The calculation on liquid holdup in horizontal gasliquid two-phase annular flow

Liquid holdup is one of the important parameters in the calculation of multiphase flow, annular flow is a common flow regime in the condensating natural gas pipeline. In this paper, based the momentum equation, combined with pig experimental data of gas-liquid two-phase annular flow in large-scale loop, calculated the theoretical liquid holdup. The calculated theoretical data and experimental date were compared and analyzed, the results showed that theory and experiment had a good agreement, thus the experimental and theoretical calculation methods on liquid holdup of gas-liquid two-phase annular flow phase were established.