The schematic diagram and the mesh of the semiannulus enclosure used in the present CVFEM program are shown in Fig. 6.31 
. The inner and outer walls are maintained at constant temperatures Th
, respectively, while the two other walls are thermally insulated. Also, the boundary conditions of concentration are similar to temperature. It is also assumed that the uniform magnetic field (
) of constant magnitude
is applied, where
are unit vectors in the Cartesian ...