Piva, M.; Iglesias, M.; Bissio, P.; Calvo, A. - In: Physica A: Statistical Mechanics and its Applications 329 (2003) 1, pp. 1-6
We studied the vortex formation during drainage of water from a cylindrical vessel. The rate at which the vortex grows into a full funnel was found to depend on the initial velocity field characterized by Vθi, the maximum tangential velocity on the free surface and the nozzle location relative...