Modeling of Liquid Film Behavior in Serpentine Pipe Geometry

Abstract

This study investigates the behavior of liquid film thickness along a flow system under varying gas and liquid velocities. The collected data from film probes positioned at various locations of the test facility, were matched with different experimental works using the available models. It was obviously observed that the majority of published correlations didn’t present good accuracy for the data of this study, where the pipe diameter is relatively large (i.d.=101.6 mm). However, these models gave better predictions for the data of small-sized pipes (i.d. ≤ 50 mm). Due to this reason, it was necessary to modify some of the published models in order to be fit for all pipe diameters. The modified models were applied for the experimental data of the current study and for those available in a literature which presented accurate results for estimation of liquid film characteristics.