Double diffusion in arbitrary porous cavity: Part III

Investigation of heat and mass transfer in a porous cavity is carried out with respect to a small block placed at top corner of cavity along its left vertical surface. The block is heated isothermally to temperature T_h and right vertical surface is maintained at isothermal temperature Tc. The left vertical surface is maintained at constant concentration C_h and right vertical surface at C_c such that C_h>C_c. The governing equations are non-dimensionalised and converted into simpler form of algebraic equations to facilitate its solution. It is found that the heat and mass transfer behaviour is substantially different from the case of block placed at bottom or at the center of left vertical surface.