Finite-element modelling of acoustic wave scattering from fluid, rigid and elastic objects

Authors

  • Omar Falou Dept. of Electrical and Computer Engineering, Ryerson University, 350 Victoria St., Ont. M5B 2K3, Canada
  • J. Carl Kumaradas Dept. of Electrical and Computer Engineering, Ryerson University, 350 Victoria St., Ont. M5B 2K3, Canada
  • Michael C. Kolios Dept. of Electrical and Computer Engineering, Ryerson University, 350 Victoria St., Ont. M5B 2K3, Canada

Keywords:

Acoustic wave propagation, Computation theory, Computer software, Elasticity, Finite element method, Natural frequencies, Rigidity, 3-D arbitrary-shaped structures, Acoustic scattering models, Elastic spheres, Finite-element modeling

Abstract

A finite element model (FEM) of acoustic wave propagation through 3-D arbitrary-shaped structures is developed to solve the problem of high frequency acoustic scattering. The FEMLAB&reg software package was used to develop and solve acoustic scattering models from fluid, rigid, and elastic spheres immersed in a fluid medium, for which analytical solutions are available. The entire computation domain is modeled as a sphere filled with fluid domains. It is found that the FEM provided accurate predictions of wave scattering by three types of scatterers, fluid, rigid immovable, and elastic.

Additional Files

Published

2005-09-01

How to Cite

1.
Falou O, Kumaradas JC, Kolios MC. Finite-element modelling of acoustic wave scattering from fluid, rigid and elastic objects. Canadian Acoustics [Internet]. 2005 Sep. 1 [cited 2024 Mar. 1];33(3):84-5. Available from: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1756

Issue

Section

Proceedings of the Acoustics Week in Canada