of scattering in various geographical regions. The simplifying assumptions of an ideal fluid sphere and isotropic medium conditions are employed in the derivation of the theoretical particulate scattering model. This theory is detailed here and also presented in the form of scattering plots generated by a computer model developed in this study to facilitate accurate analysis of individual scatterers. Special theoretical cases are presented and examined, including those of a large sphere, a small sphere, a rigid sphere (highly incompressible), and a gas bubble (highly compressible), for which additional consideration of damping effects is provided.
- Publication:
-
Final Report Naval Underwater Systems Center
- Pub Date:
- November 1989
- Bibcode:
- 1989nusc.rept.....S
- Keywords:
-
- Acoustic Scattering;
- Bubbles;
- Damping;
- Particulates;
- Spheres;
- Underwater Acoustics;
- Accuracy;
- Computerized Simulation;
- Isotropism;
- Models;
- Plotting;
- Acoustics