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Proceedings Paper

Comparison of MTK and MOLFLUX models for molecular transport among multiple surface nodes
Author(s): Michael C. Fong; Aleck L. Lee; Chien W. Chang
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Paper Abstract

This paper discusses a comparison of molecular transport predictions between the Molecular Transfer Kinetics (MTK) model based on Gebhart's enclosure theory for thermal radiation and the Molecular Flux (MOLFLUX) model based on the ray-tracing concept. The analysis has shown that the two molecular transport models are equivalent if the 'infinite number of molecular reflections' condition is imposed on MOLFLUX calculations. The general multi-node molecular transport expressions for MTK and MOLFLUX are derived, followed by proving hue MTK/MOLFLUX equivalence through comparisons of the MTK and MOLFLUX solutions for a two-node problem and a special three-node problem. Finally, the MTK/MOLFLUX equivalence is demonstrated by numerical solutions for a 169-node satellite configuration using the two models.

Paper Details

Date Published: 27 October 1998
PDF: 10 pages
Proc. SPIE 3427, Optical Systems Contamination and Degradation, (27 October 1998); doi: 10.1117/12.328497
Show Author Affiliations
Michael C. Fong, Lockheed Martin Missiles & Space (United States)
Aleck L. Lee, Lockheed Martin Missiles & Space (United States)
Chien W. Chang, Lockheed Martin Missiles & Space (United States)


Published in SPIE Proceedings Vol. 3427:
Optical Systems Contamination and Degradation
Philip T. C. Chen; William E. McClintock; Gary J. Rottman, Editor(s)

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