Circulation de Hadley dans une cavite rectangulaire sous champ magnetique vertical

摘要

The convective flow occuring in a fluid layer, due to a horizontal temperature gradient and controled by a vertical magnetic field, is studied. The fluid, enclosed in a rectangular cavity, is a conductive liquid metal with a Prandtl number assumed to be small. Velocity, temperature and electric potential are calculated analytically. With these solutions, the effect of lateral confinement and magnetic field intensity on linear stability thresholds is studied analytically and numerically.