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Grey‐body surface radiation coupled with conduction and convection for general geometries
Author(s) -
Engelman Michael,
Jamnia MohammadAli
Publication year - 1991
Publication title -
international journal for numerical methods in fluids
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 112
eISSN - 1097-0363
pISSN - 0271-2091
DOI - 10.1002/fld.1650130806
Subject(s) - discretization , decoupling (probability) , convection , boundary (topology) , mechanics , surface (topology) , radiation , thermal conduction , compressibility , physics , geometry , mathematics , thermodynamics , mathematical analysis , optics , engineering , control engineering
Abstract This paper presents a numerical technique for the simulation of the effects of grey‐diffuse surface radiation on the temperature field of fluid flows using FIDAP, a general purpose incompressible, viscous fluid code. The radiating surface relationships assume a non‐participating medium, constant surface temperature and heat fluxes at the discretized elemental level. The technique involves the decoupling of energy and radiation exchange equations. A concept of macrosurfaces, each containing a number of radiating boundary surfaces, is introduced. These boundary macroelements then carry the information from the radiating boundary into the fluid regime. A number of simulations illustrating the algorithm are presented.