A model for the evolution of turbulent bulges

Meihong Sun*, Seth Lichter

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


It is shown that vortices rising through a high-Reynolds number boundary layer can interact with the mean shear so as to yield a localized structure similar to the bulges seen in turbulent boundary layers. These bulges evolve so as to entrain irrotational flow into the boundary layer. It is also shown that vortices can initiate the evolution of detrainment, in which rotational fluid is ejected into the outer flow. The results of this work support the idea that horseshoe vortices can lead to the evolution of large-scale structure in the boudary layer.

Original languageEnglish (US)
Pages (from-to)2424-2432
Number of pages9
JournalPhysics of Fluids
Issue number8
StatePublished - Aug 2003

ASJC Scopus subject areas

  • Computational Mechanics
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes


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