307 不凝縮ガスの影響を考慮した気泡核生成の分子動力学的研究

概要

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In the present study, molecular dynamics simulation is applied to the analysis of bubble nucleation in the Lennard-Jones liquid including gas impurities. Through the simulation, it is found that the gas whose interaction is very weak and whose diameter is larger than that of solvent fairly raises the nucleation point because the fluctuation in liquid becomes large and more frequent even if the concentration is very low. While in the case in which the interaction of impurity is fairly strong, the effect of diameter to the fluctuation in liquid and the limit of superheat is a little. In addition, the simulation of bubble nucleation in the larger computational domain is executed, and it is observed that two nuclei are formed and these interactions change the growth speed of nucleated void volume.
社団法人日本機械学会の論文
2003-11-22