Wang, L.G., Litster, J.D. and Smith, R.M. orcid.org/0000-0003-2340-0042 (2023) A novel oblique impact model for unified particle breakage master curve. Chemical Engineering Science, 268. 118397. ISSN 0009-2509
Abstract
Many experimental and numerical studies have been performed on the impact breakage of particulate solids, leading to a variety of impact breakage models developed to predict breakage probability. Ideally, impact breakage models would be mechanistic in nature, mathematically simple and inclusive of critical breakage parameters. In this paper, a critical review of the most widely used impact breakage models is presented, with the conclusion that the majority of existing breakage models inadequately predict breakage probability under oblique impact. In this work, a novel oblique impact model is proposed where the effect of impact angle is considered by the equivalent velocity. A breakage database compiled from the literature is deployed to interrogate the validity of the proposed model across a variety of oblique impact circumstances. In this way, the new oblique impact model is shown to provide excellent predictions of breakage probability, requiring only one set of fitting parameters under various impact angles. The unique feature of this oblique impact model is not necessarily required to be used with any specific normal impact breakage models, but can instead be universally applied with any of the assessed normal impact breakage models to establish unified breakage master curves for any oblique impact.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2022 Elsevier. This is an author produced version of a paper subsequently published in Chemical Engineering Science. Uploaded in accordance with the publisher's self-archiving policy. Article available under the terms of the CC-BY-NC-ND licence (https://creativecommons.org/licenses/by-nc-nd/4.0/). |
Keywords: | Oblique impact model; Breakage model assessment; Unified master curve; Impact angle; Equivalent velocity |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Chemical and Biological Engineering (Sheffield) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 13 Mar 2023 14:56 |
Last Modified: | 19 Dec 2023 01:13 |
Status: | Published |
Publisher: | Elsevier BV |
Refereed: | Yes |
Identification Number: | 10.1016/j.ces.2022.118397 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:197247 |
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Filename: A Novel Oblique Impact Model for Unified Particle Breakage Master Curve Accepted Manuscript.pdf
Licence: CC-BY-NC-ND 4.0