T0501-3-6 単層カーボンナノチューブ膜内部における気体分子の拡散運動の数値解析([T0501-3]マイクロ・ナノスケールの熱流体現象(3))

概要

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Single-walled carbon nanotube (SWNT) is expected to be used as one of the applications for enhancing heat exchange or sensing a small amount of gas molecules because of their large specific surface areas and their ability to adsorb gas molecules. The analysis on behavior of gas molecules inside a film made up with SWNTs is especially important for developing micro/nano devices or making film itself. Although the behavior of gas molecules scattered by the film has been investigated experimentally, the specific behavior of gas molecules inside the film has not been clarified yet. In this study, we analyzed the behavior of gas molecules inside the film by introducing numerical simulation. We calculated the scattering angle distributions and number of collisions of reflected and transmitted molecules, and confirmed relationship between diffusive movement of gas molecules and energy accommodation process.
2010-09-04