On the application of an Eulerian granular model towards dilute phase pneumatic conveying
The present study considered the application of a multiphase model with Eulerian approach for the solids phase in dilute-phase conveying, where the results are compared against previously published experimental results based on 42 μm nominal diameter glass particles. In particular, the Favre-Average...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2019
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| Online Access: | https://hdl.handle.net/10356/88956 http://hdl.handle.net/10220/48338 |
| _version_ | 1826122502391201792 |
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| author | Heng, Jinliang New, Tze How Wilson, P. A. |
| author2 | School of Mechanical and Aerospace Engineering |
| author_facet | School of Mechanical and Aerospace Engineering Heng, Jinliang New, Tze How Wilson, P. A. |
| author_sort | Heng, Jinliang |
| collection | NTU |
| description | The present study considered the application of a multiphase model with Eulerian approach for the solids phase in dilute-phase conveying, where the results are compared against previously published experimental results based on 42 μm nominal diameter glass particles. In particular, the Favre-Averaged Drag turbulent dispersion model is studied where it is found to have greater effects on the particle concentration distribution as compared to the gas phase velocity. While certain discrepancies are observed between simulations and published experimental data, the flow characteristics are adequately captured after addressing the underlying cause of inaccuracies. Inaccuracies in the particle concentration distributions along a vertical pipe section result from the difficulty in capturing the transitional zone where the particle rope starts to disperse. On the other hand, particle diameter variations underpin the mismatches along a horizontal pipe section. Interestingly, increasing the particle diameter leads to the successful capturing of the particle concentration distribution along the horizontal pipe section. The accuracy of employing an Eulerian approach for solids phase is demonstrated, provided that effects due to the particle diameter are accounted for. |
| first_indexed | 2024-10-01T05:49:32Z |
| format | Journal Article |
| id | ntu-10356/88956 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T05:49:32Z |
| publishDate | 2019 |
| record_format | dspace |
| spelling | ntu-10356/889562023-03-04T17:14:57Z On the application of an Eulerian granular model towards dilute phase pneumatic conveying Heng, Jinliang New, Tze How Wilson, P. A. School of Mechanical and Aerospace Engineering Two-phase Flow DRNTU::Engineering::Mechanical engineering Pneumatic Conveying The present study considered the application of a multiphase model with Eulerian approach for the solids phase in dilute-phase conveying, where the results are compared against previously published experimental results based on 42 μm nominal diameter glass particles. In particular, the Favre-Averaged Drag turbulent dispersion model is studied where it is found to have greater effects on the particle concentration distribution as compared to the gas phase velocity. While certain discrepancies are observed between simulations and published experimental data, the flow characteristics are adequately captured after addressing the underlying cause of inaccuracies. Inaccuracies in the particle concentration distributions along a vertical pipe section result from the difficulty in capturing the transitional zone where the particle rope starts to disperse. On the other hand, particle diameter variations underpin the mismatches along a horizontal pipe section. Interestingly, increasing the particle diameter leads to the successful capturing of the particle concentration distribution along the horizontal pipe section. The accuracy of employing an Eulerian approach for solids phase is demonstrated, provided that effects due to the particle diameter are accounted for. Accepted version 2019-05-23T04:33:05Z 2019-12-06T17:14:34Z 2019-05-23T04:33:05Z 2019-12-06T17:14:34Z 2018 Journal Article Heng, J., New, T. H., & Wilson, P. A. (2018). On the application of an Eulerian granular model towards dilute phase pneumatic conveying. Powder Technology, 327, 456-466. doi:10.1016/j.powtec.2017.12.069 0032-5910 https://hdl.handle.net/10356/88956 http://hdl.handle.net/10220/48338 10.1016/j.powtec.2017.12.069 en Powder Technology © 2017 Elsevier B.V. All rights reserved. This paper was published in Powder Technology and is made available with permission of Elsevier B.V. 42 p. application/pdf |
| spellingShingle | Two-phase Flow DRNTU::Engineering::Mechanical engineering Pneumatic Conveying Heng, Jinliang New, Tze How Wilson, P. A. On the application of an Eulerian granular model towards dilute phase pneumatic conveying |
| title | On the application of an Eulerian granular model towards dilute phase pneumatic conveying |
| title_full | On the application of an Eulerian granular model towards dilute phase pneumatic conveying |
| title_fullStr | On the application of an Eulerian granular model towards dilute phase pneumatic conveying |
| title_full_unstemmed | On the application of an Eulerian granular model towards dilute phase pneumatic conveying |
| title_short | On the application of an Eulerian granular model towards dilute phase pneumatic conveying |
| title_sort | on the application of an eulerian granular model towards dilute phase pneumatic conveying |
| topic | Two-phase Flow DRNTU::Engineering::Mechanical engineering Pneumatic Conveying |
| url | https://hdl.handle.net/10356/88956 http://hdl.handle.net/10220/48338 |
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