MNM-5A-3 カーボンナノチューブ垂直配向膜における気体分子のエネルギー適応過程の数値解析(セッション 5A ナノ・マイクロ異相界面センシングと制御)

概要

論文の詳細を見る
Film made up with carbon nanotubes (CNTs) is expected to be used as one of the applications for enhancing heat exchange in micro/nano devices. The specific behavior of gas molecules inside the film, however, has not been clarified yet. In this study, we introduced numerical simulation to investigate the behavior of gas molecules scattered by CNTs. The film was modeled by piling up cylinders representing CNTs, and different scattering models were used in collisions between CNTs and gas molecules. We calculated the scattering angle distributions, velocity distributions, and number of collisions of reflected and transmitted molecules. We confirmed that although energy exchange of each collision between single CNT and a gas molecule is small, randomly oriented structure of CNT film induced diffusive movement of gas molecules, which leads to high accommodation between the film and gas molecules.
一般社団法人日本機械学会の論文
2010-10-12