Abstract
Anomalous transparency consists in the passage at certain frequencies of the majority of a source’s radiated energy through an interface, which usually gives strong reflection. Earlier, this effect was established for low-frequency point sources located in a fluid bounded by an air medium. In the case of volumetric sources, additional scattering of waves occurs between the interface of the media and the emitter surface; and the character of the manifestation of this effect is unclear. This work, using the solution to the integral equation corresponding to a boundary value problem, examines the emission of wave energy by spherical sources of different radius and its distribution between the energy flow passing through the water-air interface into the upper half-space and the energy flow going to infinity in the lower half-space. It has been established that the size of the source has virtually no effect on the energy distribution in the low-frequency range, i.e., on the anomalous transparency effect. We also analyze how the relative dimensions of spherical sources affect the energy characteristics in the mid- and high-frequency range.
Similar content being viewed by others
References
O. A. Godin, Phys. Rev. Lett. 97, 164301 (2006).
O. A. Godin, Akust. Zh. 53, 353 (2007) [Acoust. Phys. 53, 305 (2007)].
O. A. Godin, Contemp. Phys. 49, 105 (2008).
M. Hornikx and R. Waxler, J. Comput. Acoust. 18, 297 (2010).
R. S. Matoza, D. Fee, and M. A. Garcés, J. Geophys. Res. B 115, B12312 (2010).
O. A. Godin, J. Acoust. Soc. Am. 129, 45 (2011).
G. H. Koopman, L. Song, and J. B. Fahnline, J. Acoust. Soc. Am. 86, 2433 (1989).
G. W. Benthien and H. A. Schenck, Comp. Struct. 65, 295 (1997).
H. A. Schenck, J. Acoust. Soc. Am. 44, 41 (1968).
E. V. Glushkov, N. V. Glushkova, A. A. Eremin, and V. V. Mikhas’kiv, Prikl. Mat. Mekh. 73, 622 (2009).
M. Zampolli, A. Tesei, G. Canepa, and O. A. Godin, J. Acoust. Soc. Am. 123, 4051 (2008).
L. M. Brekhovskikh and O. A. Godin, Acoustics of Inhomogeneous Media. Vol. 1: Fundamentals of Sound Reflection and Propagation Theory (Nauka, Moscow, 2007) 446 p. [in Russian].
A. G. Sveshnikov, Dokl. Akad. Nauk SSSR 80, 345 (1951).
N. A. Umov, Selected Papers (Gostekhizdat, Moscow, 1950) [in Russian].
D. M. F. Chapman, J. Acoust. Soc. Am. 124, 48 (2008).
M. A. Isakovich, General Acoustics (Nauka, Moscow, 1973) [in Russian].
O. A. Godin, J. Acoust. Soc. Am. 130, EL135 (2011).
O. A. Godin, Proc. Conf. OCEANS’11 MTS/IEEE Kona, Hawaii, 2011, pp. 1–9.
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © E.V. Glushkov, N.V. Glushkova, O.A. Godin, 2013, published in Akusticheskii Zhurnal, 2013, Vol. 59, No. 1, pp. 8–18.
Rights and permissions
About this article
Cite this article
Glushkov, E.V., Glushkova, N.V. & Godin, O.A. The effect of anomalous transparency of the water-air interface for a volumetric sound source. Acoust. Phys. 59, 6–15 (2013). https://doi.org/10.1134/S106377101206005X
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S106377101206005X