Abstract
The erosion of particles is one of the main reasons of damage to the multiphase flow pipelines in black water treatment systems. In this study, the particle erosion of liquid–solid–gas multiphase bubble flow in a horizontal-vertical-upward elbow was analysed. The optical microscope, scanning electron microscope (SEM) and white light interference microscope were used for detection of failed pipe samples. An erosion simulation method based on the volume of fluid (VOF) model and discrete phase model (DPM) was adopted to study the influencing factors on the erosion. The results showed that the particles and bubbles lead to lots of pits and furrows on the pipe surfaces, and the erosion at the outer elbow is relatively severe due to the effect of multiphase bubble flow. The most severe damage occurred at θ = 25° of the elbow, and erosion rate is positively correlated with the particle diameter, volume fraction and inlet velocity.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
