含界面系统的平衡稳定性研究(英文)

STUDY ON THE EQUILIBRIUM STABILITY IN A SURFACE-INCLUDED SYSTEM

讨论了包含界面的两相系统的平衡稳定性。通过建立模型 ,根据熵增原理 ,得出结论 ,即对含界面的两相系统 ,例如气体中的液滴或液体中的气泡 ,当其界面是球冠形状时 ,只有当球冠的高度小于球冠半径时 ,系统才能处于稳定的平衡状态 .

The present paper discusses the equilibrium stabiolity in a system that consists of two phases bounded by an interface. After setting up a model and judging from the principle of increase of entropy, we conclude that for a surface-included system which is in spherical crown shape, such as a vapor bubble inliquid or a liquid drop in vapor, only when the height is less than the bottom radius can it remain a stable equilibrium.