Effect of Fine Particle on the Characteristics of Gas-Liquid Two-Phase Slug Flows in a Vertical Pipe (3rd Rep., Effect of Particle Diameter)

摘要

In the recent decade, LDV, PIV and some methods using ultrasonic sound have been employed to measure multiphase flows. Fine particles are usually added into flows as tracer or scattering particles. The size of these particles ranges from several to several hundred micros. The effect of particles mixed in on the flow characteristics is, however, not examined in detail. Therefore, in this study, we measured some parameters to investigate the effect of fine particles mixed into gas-liquid two-phase slug flows. Polyethylene particles of 10.6 and 180μm mean diameter were used. In this report, the effect of particle diameter on the observation and measuring results are presented. It was found that the effect is so various.