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.
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Effective Radiative Properties of a Cylinder Array
Chongshan Zhang,
Chongshan Zhang
Environmental Sciences and Energy Research Dept., Weizmann Institute of Science, Rehovot 76100, Israel
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Abraham Kribus,
e-mail: avi.kribus@weizmann.ac.il
Abraham Kribus
Environmental Sciences and Energy Research Dept., Weizmann Institute of Science, Rehovot 76100, Israel
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Rami Ben-Zvi
Rami Ben-Zvi
Solar Facilities Unit, Weizmann Institute of Science, Rehovot 76100, Israel
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Chongshan Zhang
Environmental Sciences and Energy Research Dept., Weizmann Institute of Science, Rehovot 76100, Israel
Abraham Kribus
Environmental Sciences and Energy Research Dept., Weizmann Institute of Science, Rehovot 76100, Israel
e-mail: avi.kribus@weizmann.ac.il
Rami Ben-Zvi
Solar Facilities Unit, Weizmann Institute of Science, Rehovot 76100, Israel
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.
J. Heat Transfer. Feb 2002, 124(1): 198-200 (3 pages)
Published Online: August 20, 2001
Article history
Received:
September 1, 2000
Revised:
August 20, 2001
Citation
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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