Characterization of bubbly flow through the fusion of multiple features extracted from high speed images

Multiphase founds several applications in different industries. Due to complex flow structure, characterization of multiphase flow is different from that of single phase flow. In the present communication, parametric study of air water two phase flow in a 50mm vertical conduit has been performed through rigorous image processing. Only bubbly flow has been considered for the present study. Variation of void fraction, bubble number, bubble shape with time and air flow rate has been estimated by frame by frame processing of high speed videos. Statistical analysis of the time series of these parameters has also been performed to characterize bubbly flow with different air flow rate.