Abstract
We report on numerical simulations of internal wave and vortical mode interactions in stably-stratified fluids. Two problems were considered: a wave/vortical mode resonance, and the Taylor-Green problem. In both cases the results of the simulations supported the perturbation theory of Lelong and Riley (1989) for Froude numbers of order one of less. Furthermore, in each case computed in this range of Froude number, the vortical mode exhibited strong instabilities, transferring energy to larger horizontal scales.
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© 1991 Springer Science+Business Media Dordrecht
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Riley, J.J., Lelong, MP.G., Slinn, D.N. (1991). Organized Structures in Strongly Stratified Flows. In: Metais, O., Lesieur, M. (eds) Turbulence and Coherent Structures. Fluid Mechanics and Its Applications, vol 2. Springer, Dordrecht. https://doi.org/10.1007/978-94-015-7904-9_25
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DOI: https://doi.org/10.1007/978-94-015-7904-9_25
Publisher Name: Springer, Dordrecht
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