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A finite-volume solution procedure for radialive heol transfer in a three-dimensional nonorthoganaJ enclosure containing participating medium is proposed ",ith geometric relations commonly adopted in compUUltionaJ fluid dynamics. A general discretiUllion equation is formuluted by using the diredionaJ ",eight and tne step scheme for spoJilll differencing. The present approach is vaJidoJed Ihrough comparison ",ith the problems of hexahedral enclosure, annular sector, and three-dimensional combustion chamber, in which the solution aceurru:y as ",eU as computation ejJieiency required have been examined for various cases. AU of the results presented lure support its accuracy as weU as moderate efficiency in computotion lime in Ihe nonorthoganaJ three-dimensional radialion calculation. Finally, lhe present method is applied 10 a kidney-shaped combustion chamber as a three-dimensionDl test case.

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