Flow Structures in Vertical Solid-liquid Two-phase Flow under Microgravity Environment

"2nd Report, Analysis of Phase Distribution Characteristics"

Abstract

Radial distributions of solid-water flows in a 9 mm-diameter pipe were measured by a stereo image-processing method and a hough transform method at normal- and micro-gravity conditions. The flow measurements were performed at an axial locations (axial distance from the inlet normalized by the pipe diameter=40) under various flow conditions of superficial liquid velocity (0.355-1.59 m/s). The effect of gravity on phase distribution patterns was discussed based on the obtained experimental data.