variavel0=<b>FELIPE DE AQUINO</b> - felipe@debas.faenquil.br FAENQUIL
<b>Maurício Araújo Zanardi</b> - mzardi@feg.unesp.br UNESP
<b>Abstract.</b> The effect of a vertical and uniform magnetic field on the natural convection of a liquid inside a isosceles triangular enclosure with a lateral side wall heated, and the other cold, with the base adiabatic, is studied. It was used Patankar "control volume method" to solve the mass, momentum and energy equations. The numerical procedure used was based in the SIMPLE algorithm. The isotherms, streamlines and profiles of horizontal and vertical velocities are presented for the simulations studied; the normalized Nusselt number is presented as a function of Hartmann number and Rayleigh number. The flow pattern and the heat transfer characteristics inside the cavity are presented for Hartmann number varying over 0 to 800. The magnetic field dampens the flow field and the heat transfer. As the Hartmann number increases, the temperature field resembles that of the conduction type. The normalized Nusselt number at the cold wall, decreases with the increase of the Hartmann number Ha. The simulations were made for 10^3<Ra<10^8, for a aspect ratio equal 0.5. Prandtl number used was 10.
<b>Keywords.</b> natural convection, magnetic field, triangular enclosure.