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http://dx.doi.org/10.5139/JKSAS.2005.33.4.057

An efficient method using the modified view factor for estimating the molecular backscattering probability in the space conditions  

Lee, Jin-Won (포항공대 기계공학과)
Lee, Jae-Dal (포항공대 대학원 기계공학과)
Yi, Min-Young (포항공대 대학원 기계공학과)
Han, Dong-In (한국항공우주연구원)
Lee, Chang-Ho (한국항공우주연구원)
Lee, S.-R. (한국항공우주연구원)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.33, no.4, 2005 , pp. 57-62 More about this Journal
Abstract
Satellite contamination from back-scattered molecules has long been analyzed using the BGK theory or the DSMC technique which are rather inefficient in that they are complicated or take a long time in the analysis. This study presents a new technique of estimating the back-scattering contamination, which is very simple and easy to use like the view factor method and also very accurate. This method, called the modified view factor method, is equivalent to the DSMC in so far as the molecular thermal velocity is much smaller than the satellite velocity and the mean free path much longer than the satellite.
Keywords
satellite; molecular contamination; backscattering probability; view factor; reflector;
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