M.A. Sokolovskiy, J. Verron, X.J. Carton. The formation of new quasi-stationary vortex patterns from the interaction of two identical vortices in a rotating fluid. Ocean Dynamics, 2018, v. 68, N 6, pp. 723-733.
Within the framework of the quasi-geostrophic approximation, the interactions of two identical initially circular vortex patches are studied using the contour dynamics/surgery method. The cases of barotropic vortices and of vortices in the upper layer of a two-layer fluid are considered. Diagrams showing the end states of vortex interactions and, in particular, the new regime of vortex triplet formation are constructed for a wide range of external parameters. This paper shows that, in the nonlinear evolution of two such (like-signed) vortices, the filaments and vorticity fragments surrounding the merged vortex often collapse into satellite vortices. Therefore, the conditions for the formation and the quasi-steady motions of a new type of triplet-shaped vortex structure are obtained.
2018Аннотированный каталог опубликованных работ / автор-соствитель: П.И. Бухарицин. – М.: Издательский дом Академии Естествознания, 2018. – 162 с.
2018J. N. Reinaud, M.A. Sokolovskiy, X. Carton. Hetonic quartets in a two-layer quasi-geostrophic flow: V-states and stability. Physics of Fluids, 2018, v. 30, N 5, 056602 (8 pp).