European Turbulence Conference 2015

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11:15
15 mins

Effect of confinement on the decay of vortex ring
Sooraj R, Sameen A

Session: Vortex Dynamics 3
Session starts: Wednesday 26 August, 10:30
Presentation starts: 11:15
Room: Room B

Sooraj R (Department of Aerospace Engineering, Indian Institute of Technology Madras, Chennai, India.)
Sameen A (Department of Aerospace Engineering, Indian Institute of Technology Madras, Chennai, India.)

Abstract:
The effect of confinement on the decay of vortex ring is studied computationally using Lattice Boltzmann Method. An Initial vortex ring, introduced inside a wall bounded cubical domain, is let to evolve and its decay is noted in terms of maximum vorticity at the core and the total kinetic energy inside the domain. The study shows distinct regimes of decay in all cases of confinement ratios(ratio of vortex ring diameter to length of the cubical domain).