Dynamic Characteristics of Bubble Growth and Departure in Nucleate Boiling - Bubble Departure Diameter and Frequency

On the basis of currently available study results this paper introduces a characteristic length scale and time scale to describe the dynamic growth and departure process of bubbles in nucleate boiling. A general correlation between bubble departure diameter and bubble growth time is thereby obtained. Through the use of heat transfer analogous method a general formula has been worked out to calculate the bubble departure diameter. The study results of the present paper are in full agreement with experimental ones provided by other researchers.