Vortex stripping and the generation of high vorticity gradients in two-dimensional flows

B. Legras*, D. Dritschel

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

93 Citations (Scopus)

Abstract

We study the stripping of vortices with monotonic vorticity profiles within adverse shear. It is shown that distributed vortices behave differently from uniform patches regarding the critical onset of tearing. Stripping erodes the exterior layers of a distributed profile and generates very high vorticity gradients at the edge of the vortex. These effects are measured, and a theory which allows a detailed quantification of the mechanism is presented.

Original languageEnglish
Pages (from-to)445-455
Number of pages11
JournalApplied Scientific Research
Volume51
Issue number1-2
DOIs
Publication statusPublished - 1 Jan 1993

Keywords

  • coherent structures
  • two-dimensional turbulence
  • vortex dynamics

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