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Acoustic field outside a cylindrical region excited from inside

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Radiophysics and Quantum Electronics Aims and scope

We present the results of numerical calculation of the acoustic field distribution in a structure consisting of three cylindrically symmetrical, infinitely long coaxial regions with identical constant density. The media in the inner and outer regions have the same sound velocity which is different from that in the intermediate region. In the inner region, a harmonic pressure source is located. Expressions for the acoustic fields in each region are derived and the field distribution in the outer region is determined. The numerical analysis is performed at the distances corresponding to the near field of the source. Characteristic features of the field structure as a function of the source frequency, the sizes of the system, and the acoustic parameters of the medium are determined. The results obtained can be used in geophysical prospecting for characterization of boreholes, in acoustic logging of wells, and in the problems of noise control near industrial and power plants.

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Authors and Affiliations

  1. Institute of Applied Physics of the Russian Academy of Sciences, Nizhny Novgorod, Russia

    Yu. M. Zaslavsky & V. Yu. Zaslavsky

Authors
  1. Yu. M. Zaslavsky
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  2. V. Yu. Zaslavsky
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Correspondence to Yu. M. Zaslavsky.

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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Radiofizika, Vol. 53, No. 3, pp. 188–195, March 2010.

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Zaslavsky, Y.M., Zaslavsky, V.Y. Acoustic field outside a cylindrical region excited from inside. Radiophys Quantum El 53, 171–177 (2010). https://doi.org/10.1007/s11141-010-9213-0

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  • DOI: https://doi.org/10.1007/s11141-010-9213-0

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