Wolde, B., Mortimer, L.F. and Fairweather, M. (Cover date: July 2023) Stokes Number Effects on Deposition in Particle‐Laden Turbulent Pipe Flows. Chemical Engineering & Technology, 46 (7). pp. 1351-1361. ISSN 0930-7516
Abstract
The ability to predict particle dispersion, interaction, and deposition in turbulent pipes is of value in improving the transport and process efficiency of high concentration particulate flows. In this work, the settling and deposition behavior of suspensions of dense particles in a cylindrical pipe has been studied using direct numerical simulation coupled with Lagrangian particle tracking, with the influence of Stokes number on deposition behavior examined. From the analysis performed, it can be concluded that particle deposition is sensitive to Stokes number. In particular, the dispersion function and mean vertical displacement of the particles are demonstrated to decrease considerably faster with time at the higher Stokes number. Particle migration towards the lower wall regions of the pipe also shows the formation of a solid bed of these particles, whilst over the same time period only dune-like structures are produced at the lower Stokes number. Further analysis of the particle dynamics confirms these findings and generates insight into the particle dynamics within the deposition regions.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2023 The Authors. Chemical Engineering & Technology published by Wiley-VCH GmbH. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
Keywords: | Direct numerical simulation; Lagrangian particle tracking; Particle deposition; Stokes number |
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) |
Depositing User: | Symplectic Publications |
Date Deposited: | 01 Nov 2023 16:26 |
Last Modified: | 01 Nov 2023 16:26 |
Status: | Published |
Publisher: | Wiley |
Identification Number: | 10.1002/ceat.202200606 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:204759 |