ISSN Online: 2377-424X
International Heat Transfer Conference 12
Bubble Nucleation: A Microscopic Phenomenon
摘要
In this article, vaporous bubble nucleation in liquid and the evaporation process of a liquid droplet at its superheat limit were discussed based on clustering process of molecules (molecular cluster model for bubble nucleation). For the vapor bubble formation, the energy barrier against bubble nucleation was estimated by the molecular interaction due to London dispersion force. Bubble nucleation by quantum tunneling in liquid helium under negative pressure near the absolute zero temperature and bubble nucleation on micro heaters were also presented as one of the homogenous nucleation process with the molecular cluster model.