Spontaneous spin-up during the decay of 2D turbulence in a square container with rigid boundaries

H.J.H. Clercx, S.R. Maassen, G.J.F. Heijst, van

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Abstract

Direct numerical simulations of the decay of 2D turbulent Navier-Stokes flows inside a square container with no-slip boundaries are presented. Several numerical runs have been carried out for three different values of the Reynolds number. A surprising observation in a majority of these runs is the spontaneous spin-up of the flow during the initial stage of the self-organization of the flow, which is due to normal and shear stresses exerted on the fluid by the rigid boundaries.
Original languageEnglish
Pages (from-to)5129-5132
Number of pages4
JournalPhysical Review Letters
Volume80
Issue number23
DOIs
Publication statusPublished - 1998

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