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Modelling Multiphase Flow in Vertical Pipe Using CFD Method

  • David Alaita
  • Mamdud Hossain
  • Sheikh Zahidul Islam
Conference paper
Part of the Lecture Notes in Mechanical Engineering book series (LNME)

Abstract

Investigations of gas-liquid-solid flows in large diameter vertical pipes are scarce and detailed three phase flow study is still required to understand the flow interactions. Further investigation using high fidelity modelling is thus necessary due to complex flow interactions of the phases.

In this study, a Computational Fluid Dynamics (CFD) method is used to investigate multiphase gas-liquid-solid flow in vertical pipe. Firstly, an appropriate validated numerical simulation scheme for two phase gas-liquid flow using ANSYS Fluent has been used to simulate possible flow regime transitions in vertical pipe. The scheme could predict the various flow regimes spanning bubbly to annular flow without prior knowledge of the flow patterns.

The scheme was further extended to investigate the impact of solid particles in the flow field. More importantly the impact of solid concentration on the flow regime development and sand deposition was investigated. The results showed that the particulate deposition is greatly influenced by the particle concentration. In addition, the regime transitions and development in gas-liquid flows are different than that of gas-liquid-solid flows.

Keywords

Vertical pipe simulation Sand transport Interfacial area concentration Mass flux Large diameter pipe Solids deposition Gas-liquid-solids Fluidization CFD Multi-fluid VOF 

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Copyright information

© Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  • David Alaita
    • 1
  • Mamdud Hossain
    • 1
  • Sheikh Zahidul Islam
    • 1
  1. 1.School of EngineeringRobert Gordon UniversityAberdeenUK

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