Submarine High-Frequency Asymptotic Scattering

Application ID: 102741

The primary defense of a submarine lies in its capacity to remain hidden during operation. As radio waves are strongly absorbed by sea water, sound navigation ranging, or SONAR, is one of the main methods used for the detection of submarines. SONAR systems are also used for underwater exploration as well as in the fishing industry.

Designers analyze the way acoustic waves are reflected in order to minimize the equivalent reflecting area of the submarine. This tutorial studies the scattering off the BeTTSi benchmark submarine (Benchmark Target Echo Strength Simulation).

This model uses the high frequency approximation of the Pressure Acoustics, Asymptotic Scattering interface. The analysis is fast and a good approximation at high frequencies when the wavelength is much smaller than the scattering object.

This model example illustrates applications of this type that would nominally be built using the following products: