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Validation of a time-accurate weak form algorithm for convection – Grey body radiation dominated unsteady heat transfer.
- Source :
-
International Journal of Heat & Mass Transfer . May2014, Vol. 72, p260-273. 14p. - Publication Year :
- 2014
-
Abstract
- Abstract: Extremization of a weak form for the continuum energy conservation principle differential equation naturally implements fluid convection, radiation and flux Robin boundary conditions associated with unsteady heat transfer. Combining a spatial semi-discretization via finite element trial space basis functions with time-accurate integration for computing. Closure for grey body radiation is a newly derived radiosity formulation generating piecewise discontinuous solutions, while that for natural-forced-mixed convection heat transfer is extracted from the literature. Algorithm performance, mathematically predicted by asymptotic convergence theory, is subsequently validated with data obtained in 24h diurnal field experiments for 1/8’’ and 1’’ thick aluminum plates. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 00179310
- Volume :
- 72
- Database :
- Academic Search Index
- Journal :
- International Journal of Heat & Mass Transfer
- Publication Type :
- Academic Journal
- Accession number :
- 94908102
- Full Text :
- https://doi.org/10.1016/j.ijheatmasstransfer.2013.12.074