NUMERICAL EVIDENCE OF A PERIOD-DOUBLING I N THE WAKE OF A NACA WING AT THE 2ND HOPF-BIFURCATION

Authors
DUSEK J FRAUNIE P SEROR S
Citation
J. Dusek et al., NUMERICAL EVIDENCE OF A PERIOD-DOUBLING I N THE WAKE OF A NACA WING AT THE 2ND HOPF-BIFURCATION, Comptes rendus de l'Academie des sciences. Serie II. Mecanique, physique, chimie, astronomie, 319(11), 1994, pp. 1271-1278
Citations number
11
Categorie Soggetti
Multidisciplinary Sciences
Journal title
Comptes rendus de l'Academie des sciences. Serie II. Mecanique, physique, chimie, astronomie → ACNP
ISSN journal
12518069
Volume
319
Issue
11
Year of publication
1994
Part
1
Pages
1271 - 1278
Database
ISI
SICI code
1251-8069(1994)319:11<1271:NEOAPI>2.0.ZU;2-C
Abstract
A numerical simulation of the second Hopf bifurcation in the wake of a n infinite NACA 0012 wing at zero incidence is presented. This bifurca tion is characterized by tile onset of three-dimensionality, i.e. of a n oscillating spanwise velocity. The ratio of the the basic period of oscillations appearing at this new bifurcation and that of the already established transverse velocity oscillations as the result of the fir st bifurcation is equal to two at various points of the flow.