THERMOSOLUTAL CONVECTION IN A RECTANGULAR ENCLOSURE WITH STRONG SIDE-WALLS AND BOTTOM HEATING

Numerical solutions are presented for the problem of thermosolutal con vection in a rectangular enclosure subjected to simultaneous heating o f the bottom and sidewalls. A steady model based on primitive variable s and an unsteady model solved using a high-accuracy numerical scheme are used to study the problem. Effects of the Lewis number, buoyancy r atio, aspect ratio and the Rayleigh number on flow and heat and mass t ransfer rates are studied. Details of oscillatory solutions and flow b ifurcations are presented.