The dominant wave mode within a trailing line vortex

James P. Denier*, Jillian A K Stott

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


We identify the dominant, or most unstable, wave mode for the flow in a trailing line vortex. This dominant mode is found to reside in a wavenumber regime between that of inviscid wave modes and the viscous upper branch neutral wave modes. A reevaluation of the growth rate in the vicinity of the upper branch of the curve of neutral stability allows us to predict the neutral value of the azimuthal and axial wavenumber as a function of the imposed swirl within the trailing line vortex.

Original languageEnglish
Article number014101
Pages (from-to)1-9
Number of pages9
JournalPhysics of Fluids
Issue number1
Publication statusPublished - Jan 2005
Externally publishedYes


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