| General-purpose cell-based procedures for radiation heat transfer and diffusion processes using unstructured grid are developed. In these procedures, the spatial domain is divided into a finite number of control volumes, while the angular domain is divided into a finite number of control angles.;The present procedures are applied to a variety of test problems. These test problems include conduction heat transfer, fully developed duct flow and heat transfer in ducts, radiation heat transfer, and combined conduction-radiation heat transfer problems. The solutions indicate that the methods are accurate and can be a viable numerical procedure for combined conductive and radiative heat transfer in complex industrial applications. |
