分子動力学法による薄い液膜の気液界面における気体論境界条件の検証(反応・多相系相変化,一般講演)

概要

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In the present study, the kinetic boundary condition for the Boltzmann equation at a vapor-liquid interface of thin liquid layer on a solid wall is investigated using molecular dynamics simulations. The vapor and liquid are composed of argon molecules and the solid wall is composed of platinum molecules. Two kinds of energy parameter of L-J potential between argon and platinum are chosen for the simulations with different wetability. The results show that the kinetic boundary condition for the vapor-liquid system is applicable to the vapor-liquid-solid system as long as the liquid layer is about 6 times larger than the molecular diameter because the velocity components in every direction obey the Maxwellian and the evaporation coefficient for the vapor-liquid-solid system coincides with that for the vapor-liquid system.
日本流体力学会の論文
2009-09-02