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Evolution of turbulence in an oscillatory flow in a smooth-walled channel: a viscous secondary instability mechanism

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In this paper, a comparison is made of the evolution of turbulence in oscillatory channel flows with a zero-mean velocity in two and three dimensions, using the numerical technique of the lattice Boltzmann method. The results confirm a primary two-dimensional instability. Evidence is shown of a secondary, viscous three-dimensional instability mechanism acting in the oscillatory boundary layer, which is consistent with experimental observations.
Original languageEnglish
Article number026302
Pages (from-to)026302
JournalPhysical Review E
Early online date5 Aug 2003
Publication statusPublished - 2003


  • 031j

    Rights statement: Copyright 2003 by The American Physical Society

    Final published version, 505 KB, PDF document

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