Numerical modelling of the rise of Taylor bubbles through a change in pipe diameter
The rise of Taylor bubbles through expansions in vertical pipes is modelled using Computational Fluid Dynamics. The predictions from the models are compared against existing experimental work and show good agreement, both quantitatively and qualitatively. Many workers, including the present work, fi...
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| Format: | Article |
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Elsevier
2017
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| Online Access: | https://eprints.nottingham.ac.uk/40267/ |
| _version_ | 1848796021347319808 |
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| author | Ambrose, Stephen Lowndes, Ian S. Hargreaves, David Azzopardi, Barry |
| author_facet | Ambrose, Stephen Lowndes, Ian S. Hargreaves, David Azzopardi, Barry |
| author_sort | Ambrose, Stephen |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | The rise of Taylor bubbles through expansions in vertical pipes is modelled using Computational Fluid Dynamics. The predictions from the models are compared against existing experimental work and show good agreement, both quantitatively and qualitatively. Many workers, including the present work, find that, as the bubble passes through the expansion, it will either remain intact or split into one or more daughter bubbles. We find that the critical length of bubble, defined as the maximum length that will pass through intact, is proportional to the cosecant of the angle of the expansion. Further, we show that for an abrupt expansion, the critical bubble length became unaffected by the walls of the upper pipe as the diameter was increased. |
| first_indexed | 2025-11-14T19:41:21Z |
| format | Article |
| id | nottingham-40267 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:41:21Z |
| publishDate | 2017 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-402672020-05-04T18:42:41Z https://eprints.nottingham.ac.uk/40267/ Numerical modelling of the rise of Taylor bubbles through a change in pipe diameter Ambrose, Stephen Lowndes, Ian S. Hargreaves, David Azzopardi, Barry The rise of Taylor bubbles through expansions in vertical pipes is modelled using Computational Fluid Dynamics. The predictions from the models are compared against existing experimental work and show good agreement, both quantitatively and qualitatively. Many workers, including the present work, find that, as the bubble passes through the expansion, it will either remain intact or split into one or more daughter bubbles. We find that the critical length of bubble, defined as the maximum length that will pass through intact, is proportional to the cosecant of the angle of the expansion. Further, we show that for an abrupt expansion, the critical bubble length became unaffected by the walls of the upper pipe as the diameter was increased. Elsevier 2017-04-22 Article PeerReviewed Ambrose, Stephen, Lowndes, Ian S., Hargreaves, David and Azzopardi, Barry (2017) Numerical modelling of the rise of Taylor bubbles through a change in pipe diameter. Computers and Fluids, 148 . pp. 10-25. ISSN 1879-0747 Numerical Simulation Taylor Bubble change in geometry oscillations CFD http://www.sciencedirect.com/science/article/pii/S0045793017300361 doi:10.1016/j.compfluid.2017.01.023 doi:10.1016/j.compfluid.2017.01.023 |
| spellingShingle | Numerical Simulation Taylor Bubble change in geometry oscillations CFD Ambrose, Stephen Lowndes, Ian S. Hargreaves, David Azzopardi, Barry Numerical modelling of the rise of Taylor bubbles through a change in pipe diameter |
| title | Numerical modelling of the rise of Taylor bubbles through a change in pipe diameter |
| title_full | Numerical modelling of the rise of Taylor bubbles through a change in pipe diameter |
| title_fullStr | Numerical modelling of the rise of Taylor bubbles through a change in pipe diameter |
| title_full_unstemmed | Numerical modelling of the rise of Taylor bubbles through a change in pipe diameter |
| title_short | Numerical modelling of the rise of Taylor bubbles through a change in pipe diameter |
| title_sort | numerical modelling of the rise of taylor bubbles through a change in pipe diameter |
| topic | Numerical Simulation Taylor Bubble change in geometry oscillations CFD |
| url | https://eprints.nottingham.ac.uk/40267/ https://eprints.nottingham.ac.uk/40267/ https://eprints.nottingham.ac.uk/40267/ |