Fully anisotropic problems are found where the radiative interaction is due to small-scale elements that lack spherical symmetry, for example: fibrous insulation, finned heat sinks, plant canopies, and some solar energy absorbers. We present the effective bulk optical properties of a PM composed of small-scale opaque cylinders. The properties are derived from data generated by detailed Monte-Carlo numerical experiments. The data reduction procedure is relatively simple and does not require a full solution and optimization of the Radiative Transfer Equation. Benchmark cases are presented, comparing an exact solution (with geometric detail of the cylinder array) and an approximate solution using a continuous PM model with the effective volumetric properties.
Effective Radiative Properties of a Cylinder Array
Contributed by the Heat Transfer Division for publication in the JOURNAL OF HEAT TRANSFER. Manuscript received by the Heat Transfer Division September 1, 2000; revision received August 20, 2001. Associate Editor: D. A. Kaminski.
Zhang , C., Kribus , A., and Ben-Zvi , R. (August 20, 2001). "Effective Radiative Properties of a Cylinder Array ." ASME. J. Heat Transfer. February 2002; 124(1): 198–200. https://doi.org/10.1115/1.1423317
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