分子動力学法を用いたアルゴンのナノ液滴の気液界面における蒸発係数の評価(反応・多相系相変化,一般講演)

概要

論文の詳細を見る
Mass fluxes and evaporation coefficients at the interface between an argon nanodroplet and its vapor are investigated by nonequilibrium molecular dynamics (MD) simulations. The simulations are carried out at the temperatures of 85, 90, 95, 100, and 105K with droplet radii ranging from about 1nm to 4nm. The evaporation mass fluxes J_<evap> are obtained by MD simulations of evaporation into vacuum and are found to be almost independent of droplet radius at the specified control surface R_<evap>. Since the outgoing mass flux J_<eq> in an equilibrium state becomes large as the droplet radius does small, the evaporation coefficient α_e, defined by the ratio of J_<evap> to J_<eq>, decreases with decrease in the droplet radius.
日本流体力学会の論文
2009-09-02