EFFECT OF NONAXISYMMETRIC FORCING ON A SWIRLING JET WITH VORTEX BREAKDOWN

Authors
GURSUL I
Citation
I. Gursul, EFFECT OF NONAXISYMMETRIC FORCING ON A SWIRLING JET WITH VORTEX BREAKDOWN, Journal of fluids engineering, 118(2), 1996, pp. 316-321
Citations number
25
Categorie Soggetti
Engineering, Mechanical
Journal title
Journal of fluids engineering → ACNP
ISSN journal
00982202
Volume
118
Issue
2
Year of publication
1996
Pages
316 - 321
Database
ISI
SICI code
0098-2202(1996)118:2<316:EONFOA>2.0.ZU;2-Z
Abstract
Nonaxisymmetric forcing was applied to the vortex breakdown flowfield of a strongly swirling jet and its effects were investigated experimen tally. It is shown that the spreading rare of the jet can be increased due to the excitation of the helical mode instability of the breakdow n flowfield. This can be achieved for extremely low amplitudes of exci tation.