ABSTRACT

Bubbly flow experiments are conducted in a 25.4 mm ID pipe to investigate the behaviour of friction factor, radial void fraction and the momentum flux. The purpose of this work is to present experimental data on bubbly flow which can serve as a standard against the prediction models. Despite the fact that the homogeneous model produces reasonably good predictions of pressure drop, improved models are required taking into account the radial distributions of bubble velocity and void fraction.