Comparison between the Tap Model and Sara-2d Results.
Abstract
The Technical Advisory Panel (TAP) has developed a simple model for the bistatic response of a submarine consisting of four scattering mechanisms: the backscattering response from a finite cylinder, forward scattering from a finite cylinder, scattering from hemispherical end-caps and scattering of elastic waves in the cylinder. Scattering results using the TAP model are compared to computations made using finite elements/infinite elements method for a finite cylindrical shell with hemispherical end-caps for two different cases. In the first case the cylinder does not contain ribs. In the second case the cylinder contains eighty-five ribs with equal spacing between any two adjacent ribs. Comparisons show that major scattering features such as a strong specular reflection or the strong forward scattering field look similar using the two approaches but differences can be observed between the two results. The TAP model predicts a lower forward scattered field at some angles, specially near end incidence.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 12, 1997
- Accession Number
- ADA329259
Entities
People
- Angie Sarkissian
Organizations
- United States Naval Research Laboratory