Abstract
An approximate analytical description of the nonstationary evolution of cylindrical nonlinear solitary waves with a complex structure is given. A modified Gardner equation with a boundary condition in the form of a “wide” soliton close to the limiting one is analyzed. The analysis shows a qualitative difference in the behavior of converging and diverging waves, as well as a difference from the quasi-stationary dynamics of cylindrical solitons.
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Funding
This work was carried out within the scope of the state contract for the Institute of Applied Physics, Russian Academy of Sciences, research and development theme no. 0035-2019-0007, and supported in part by the Russian Foundation for Basic Research, project nos. 18-05-00292 and 20-05-00776.
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Translated by A. Nikolskii
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Gorshkov, K.A., Ostrovsky, L.A. & Soustova, I.A. Dynamics of Nonstationary Cylindrical Solitary Internal Waves. Izv. Atmos. Ocean. Phys. 57, 170–179 (2021). https://doi.org/10.1134/S0001433821020055
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DOI: https://doi.org/10.1134/S0001433821020055