Abstract
The calculations of friction pressure drop is the most complicated in multiphase flow. Understanding of the friction pressure drop in pipes are of great importance for many industry problems. The existing friction pressure drop models are generally based on low gas and liquid velocities in horizontal and vertical pipes. In this paper, a two-phase flow experiment in inclined pipe was performed. We report the effect of superficial gas and liquid velocities on friction pressure drop, the results indicate that the pressure drop increases with the increase in superficial gas velocity and superficial liquid velocity. According to the experimental analysis and assuming that the fluid in contact with the pipe wall at high velocity is in a liquid phase, we developed a new friction pressure drop model of different flow pattern. This model based on the correlation between the fraction factor and the superficial gas and superficial liquid Reynold numbers. Compared with the previous models, the predictive performance of the present model is good and remains basically stable.
Highlights
Gas-liquid two-phase flow can be found in petroleum, chemistry, nuclear power, aerospace and other industries (Xue et al, 2014)
To obtain an accurate model for the prediction of the friction pressure drop at higher superficial liquid gas and velocities that are applicable to different angles, an air-water two-phase flow experiment was performed on a multiphase flow experimental platform at Yangtze University
With the increase in superficial liquid velocity, the increased pressure causes the liquid at the bottom of the pipe to rise along the pipe wall, and more liquid will adhere to the upper pipe wall
Summary
Gas-liquid two-phase flow can be found in petroleum, chemistry, nuclear power, aerospace and other industries (Xue et al, 2014). The research on the friction pressure drop is mainly concentrated in horizontal and vertical pipes, and few studies considered the effect of the inclination angle. The friction pressure drop is the total energy loss in horizontal pipes; Quibén and Thome (2007a, 2007b) proposed a new two-phase frictional prediction method, which was only valid for horizontal pipes In this model, the interfacial structure and local flow patterns were considered. To obtain an accurate model for the prediction of the friction pressure drop at higher superficial liquid gas and velocities that are applicable to different angles, an air-water two-phase flow experiment was performed on a multiphase flow experimental platform at Yangtze University. The effect of different factors on the friction pressure drop under the experimental conditions was obtained by analyzing the experimental data
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
