Modified finite-volume method based on a cell vertex scheme for the solution of radiative transfer problems in complex 3D geometries

作者：Trovalet Lionel; Jeandel Gerard; Coelho Pedro J; Asllanaj Fatmir^*

来源：Journal of Quantitative Spectroscopy and Radiative Transfer, 2011, 112(17): 2661-2675.

DOI：10.1016/j.jqsrt.2011.07.003

• Radiative transfer
• Finite-volume method
• Cell vertex scheme
• Complex 3D geometries
• Unstructured tetrahedral meshes

A modified finite-volume method based on a cell vertex scheme was applied to solve radiative transfer problems within a participating medium of complex three-dimensional shaped domain. The computational spatial domain of interest was divided into four-node tetrahedron elements with unstructured meshes while the adopted formulation was combined with a closure relation based on an exponential scheme. The studied medium was assumed to be grey, non-scattering and was bounded by black surfaces. Our results were then compared with those found in other articles on the subject. The approach shows a very good level of performance for wall heat transfer evaluation. Accurate results were obtained on coarse computational meshes and solution errors were found to decrease with grid refinement.

• 出版日期2011-11