A Study on the Flow Pattern Transitions from Intermittent Flow to Annular Flow in Horizontal and Inclined Pipes

This paper studied the flow pattern transitions from intermittent flow to annular flow in horizontal and inclined pipes experimentally and theoretically. According to the phenomena observed in the experiment, a new mechanism was proposed to explain the formation of annular flow and a new physical model was given simultaneously based on the mechanism. The theoretical results agreed with experimental data very well and compared with the results of others.