Naugolnykh K. A. (June 2014): Nonlinear sound waves upon collapse of a vortex dipole. Acoust. Phys., 60 (4), 424-426. doi:10.1134/S1063771014040113Full text not available from this repository.
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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