Yes / A novel Lattice-Boltzmann model to simulate gas mixing in anaerobic digestion is developed and described. For the first time, Euler–Lagrange multiphase, non-Newtonian and turbulence modelling are applied jontly with a novel hybrid boundary condition. The model is validated in a laboratory-scale framework and flow patterns are assessed through Particle Imaging Velocimetry (PIV) and innovative Positron-Emission Particle Tracking (PEPT). The model is shown to reproduce the experimental flow patterns with fidelity in both qualitative and quantitative terms.
The model opens up a new approach to computational modelling of the complex multiphase flow in anaerobic digesters and offers specific advantages, such as computational efficiency, over an analogous Euler-Lagrange finite-volume computational fluid dynamics approach. / UK EPSRC Grant (EP/R01485X/1, Computational Methods for Anaerobic Digestion Optimization, “CoMAnDO”). The numerical work was performed in the HPC Cirrus EPSRC Tier-2 National HPC Facility, Edinburgh, UK, under a UK EPSRC Tier-2 Research Allocation Panel (RAP) award.
| Identifer | oai:union.ndltd.org:BRADFORD/oai:bradscholars.brad.ac.uk:10454/16751 |
| Date | 18 December 2018 |
| Creators | Dapelo, Davide, Trunk, R., Krause, M.J., Bridgeman, John |
| Source Sets | Bradford Scholars |
| Language | English |
| Detected Language | English |
| Type | Article, Published version |
| Rights | © 2018 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license. (http://creativecommons.org/licenses/by/4.0/ ), CC-BY |
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