Direct numerical simulation of vortex ring evolution from the laminar …

Direct numerical simulation is used to study the temporal development of single vortex rings at various Reynolds numbers and core thicknesses. Qualitative differences between the evolution of thin- and thick-core rings are observed leading to a correction factor to the classical equation for the ring translational velocity.

https://eprints.soton.ac.uk/52010/1/direct_numerical_simulation_of_vortex_ring_evolution_from_the_laminar_to_the_early_turbulent_regime.pdf