抄録
Behavior of growing/collapsing vapor bubble ejected to subcooled liquid bath was focused. Vapor at designated temp was generated in the vapor generater and ejected to the subcooled pool to form a vapor bubble. This system enabled the authors to extract interaction between the vapor and the liquid in the condensing process. The bubble behavior was detected by employing a high-speed camera with up to 100,000fps. Instability emerged over the surface of the growing and collapsing vapor is discussed as functions of the degree of subcooling, and the temperature and ejection speed of vapor in comparing to the micro-bubble emission boiling known as MEB.
