VORTEX RING STRUCTURE AT LATE STAGES OF FORMATION

Authors
FABRIS D LIEPMANN D
Citation
D. Fabris et D. Liepmann, VORTEX RING STRUCTURE AT LATE STAGES OF FORMATION, Physics of fluids, 9(9), 1997, pp. 2801-2803
Citations number
13
Categorie Soggetti
Mechanics,"Phsycs, Fluid & Plasmas
Journal title
Physics of fluids → ACNP
ISSN journal
10706631
Volume
9
Issue
9
Year of publication
1997
Pages
2801 - 2803
Database
ISI
SICI code
1070-6631(1997)9:9<2801:VRSALS>2.0.ZU;2-O
Abstract
High resolution DPIV measurements are made of a vortex ring formed by a piston/cylinder mechanism (Reynolds number 3700 and 7500). A complex ring structure is identified. The stopping condition of the piston le ads to vortical fluid collecting near the forward stagnation point of the ring. In addition, the roll-up of the core produces a vorticity di stribution that departs from a simple Gaussian profile. (C) 1997 Ameri can Institute of Physics.