Acoustic scattering by an elastic elliptic cylinder in water: numerical results and experiments.
Identifieur interne : 001339 ( Main/Exploration ); précédent : 001338; suivant : 001340Acoustic scattering by an elastic elliptic cylinder in water: numerical results and experiments.
Auteurs : F. Léon [France] ; F. Chati ; J M ConoirSource :
- Ultrasonics [ 0041-624X ] ; 2004.
Abstract
The acoustic scattering from an elastic elliptic cylinder immersed in water and excited by a normally incident plane wave is considered in this paper. The purpose is to determine, theoretically and experimentally, the pressure scattered by this cylinder. A model based on the theory of elasticity is described briefly. It consists in carrying out expansions in Fourier series of the expressions relating to the conditions of continuity (displacements and constraints) at the surface of cylinder. These expressions form a system of equations. The resolution of this system enables us to obtain the scattering coefficient, then the pressure scattered by the cylinder. The numerical results obtained from this model are compared with experimental results obtained by means of an experimental short-pulse method presented in the literature. An good agreement between the results is noted.
DOI: 10.1016/j.ultras.2004.01.022
PubMed: 15047301
Affiliations:
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Le document en format XML
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<front><div type="abstract" xml:lang="en">The acoustic scattering from an elastic elliptic cylinder immersed in water and excited by a normally incident plane wave is considered in this paper. The purpose is to determine, theoretically and experimentally, the pressure scattered by this cylinder. A model based on the theory of elasticity is described briefly. It consists in carrying out expansions in Fourier series of the expressions relating to the conditions of continuity (displacements and constraints) at the surface of cylinder. These expressions form a system of equations. The resolution of this system enables us to obtain the scattering coefficient, then the pressure scattered by the cylinder. The numerical results obtained from this model are compared with experimental results obtained by means of an experimental short-pulse method presented in the literature. An good agreement between the results is noted.</div>
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