Mode interactions in reaction-driven convection in a porous medium

Convective-mode interaction occurring in reaction-driven convection in a porous medium is analyzed using local bifurcation theory. The system considered is a porous medium in the shape of a rectangular box with nonflux boundary conditions at the side walls and the bottom. From linear stability analysis it is found that vertical mode 1 (with one roll in the vertical direction) was always the first to destabilize. Hence, mode interactions …