Thermal analysis on natural-convection coupled with radiative heat transfer in a saturated porous cavity

Porous foam is an ideal material for enhancing radiative heat transfer in numerous thermal equipment. The solid skeletons of porous foams can absorb/release energy and convective with the surrounding fluid pores. In this paper, conduction-convection-radiation coupling a cavity investigated. A local non-equilibrium model used to represent transport during phases. flux caused by radiation obtained solving equation. fields are studied discern various parameters, including Planck numbers, modified Rayleigh interphase coefficients, H. Our study indicates following: effect be neglected when Pl > 20, numbers have little influence on temperature dominant between two-phases weak, thermal-equilibrium formed H exhibits high values.