Abstract
The impact of different variables, namely thermal conductivity ratio of solid to porous the radiation parameter and Rayleigh number, is investigated in a cavity being fixed with porous medium that contains a solid material. The solid material which is having square geometry is made to occupy the central position in the cavity. The conjugate heat transfer coupled with mass transfer is analyzed because of the presence of solid in the domain. The left surface of the cavity is forced to have the highest temperature as well as concentration as compared to the right surface that has the lowest temperature and concentration. The energy transport across the solid takes place due to conjugate effect, whereas convection also takes place in the porous domain. Finite element method based on simple triangular element with a node at each of three corners is employed to get the solution of equations across the medium.