Euler-Lagrange Computational Fluid Dynamics simulation of a full-scale unconfined anaerobic digester for wastewater sludge treatment
dc.contributor.author | Dapelo, Davide | |
dc.contributor.author | Bridgeman, John | |
dc.date.accessioned | 2020-06-22T16:26:30Z | |
dc.date.accessioned | 2020-07-29T14:21:42Z | |
dc.date.available | 2020-06-22T16:26:30Z | |
dc.date.available | 2020-07-29T14:21:42Z | |
dc.date.issued | 2018-03 | |
dc.identifier.citation | Dapelo D and Bridgeman J (2018) Euler-Lagrange Computational Fluid Dynamics simulation of a full-scale unconfined anaerobic digester for wastewater sludge treatment. Advances in Engineering Software. 117: 153-169. | en_US |
dc.identifier.uri | http://hdl.handle.net/10454/17925 | |
dc.description | Yes | en_US |
dc.description.abstract | For the first time, an Euler-Lagrange model for Computational Fluid Dynamics (CFD) is used to model a full-scale gas-mixed anaerobic digester. The design and operation parameters of a digester from a wastewater treatment works are modelled, and mixing is assessed through a novel, multi-facetted approach consisting of the simultaneous analysis of (i) velocity, shear rate and viscosity flow patterns, (ii) domain characterization following the average shear rate value, and (iii) concentration of a non-diffusive scalar tracer. The influence of sludge’s non-Newtonian behaviour on flow patterns and its consequential impact on mixing quality were discussed for the first time. Recommendations to enhance mixing effectiveness are given: (i) a lower gas mixing input power can be used in the digester modelled within this work without a significant change in mixing quality, and (ii) biogas injection should be periodically switched between different nozzle series placed at different distances from the centre. | en_US |
dc.description.sponsorship | The first author is funded via a University of Birmingham Postgraduate Teaching Assistantship award. | en_US |
dc.language.iso | en | en_US |
dc.relation.isreferencedby | https://doi.org/10.1016/j.advengsoft.2017.08.009 | en_US |
dc.rights | © 2017 Elsevier Ltd. All rights reserved. Reproduced in accordance with the publisher's self-archiving policy. This manuscript version is made available under the CC-BY-NC-ND 4.0 license. | en_US |
dc.subject | Wastewater | en_US |
dc.subject | Sludge | en_US |
dc.subject | CFD | en_US |
dc.subject | Euler-Lagrangian | en_US |
dc.subject | Non-Newtonian fluid | en_US |
dc.subject | Turbulence | en_US |
dc.subject | Energy | en_US |
dc.title | Euler-Lagrange Computational Fluid Dynamics simulation of a full-scale unconfined anaerobic digester for wastewater sludge treatment | en_US |
dc.status.refereed | Yes | en_US |
dc.date.Accepted | 2017-08-15 | |
dc.date.application | 2017-08-18 | |
dc.type | Article | en_US |
dc.type.version | Accepted manuscript | en_US |
dc.date.updated | 2020-06-22T15:26:32Z | |
refterms.dateFOA | 2020-07-29T14:22:26Z |