Abstract
This contribution describes a combined experimental-numerical study of decaying quasi2D turbulent flows on a rectangular domain with no-slip boundaries. While decaying, the flow is found to organise in a domain-filling pattern of counter-rotating cells.
Advection of filaments of viscously generated wall vorticity into the interior results in a continuing perturbation of the cellular pattern. The time dependence thus introduced provides the essential mechanism for chaotic advection: passive tracers may move from one cell to a neighbouring one, all the way along the array.
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© 1998 Springer Science+Business Media Dordrecht
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Van Heijst, G.F., Clercx, H.J.H. (1998). Selforganisation of Quasi-2D Flows in a Rectangular Container. In: Biesheuvel, A., van Heijst, G.F. (eds) In Fascination of Fluid Dynamics. Fluid Mechanics and its Applications, vol 45. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-4986-0_10
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DOI: https://doi.org/10.1007/978-94-011-4986-0_10
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