Euler-Lagrange CFD modelling of unconfined gas mixing in anaerobic digestion

Davide Dapelo, Federico Alberini, Jonathan Bridgeman

Research output: Contribution to journalArticlepeer-review

41 Citations (Scopus)
250 Downloads (Pure)

Abstract

A novel Euler-Lagrangian (EL) computational fluid dynamics (CFD) finite volume-based model to simulate the gas mixing of sludge for anaerobic digestion is developed and described. Fluid motion is driven by momentum transfer from bubbles to liquid. Model validation is undertaken by assessing the flow field in a labscale model with particle image velocimetry (PIV). Conclusions are drawn about the upscaling and applicability of the model to full-scale problems, and recommendations are given for optimum application.
Original languageEnglish
Pages (from-to)497-511
JournalWater Research
Volume85
Early online date6 Sep 2015
DOIs
Publication statusPublished - 15 Nov 2015

Keywords

  • CFD
  • Euler–Lagrangian
  • Anaerobic digestion
  • Non-Newtonian fluid
  • Gas mixing
  • PIV

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