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Nonlinear dynamics of phase transitions during seawater freezing with false bottom formation

  • Marine Physics
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Oceanology Aims and scope

Abstract

This paper concerns mathematical modeling of the processes of false bottom evolution taking into account water freezing in the opposite direction from the cooled boundary with the atmosphere. The model of the crystallization process is based on the two-phase zone theory complicated by the moving boundaries of phase transitions and turbulent flows of fluid in the ocean near the false bottom boundary. Analytical solutions of the nonlinear problem are found (the distributions of the temperature and the salinity, the proportion of the solid fraction, the laws of the motion of the boundaries between the phase transitions, and the heat fluxes) and a comparative analysis of the results with the field data observations is performed. It is shown that the heat flux caused by the growing false bottom makes a significant contribution to the heat exchange processes between the ocean and the atmosphere.

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  1. Gor’ky Urals State University, Yekaterinburg, Russia

    D. V. Alexandrov & A. P. Malygin

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  1. D. V. Alexandrov
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  2. A. P. Malygin
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Original Russian Text © D.V. Alexandrov, A.P. Malygin, 2011, published in Okeanologiya, 2011, Vol. 51, No. 6, pp. 1000–1008.

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Alexandrov, D.V., Malygin, A.P. Nonlinear dynamics of phase transitions during seawater freezing with false bottom formation. Oceanology 51, 940–948 (2011). https://doi.org/10.1134/S0001437011060014

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