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Numerical Simulation of the Evolution of Intensive Convective Vortices of the Typhoon Type in a Rotating Fluid

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Abstract

The problem of the generation of a vortex in a rotating vessel locally heated from below is considered. The results of calculating the regime of formation of an intense vortex from a large-scale advective cell are given. The spiral vortex obtained is characterized by cyclonic rotation at a velocity of an order of magnitude greater than the vessel's rate of rotation. The vortex has the characteristic features of atmospheric typhoons. A comparison of the results with the data of analogous laboratory experiments shows that they are in good agreement. The vortex flow restructuring stages after heating is interrupted are also investigated. It is shown that in this case the development of Rayleigh-Taylor instability favours for the formation of extended spiral branches.

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Authors
  1. M. F. Ivanov
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  2. M. E. Povarnitsyn
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Ivanov, M.F., Povarnitsyn, M.E. Numerical Simulation of the Evolution of Intensive Convective Vortices of the Typhoon Type in a Rotating Fluid. Fluid Dynamics 38, 409–416 (2003). https://doi.org/10.1023/A:1025146022661

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  • DOI: https://doi.org/10.1023/A:1025146022661

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