A finite-volume scheme for radiative heat transfer in semitransparent media

Citation
Jy. Murthy et Sr. Mathur, A finite-volume scheme for radiative heat transfer in semitransparent media, NUM HEAT B, 37(1), 2000, pp. 25-43
Citations number
12
Categorie Soggetti
Mechanical Engineering
Journal title
NUMERICAL HEAT TRANSFER PART B-FUNDAMENTALS
ISSN journal
10407790 → ACNP
Volume
37
Issue
1
Year of publication
2000
Pages
25 - 43
Database
ISI
SICI code
1040-7790(200001/02)37:1<25:AFSFRH>2.0.ZU;2-C
Abstract
A procedure for computing radiation in semitransparent media is presented. A conservative cell-based finite-volume method is developed for unstructure d meshes composed of arbitrary polyhedra. The angular domain is discretized into a finite number of control angles over which radiant energy is conser ved. At Fresnel interfaces, numerical procedures are developed to conservat ively transfer radiant energy from one angular direction to another as a re sult of reflection and refraction, while accounting for control angle overh ang. Similar procedures are also employed at specular surfaces and symmetry boundaries. The method is tested against analytical solutions and shown to perform satisfactorily.