CFD study of balcony spill plumes: Focused on the balcony area.

摘要

This thesis presents the results of an in-depth investigation of air entrainment in balcony spill plumes. The focus of this research was the smoke flow under the balcony area and the rotating regions using CFD modelling and full-scale experiments. Comparisons between model predictions and experimental data indicate that the CFD predictions agree well with experimental data both of which show a large degree of air entrainment into the rotating flow. Mass flow rates of vertical spill plumes near the balcony area were examined to evaluate the applicability of existing balcony spill plume correlations. The results of this study were used to develop an empirical correlation to calculate air entrainment rate at the spill edge. The correlation considers the various factors affecting air entrainment under the balcony area and the rotating region.