International Journal of Heat and Mass Transfer vol:38 issue:6 pages:989-999
Level swell in pool boiling is overestimated by drift-flux equations for forced convection boiling. This is attributed to the presence in pool boiling of large slug-like bubbles and of bubble induced liquid circulation. These phenomena are analysed and a new drift-flux equation is presented which is specifically aimed at predicting void fraction in pool boiling. The correlation is compared to a set of experimental data and proves to be more accurate than other existing correlations.