publication . Preprint . Article . 2008

A coaxial vortex ring model for vortex breakdown

Denis Blackmore; Morten Brøns; Arnaud Goullet;
Open Access English
  • Published: 15 Jan 2008
Abstract
A simple - yet plausible - model for B-type vortex breakdown flows is postulated; one that is based on the immersion of a pair of slender coaxial vortex rings in a swirling flow of an ideal fluid rotating around the axis of symmetry of the rings. It is shown that this model exhibits in the advection of passive fluid particles (kinematics) just about all of the characteristics that have been observed in what is now a substantial body of published research on the phenomenon of vortex breakdown. Moreover, it is demonstrated how the very nature of the fluid dynamics in axisymmetric breakdown flows can be predicted and controlled by the choice of the initial ring con...
Subjects
arXiv: Physics::Fluid Dynamics
free text keywords: Mathematics - Dynamical Systems, Mathematical Physics, 37J20, 37J25, Statistical and Nonlinear Physics, Condensed Matter Physics, Physics, Burgers vortex, Starting vortex, Classical mechanics, Coaxial, Vortex ring, Mechanics, Horseshoe vortex, Vortex stretching, Vortex, Vortex shedding
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publication . Preprint . Article . 2008

A coaxial vortex ring model for vortex breakdown

Denis Blackmore; Morten Brøns; Arnaud Goullet;