Abstract
Acoustic emission by a vortex dipole decreases the dipole energy and changes the vortex velocity distribution. A relative shift of the dipole component occurs. Earlier, such a process of acoustic instability of the vortex was considered as applied to the case of weak acoustic emission described by the wave equation. Features of acoustic instability upon emission of a strongly nonlinear sound by a vortex are considered in this work.
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Original Russian Text © K.A. Naugol’nykh, 2014, published in Akusticheskii Zhurnal, 2014, Vol. 60, No. 4, pp. 395–397.
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Naugol’nykh, K.A. Nonlinear sound waves upon collapse of a vortex dipole. Acoust. Phys. 60, 424–426 (2014). https://doi.org/10.1134/S1063771014040113
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DOI: https://doi.org/10.1134/S1063771014040113