A Numerical Study on Rising Characteristics of Condensing Bubble using VOF Model

In nuclear engineering field, the understanding of the behavior of condensing bubble is very important to analyze and model the subcooled boiling flow. Though there have been many numerical studies on bubble behavior, most researches focused on the analysis of the behavior of adiabatic bubble so that the understanding of the behavior of condensing bubbles is insufficient as yet. In this study, the behavior of condensing bubble was investigated by using FLUENT code coupled with the UDF modeling of bubble condensation proposed by Ref. 1. The analysis of bubble behavior is performed qualitatively by comparing with the behavior of an adiabatic bubble under various conditions