Abstract:
We consider the stability problem for the stationary rotation of a regular point vortex n-gon lying outside a circular domain. After the article of Havelock (1931), the complete solution of the problem remains unclear in the case 2⩽n⩽6. We obtain the exhaustive results for evenly many vortices n=2,4,6.
Keywords:
stability, point vortex, stationary motion, Hamiltonian systems.
Citation:
L. G. Kurakin, I. V. Ostrovskaya, “Stability of the Thomson vortex polygon with evenly many vortices outside a circular domain”, Sibirsk. Mat. Zh., 51:3 (2010), 584–598; Siberian Math. J., 51:3 (2010), 463–474