Abstract
When a turbulent vortex is near a thin, stratified interface, the entrainment rate across the interface depends on three conventional parameters: the Richardson, Reynolds, and Schmidt numbers (Turner 1973). However, recent experiments have revealed that these parameters by themselves are not sufficient to determine the entrainment rate. For example, a horizontal jet parallel to and below the interface entrains at a rate proportional to Ri −3/2 (Schneider 1980), while the same jet, operating at identical values of these parameters but oriented to impinge vertically on the interface, entrains at a rate proportional to Ri −1/2 (Cotel 1995). Therefore, an additional parameter must be necessary to determine the entrainment rate. This paper presents the arguments for one particular candidate.
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© 1996 Kluwer Academic Publishers
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Cotel, A.J., Breidenthal, R.E. (1996). Vortex Persistence. In: Gavrilakis, S., Machiels, L., Monkewitz, P.A. (eds) Advances in Turbulence VI. Fluid Mechanics and its Applications, vol 36. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-0297-8_28
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DOI: https://doi.org/10.1007/978-94-009-0297-8_28
Publisher Name: Springer, Dordrecht
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