4-6 分子動力学法による単一気泡の生成と崩壊挙動の解析(セッション4:OS1-1 マルチスケール・シミュレーションとナノ計測)

概要

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The exploration of cavitation bubbles has been one of the most important challenging research problems in fluid dynamics. Much effort has been done to elucidate how bubbles may rebound and shrink from the viewpoint of macroscopic level. However, the bubble nucleation and collapse have not been fully clarified since they must be essentially microscopic phenomena. Therefore, it is indispensable to study bubble dynamics from the microscopic viewpoint of molecular dynamics. In this paper, we will show the MD simulation of bubble dynamics using Lennard-Jones particles and soft-core particles as non-condensable gas, and then we will illustrate generation of a single bubble by repulsive force. We will also show how the single bubble can shrink and collapse for the cases with and without non-condensable gas in the bubble.
一般社団法人日本機械学会の論文
2011-09-25