... in large-diameter horizontal pipelines. A comprehensive slug length database that contains experimental and field data is collected from the current literature for large-diameter pipes (ID ≥ 6 inches). The mechanistic unit-cell model for slug flow is applied by solving mass and momentum conservation...

... With an increasing interest in downward two-phase flow, this paper contributes to the literature with a complete set of two-phase flow measurements, including flow pattern, liquid holdup, pressure gradient, and wall shear stress. Low-viscosity oil and air in a 21 m long and 5.08 cm inner...

... Two-phase slug flow is one of the most common flow patterns in horizontal and near-horizontal multiphase pipelines. Predicting system integral parameters such as pressure gradient and liquid holdup using mechanistic models requires several closure relationships. One of the most crucial closure...