| The purpose of this research was to investigate theoretically and experimentally phase distribution and interfacial area density phenomena for different types of two-phase flow regimes.; The geometrical analysis presented in this work was used to predict the interfacial area density and to derive a transport equation for interfacial area density. A theoretical analysis, for stratified flow, was done for the assumption of a sinusoidal wave on the liquid film. A Taylor bubble was studied in support of the analysis of slug flow in a vertical tube. The interface of a Taylor bubble was also observed experimentally, and a standing wave was found. Laser Doppler and Phase-Doppler measurements for simulated reduced gravity bubbly, two-phase flow were also taken for dispersed (droplet) liquid/liquid upflows.; The results presented in this work can be used to validate and improve two-fluid models and will hopefully contribute to a better understanding of multiphase flows. |
