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Stationary states of identical point vortices and vortex foam on the sphere
2012
Proceedings of the Royal Society A
Stationary configurations of identical point vortices on the sphere are investigated using a simple numerical scheme. Configurations in which the vortices are arrayed along curves on the sphere are exhibited, which approximate equilibrium configurations of vortex sheets on the sphere. Other configurations (found after starting from random initial conditions) exhibit net-like distributions of vorticity, dividing the sphere into many cells that contain no vorticity or diffuse vorticity and
doi:10.1098/rspa.2012.0622
fatcat:bc6fo5et4vbn5atpwo5i4epw3m