Three-dimensional acoustic scattering of a source-generated field from a cylindrical island

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Title

Three-dimensional acoustic scattering of a source-generated field from a cylindrical island (EN)

Creator

Athanassoulis, GA (EN)

Prospathopoulos, AM (EN)

Type

journalArticle (EN)

Partial document
Publication in journal (EN)

Article
Scientific article (EN)

Issued

2014-03-01T01:12:27Z

1996 (EN)

Year

1996 (EN)

Description

In this work, an analytic solution is presented for the three-dimensional (3-D) problem of acoustic scattering from a nonpenetrable cylindrical island in shallow water. The ocean environment around the island is considered range independent, with arbitrary sound-speed profile, and the bottom is assumed to be rigid. The total acoustic field generated by an harmonic point source is obtained as a normal-mode, double-series expansion. A systematic numerical investigation of the double series is presented. Results concerning the pressure field and the transmission loss around the cylindrical island are given for the case of an acoustically soft and an acoustically hard island boundary in an isovelocity environment. The presented analytic solution is numerically efficient for relatively low frequencies, and can serve as a 3-D benchmark solution in the appropriate frequency range. (C) 1996 Acoustical Society of America. (EN)

Scientific field

Acoustics (EN)

Natural Sciences ▶ Physical sciences
Acoustics and Ultrasonics (EN)

Subject

acoustics (EN)

sound (EN)

mathematical model (EN)

sound transmission (EN)

mathematical analysis (EN)

priority journal (EN)

article (EN)

Journal