Finite element modelling of radiation in a nonparticipating medium coupled with conduction and convection heat transfer with moving boundaries
International Journal of Numerical Methods for Heat & Fluid Flow
ISSN: 0961-5539
Article publication date: 1 May 1999
Abstract
The radiation conduction coupling leads to particular problems due to computation time and high heat fluxes. Because of the hemispheric nature of the radiation, it is difficult to take into account symmetric or periodic conditions for the reduction of the modelled domain. We developed a finite element model of radiative heat transfers between grey diffuse surfaces with a nonparticipating medium with periodic or symmetric boundary conditions. The approaches used to decrease the computation time allowed the modelling of moving radiative surfaces. We introduced this model into a finite element convection diffusion code in order to simulate heat transfers in an electrical rotating engine. The main originality of this study lies in the use of periodic radiative conditions with moving surfaces and in the use of a method which is not based on the isothermal approximation.
Keywords
Citation
Daurelle, J., Occelli, R. and Jaeger, M. (1999), "Finite element modelling of radiation in a nonparticipating medium coupled with conduction and convection heat transfer with moving boundaries", International Journal of Numerical Methods for Heat & Fluid Flow, Vol. 9 No. 3, pp. 257-270. https://doi.org/10.1108/09615539910260121
Publisher
:MCB UP Ltd
Copyright © 1999, MCB UP Limited