Purvis, J., Mortimer, L.F., Anderson, J.P. et al. (1 more author) (2023) Fully resolved binary particle interactions in isotropic turbulence using hard and soft sphere collision models. 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
Binary particle collisions have been studied using hard and soft sphere collision models in both stagnant fluid and boxes of homogeneous isotropic turbulence. Particle-fluid coupling was achieved using a ghost-cell immersed boundary method coupled with the spectral element method-based direct numerical simulation solver, Nek5000. The turbulent box was obtained using the stochastic forcing technique with a Reynolds number based on the Taylor microscale Reλ ≈ 2.5, chosen to represent the viscous sublayer in a Reτ = 180 channel flow. Results in stagnant boxes indicate that discrepancies between the two models increase at velocities close to the agglomeration-rebound transition region, though fair agreement between the two models is observed for Monte Carlo-based simulations in homogeneous isotropic turbulence, with the soft sphere model more likely to predict agglomeration given a single collision event.
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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. | ||||
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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) | ||||
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Depositing User: | Symplectic Publications | ||||
Date Deposited: | 06 Nov 2023 11:58 | ||||
Last Modified: | 09 Feb 2024 12:01 | ||||
Published Version: | https://www.dl.begellhouse.com/references/1bb33165... | ||||
Status: | Published | ||||
Publisher: | Begell House Inc. |
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Filename: 240 THMT23 Purvis et al.pdf