Application of the spatial averaging theorem to radiative heat transfer in two-phase media |
| |
| Authors: | W Lipi&#x;ski J Petrasch S Haussener |
| |
| Institution: | aDepartment of Mechanical Engineering, University of Minnesota, Minneapolis, MN 55455, USA;bDepartment of Mechanical and Aerospace Engineering, University of Florida, Gainesville, FL 32601, USA;cDepartment of Mechanical and Process Engineering, ETH Zurich, 8092 Zurich, Switzerland |
| |
| Abstract: | The spatial averaging theorem is applied to rigorously derive continuum-scale equations of radiative transfer in two-phase media consisting of arbitrary-type phases in the limit of geometrical optics. The derivations are based on the equations of radiative transfer and the corresponding boundary conditions applied at the discrete-scale to each phase, and on the discrete-scale radiative properties of each phase and the interface between the phases. The derivations confirm that radiative transfer in two-phase media consisting of arbitrary-type phases in the range of geometrical optics can be modeled by a set of two continuum-scale equations of radiative transfer describing the variation of the average intensities associated with each phase. Finally, a Monte Carlo based methodology for the determination of average radiative properties is discussed in the light of previous pertinent studies. |
| |
| Keywords: | Radiative transfer Porous media Radiative properties Monte Carlo |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
