Numerical investigation of wavy-annular airwater two-pase flow in a small horizontal pipe

摘要

This study has been carried out using Computational Fluid Dynamics (CFD) to investigate the annularudtwo phase flow behavior that flow pattern has some desirable features for renewable energy systemudapplication. The circumferential distribution of the liquid film in a small diameter horizontal pipe (ID =ud8.8mm) is non-uniform owing to gravitational force, where liquid film is thicker at the bottom than that atudthe top. In a wavy-annular flow regime, large amplitude waves formed at the gas-liquid interface hasudplayed a significant role to replenish the top liquid film.