Affiliation:
1. Applied Research Laboratories, The University of Texas at Austin , Austin, Texas 78758, USA aarong@arlut.utexas.edu
Abstract
A configurable three-dimensional (3D) finite element framework is used for modeling acoustic scattering from various elastic targets on seabed and for the numerical determination of Green's functions used in far-field target scattering prediction. The 3D selection is chosen for possible inclusion of complex seafloor geometries, such as rough, rippled, cluttered, or variably layered seabeds, in which two-dimensional modeling approaches cannot capture the full acoustic interaction with the target and the seabed. Model results are verified and validated against analytic scattering theories and measured results from the 2013 Target and Reverberation Experiment (TREX) and the 2017 CLUTTEREX experiment.
Funder
Office of Naval Research
Strategic Environmental Research and Development Program
Publisher
Acoustical Society of America (ASA)
Subject
Electrical and Electronic Engineering,Atomic and Molecular Physics, and Optics