Modeling of radiative heat transfer of a real gas in 2D enclosure

Abstract

A two-dimensional radiation code based on the discrete ordinates method (DOM) coupled with spectral line-based weighted sum of grey gases (SLW) model for radiative heat transfer in non-grey absorbing–emitting media for use in conjunction with a computational fluid dynamics (CFD ) code was developed. The code was applied to four different kinds of participating media: two homogeneous and isothermal and two non-homogeneous and non- isothermal cases with a single participating gas (CO 2 or H 2 O). Predictive accuracy of the code is compared with the available results in the literature. Comp arisons reveal that the discrete or dinates method (DOM) coupled with SLW model provides accurate solutions for ra diative heat fluxes and source terms and can be used with confidence in conjunction with CFD codes