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Numerical study of the instabilities of swirling jets

Szász, Robert-Zoltán LU and Fuchs, Laszlo LU (2005) 43rd AIAA Aerospace Sciences Meeting and Exhibit In 43rd AIAA Aerospace Sciences Meeting and Exhibit - Meeting Papers p.10749-10762
Abstract
The stability of circular swirling jets is studied numerically in order to evaluate the influence of Reynolds number in the laminar regime, swirl level and inlet geometrical perturbations on the appearance and evolution of axial and asymmetric modes. The results reveal increasing deviation from symmetry with increasing Reynolds numbers and swirl levels. The critical value of the Reynolds number corresponding to the appearance of an asymmetric mode is also determined. Geometric perturbations are found to affect the dominant asymmetric instability mode.
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author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Asymmetric modes, Circular swirling jets
in
43rd AIAA Aerospace Sciences Meeting and Exhibit - Meeting Papers
pages
10749 - 10762
publisher
American Institute of Aeronautics and Astronautics
conference name
43rd AIAA Aerospace Sciences Meeting and Exhibit
external identifiers
  • Scopus:30744469362
language
English
LU publication?
yes
id
fd19fc68-04ed-4d09-acd5-a2922e0913ed (old id 616044)
alternative location
http://www.aiaa.org/agenda.cfm?lumeetingid=666&formatview=1&dateget=13-Jan-05
date added to LUP
2007-11-25 17:15:39
date last changed
2017-01-01 07:56:06
@inproceedings{fd19fc68-04ed-4d09-acd5-a2922e0913ed,
  abstract     = {The stability of circular swirling jets is studied numerically in order to evaluate the influence of Reynolds number in the laminar regime, swirl level and inlet geometrical perturbations on the appearance and evolution of axial and asymmetric modes. The results reveal increasing deviation from symmetry with increasing Reynolds numbers and swirl levels. The critical value of the Reynolds number corresponding to the appearance of an asymmetric mode is also determined. Geometric perturbations are found to affect the dominant asymmetric instability mode.},
  author       = {Szász, Robert-Zoltán and Fuchs, Laszlo},
  booktitle    = {43rd AIAA Aerospace Sciences Meeting and Exhibit - Meeting Papers},
  keyword      = {Asymmetric modes,Circular swirling jets},
  language     = {eng},
  pages        = {10749--10762},
  publisher    = {American Institute of Aeronautics and Astronautics},
  title        = {Numerical study of the instabilities of swirling jets},
  year         = {2005},
}