Universal Gas-Liquid Flow Pattern Map and Its Use on Closure Relationship Selection

Mechanistic modelling is a common approach to predict design parameters such as flow pattern, pressure drop, or liquid holdup in gas-liquid pipes. This starts with the application of continuity and momentum balance required supplementary relationships close system equations. These additional equations are also called closure which developed experimental results for given conditions. evolved time researchers acquired data under different Unfortunately, new closures conditions rather than universal that can cover wider set situation generates need methodology allows inclusion newly develop increase accuracy unified mechanistic models. paper description all available two-dimension maps facilitate visualization data. determination regions where particular minimize discrepancy between calculated measured parameters. proposes simplification modern solution provide simpler way visualize corresponding The final proposed reveals substantial reduction average model by selecting most appropriate closures.