Two-phase flow patterns in horizontal rectangular minichannel

Abstract

Abstract. The two-phase flow in a short horizontal channel of rectangular cross-section of 1×19 mm 2 has been studied experimentally. Five conventional two-phase flow patterns have been detected (bubble, churn, stratified, annular and jet) and transitions between them have been determined. It is shown that a change in the width of the horizontal channels has a substantial effect on the boundaries between the flow regimes.