The flow pattern of solid-liquid two-phase slurry containing a large number of suspended particles

such as ice slurry

in the pipeline determines its resistance characteristics. The study of its flow characteristics is of great significance for ensuring the safety

energy conservation

and prevention of blockages in slurry transportation systems. Focusing on the critical Reynolds number of slurry flow transition

the flow characteristics of the slurry in the transition zone and the effects of solid content

particle size and pipe diameter on the flow characteristics of the slurry in the transition zone are studied experimentally. The results show that the critical Reynolds number increases with the increase of solid content

while the critical Reynolds number decreases with the increase of pipe diameter and particle size. At low Reynolds number

the higher the solid content is

the higher the resistance coefficient is. At high Reynolds number

the slurry is more similar to Newtonian fluid. However

when the slurry is in the transition region

the resistance coefficient increases first and then decreases with the Reynolds number.