Comparison of experimental and Computational Fluid Dynamics (CFD) studies of slug flow in a vertical riser
This paper presents a comparison of the results obtained from experiments and CFD studies of slug flow in a vertical riser. A series of two experimental investigations were carried out on a 6 m vertical pipe with a 0.067 m internal diameter charged with an air–silicone oil mixture. For the first set...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Published: |
Elsevier
2015
|
| Subjects: | |
| Online Access: | https://eprints.nottingham.ac.uk/35515/ |
| _version_ | 1848795096359632896 |
|---|---|
| author | Abdulkadir, M. Hernandez-Perez, V. Lo, S. Lowndes, Ian Azzopardi, Barry J. |
| author_facet | Abdulkadir, M. Hernandez-Perez, V. Lo, S. Lowndes, Ian Azzopardi, Barry J. |
| author_sort | Abdulkadir, M. |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | This paper presents a comparison of the results obtained from experiments and CFD studies of slug flow in a vertical riser. A series of two experimental investigations were carried out on a 6 m vertical pipe with a 0.067 m internal diameter charged with an air–silicone oil mixture. For the first set of experiments, the riser was initially full of air, and then liquid and gas flows set to liquid and gas superficial velocities = 0.05 and 0.344 m/s, respectively, electrical capacitance tomography (ECT) and wire mesh sensor (WMS) transducers were employed. In the second one, the riser was initially full of (static) liquid, and then liquid and gas flows set to liquid and gas superficial velocities = 0.05 and 0.344 m/s, respectively, only ECT was used. A characterisation of the observed slug flow regimes was carried out. This includes the evaluation of the instantaneous distribution of the phases over the pipe cross-section, the Probability Density Function (PDF) of void fraction, time series of cross-sectional void fraction, Power Spectral Density (PSD), structure velocity of the Taylor bubble, lengths of the liquid slug and Taylor bubble and void fractions in the liquid slug and Taylor bubble. The simulation results were validated both qualitatively and quantitatively against experimental data. A reasonably good agreement was observed between the results of the experiment and CFD. |
| first_indexed | 2025-11-14T19:26:39Z |
| format | Article |
| id | nottingham-35515 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:26:39Z |
| publishDate | 2015 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-355152020-05-04T17:11:07Z https://eprints.nottingham.ac.uk/35515/ Comparison of experimental and Computational Fluid Dynamics (CFD) studies of slug flow in a vertical riser Abdulkadir, M. Hernandez-Perez, V. Lo, S. Lowndes, Ian Azzopardi, Barry J. This paper presents a comparison of the results obtained from experiments and CFD studies of slug flow in a vertical riser. A series of two experimental investigations were carried out on a 6 m vertical pipe with a 0.067 m internal diameter charged with an air–silicone oil mixture. For the first set of experiments, the riser was initially full of air, and then liquid and gas flows set to liquid and gas superficial velocities = 0.05 and 0.344 m/s, respectively, electrical capacitance tomography (ECT) and wire mesh sensor (WMS) transducers were employed. In the second one, the riser was initially full of (static) liquid, and then liquid and gas flows set to liquid and gas superficial velocities = 0.05 and 0.344 m/s, respectively, only ECT was used. A characterisation of the observed slug flow regimes was carried out. This includes the evaluation of the instantaneous distribution of the phases over the pipe cross-section, the Probability Density Function (PDF) of void fraction, time series of cross-sectional void fraction, Power Spectral Density (PSD), structure velocity of the Taylor bubble, lengths of the liquid slug and Taylor bubble and void fractions in the liquid slug and Taylor bubble. The simulation results were validated both qualitatively and quantitatively against experimental data. A reasonably good agreement was observed between the results of the experiment and CFD. Elsevier 2015-06-09 Article PeerReviewed Abdulkadir, M., Hernandez-Perez, V., Lo, S., Lowndes, Ian and Azzopardi, Barry J. (2015) Comparison of experimental and Computational Fluid Dynamics (CFD) studies of slug flow in a vertical riser. Experimental Thermal and Fluid Science, 68 . pp. 468-483. ISSN 0894-1777 CFD ECT VOF Slug Flow Air-silicone Oil Riser PDF Void Fraction PSD Taylor Bubble Length Velocity http://www.sciencedirect.com/science/article/pii/S0894177715001533 doi:10.1016/j.expthermflusci.2015.06.004 doi:10.1016/j.expthermflusci.2015.06.004 |
| spellingShingle | CFD ECT VOF Slug Flow Air-silicone Oil Riser Void Fraction PSD Taylor Bubble Length Velocity Abdulkadir, M. Hernandez-Perez, V. Lo, S. Lowndes, Ian Azzopardi, Barry J. Comparison of experimental and Computational Fluid Dynamics (CFD) studies of slug flow in a vertical riser |
| title | Comparison of experimental and Computational Fluid Dynamics (CFD) studies of slug flow in a vertical riser |
| title_full | Comparison of experimental and Computational Fluid Dynamics (CFD) studies of slug flow in a vertical riser |
| title_fullStr | Comparison of experimental and Computational Fluid Dynamics (CFD) studies of slug flow in a vertical riser |
| title_full_unstemmed | Comparison of experimental and Computational Fluid Dynamics (CFD) studies of slug flow in a vertical riser |
| title_short | Comparison of experimental and Computational Fluid Dynamics (CFD) studies of slug flow in a vertical riser |
| title_sort | comparison of experimental and computational fluid dynamics (cfd) studies of slug flow in a vertical riser |
| topic | CFD ECT VOF Slug Flow Air-silicone Oil Riser Void Fraction PSD Taylor Bubble Length Velocity |
| url | https://eprints.nottingham.ac.uk/35515/ https://eprints.nottingham.ac.uk/35515/ https://eprints.nottingham.ac.uk/35515/ |