Thermal radiation heat transport using discrete ordinates

The DOT-IV discrete ordinates code is used to analyze radiative heat transport through absorbing, emitting and scattering media in two-dimensional cylindrical enclosures. The emissive power distributions and surface heat transfer rates for enclosures with diffuse boundary or distributed sources are determined using various orders of quadrature and comparative results are presented. The effects of anisotropic scattering, optical thickness and wall emissivity are discussed. Using the multigroup capability of the DOT-IV code, the analysis is extended to nongray radiation by a combustion gas mixture based on the exponential wide band model