Stationary fronts of the thermohaline circulation in the low-aspect-ratio limit - Aix-Marseille Université
Article Dans Une Revue Journal of Fluid Mechanics Année : 1997

Stationary fronts of the thermohaline circulation in the low-aspect-ratio limit

Résumé

A two-dimensional Boussinesq model of the thermohaline convection in a rectangular domain is forced at the top by a prescribed temperature and a prescribed salinity flux. The two forcings have opposite effects on the density field, which leads to the formation of fronts and multiple equilibria. Numerical results are interpreted through a comparison with the solutions of an asymptotic equation, derived in the limit of a shallow basin by Cessi & Young (1992). In order to explain the discrepancies between the numerical and the asymptotic solutions, we extend this asymptotic approach through a geometrical representation and a topological classification of the surface forcings. By comparing three forcings, we propose a global picture which gives clues to interpret the numerical solutions.
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hal-02864088 , version 1 (04-09-2024)

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Laurence Fleury, Olivier Thual. Stationary fronts of the thermohaline circulation in the low-aspect-ratio limit. Journal of Fluid Mechanics, 1997, 349, pp.117-147. ⟨10.1017/S0022112097006678⟩. ⟨hal-02864088⟩
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