Wolde, B., Mortimer, L.F. and Fairweather, M. (2023) Prediction of critical deposition velocities in particleladen horizontal turbulent pipe flows. In: 10th International Symposium on Turbulence, Heat and Mass Transfer, THMT-23, Rome, Italy, 11-15 September 2023. The Tenth International Symposium on Turbulence, Heat and Mass Transfer, 11-15 Sep 2023, Rome, Italy. Begell House Inc. ISBN 978-1-56700-534-9
Abstract
Particle-laden turbulent pipe flows are studied using direct numerical simulation of the continuous phase in combination with Lagrangian particle tracking (LPT) to determine critical deposition velocities at four particle Stokes numbers. The work was carried out using the computational fluid dynamic solver, Nek5000, enhanced with a four-way coupled LPT to enable high-fidelity modelling of particle-laden pipe flows. The results indicate that at high Stokes numbers, the particle dispersion function and mean vertical displacement values fall quickly, with the formation of particle beds. However, at lower Stokes number thinner dune-like structures are formed. It is determined that using a volume-coverage percentage in the near-wall region of the lower half of the pipe to identify the onset of deposition provides good agreement with experimental data and an empirical correlation for the critical deposition velocity. Insight into the migratory behaviour of the solid phase is determined through additional analysis of the particle dynamics.
Metadata
Item Type: | Proceedings Paper |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | This item is protected by copyright. This is an author produced version of a conference paper published in 10th International Symposium on Turbulence, Heat and Mass Transfer, THMT-23, Rome, Italy, 11-15 September 2023. Uploaded in accordance with the publisher's self-archiving policy. |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Chemical & Process Engineering (Leeds) |
Funding Information: | Funder Grant number EPSRC (Engineering and Physical Sciences Research Council) EP/S01019X/1 |
Depositing User: | Symplectic Publications |
Date Deposited: | 06 Nov 2023 11:54 |
Last Modified: | 30 Sep 2024 00:13 |
Published Version: | https://www.dl.begellhouse.com/references/1bb33165... |
Status: | Published |
Publisher: | Begell House Inc. |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:204912 |