.... This objective is achieved by proposing a liquid viscosity-dependent sheltering coefficient model into the Taitel and Dukler (1976) stratified-smooth/stratified-wavy transition model. Further objective is to propose a new slug/annular transition criterion in horizontal and slightly inclined two-phase flow...

... Abstract Majority of existing flow regime transition models do not identify the existence of plug and mist flows. Also, these models are applicable to either vertical or horizontal flow. Further, experimental data in literature show that the model of Taitel and Dukler (1976) under predict...