Skip to main content

Connection between corner vortices and shear layer instability in flow past an ellipse

Publication ,  Journal Article
Wang, ZJ; Liu, JG; Childress, S
Published in: Physics of Fluids
January 1, 1999

We investigate, by numerical simulation, the shear layer instability associated with the outer layer of a spiral vortex formed behind an impulsively started thin ellipse. The unstable free shear layer undergoes a secondary instability. We connect this instability with the dynamics of corner vortices adjacent to the tip of the ellipse by observing that the typical turnover time of the corner vortex matches the period of the unstable mode in the shear layer. We suggest that the corner vortex acts as a signal generator, and produces periodic perturbation which triggers the instability. © 1999 American Institute of Physics.

Duke Scholars

Published In

Physics of Fluids

DOI

ISSN

1070-6631

Publication Date

January 1, 1999

Volume

11

Issue

9

Start / End Page

2446 / 2448

Related Subject Headings

  • Fluids & Plasmas
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 40 Engineering
  • 09 Engineering
  • 02 Physical Sciences
  • 01 Mathematical Sciences
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Wang, Z. J., Liu, J. G., & Childress, S. (1999). Connection between corner vortices and shear layer instability in flow past an ellipse. Physics of Fluids, 11(9), 2446–2448. https://doi.org/10.1063/1.870108
Wang, Z. J., J. G. Liu, and S. Childress. “Connection between corner vortices and shear layer instability in flow past an ellipse.” Physics of Fluids 11, no. 9 (January 1, 1999): 2446–48. https://doi.org/10.1063/1.870108.
Wang ZJ, Liu JG, Childress S. Connection between corner vortices and shear layer instability in flow past an ellipse. Physics of Fluids. 1999 Jan 1;11(9):2446–8.
Wang, Z. J., et al. “Connection between corner vortices and shear layer instability in flow past an ellipse.” Physics of Fluids, vol. 11, no. 9, Jan. 1999, pp. 2446–48. Scopus, doi:10.1063/1.870108.
Wang ZJ, Liu JG, Childress S. Connection between corner vortices and shear layer instability in flow past an ellipse. Physics of Fluids. 1999 Jan 1;11(9):2446–2448.

Published In

Physics of Fluids

DOI

ISSN

1070-6631

Publication Date

January 1, 1999

Volume

11

Issue

9

Start / End Page

2446 / 2448

Related Subject Headings

  • Fluids & Plasmas
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 40 Engineering
  • 09 Engineering
  • 02 Physical Sciences
  • 01 Mathematical Sciences