Slug Regime Transitions in a Two-Phase Flow in Horizontal Round Pipe. CFD Simulations
The main objective of the study is to propose a technical solution integrated into the pipeline for the transition of the flow regime from slug to bubbly two-phase flow. The object of research is isothermal two-phase gas–Newtonian-liquid flow in a horizontal circular pipeline. There is local resista...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2020-12-01
|
| Series: | Applied Sciences |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2076-3417/10/23/8739 |
| _version_ | 1797416218302349312 |
|---|---|
| author | Vitaly Sergeev Nikolai Vatin Evgeny Kotov Darya Nemova Svyatoslav Khorobrov |
| author_facet | Vitaly Sergeev Nikolai Vatin Evgeny Kotov Darya Nemova Svyatoslav Khorobrov |
| author_sort | Vitaly Sergeev |
| collection | DOAJ |
| description | The main objective of the study is to propose a technical solution integrated into the pipeline for the transition of the flow regime from slug to bubbly two-phase flow. The object of research is isothermal two-phase gas–Newtonian-liquid flow in a horizontal circular pipeline. There is local resistance in the pipe in the form of a streamlined transverse mesh partition. The mesh partition ensures the transition of the flow from the slug regime to the bubbly regime. The purpose of the study is to propose a technical solution integrated into the pipeline for changing the flow regime of a two-phase flow from slug to bubbly flow. The method of research is a simulation using computational fluid dynamics (CFD) numerical simulation. The Navier–Stokes equations averaged by Reynolds describes the fluid motion. The <i>k-ε</i> models were used to close the Reynolds-averaged Navier–Stokes (RANS) equations. The computing cluster «Polytechnic—RSK Tornado» was used to solve the tasks. The results of simulation show that pressure drop on the grid did not exceed 10% of the pressure drop along the length of the pipeline. The mesh partition transits the flow regime from slug to layered one, which will help to increase the service life and operational safety of a real pipeline at insignificant energy costs to overcome the additional resistance integrated into the pipeline. |
| first_indexed | 2024-03-09T06:00:17Z |
| format | Article |
| id | doaj.art-8eb2d519771b49f5a4104525f2cdf462 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-09T06:00:17Z |
| publishDate | 2020-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-8eb2d519771b49f5a4104525f2cdf4622023-12-03T12:09:31ZengMDPI AGApplied Sciences2076-34172020-12-011023873910.3390/app10238739Slug Regime Transitions in a Two-Phase Flow in Horizontal Round Pipe. CFD SimulationsVitaly Sergeev0Nikolai Vatin1Evgeny Kotov2Darya Nemova3Svyatoslav Khorobrov4Institute of Civil Engineering, Peter the Great Saint Petersburg Polytechnic University, 195251 Saint Petersburg, RussiaInstitute of Civil Engineering, Peter the Great Saint Petersburg Polytechnic University, 195251 Saint Petersburg, RussiaInstitute of Civil Engineering, Peter the Great Saint Petersburg Polytechnic University, 195251 Saint Petersburg, RussiaInstitute of Civil Engineering, Peter the Great Saint Petersburg Polytechnic University, 195251 Saint Petersburg, RussiaInstitute of Civil Engineering, Peter the Great Saint Petersburg Polytechnic University, 195251 Saint Petersburg, RussiaThe main objective of the study is to propose a technical solution integrated into the pipeline for the transition of the flow regime from slug to bubbly two-phase flow. The object of research is isothermal two-phase gas–Newtonian-liquid flow in a horizontal circular pipeline. There is local resistance in the pipe in the form of a streamlined transverse mesh partition. The mesh partition ensures the transition of the flow from the slug regime to the bubbly regime. The purpose of the study is to propose a technical solution integrated into the pipeline for changing the flow regime of a two-phase flow from slug to bubbly flow. The method of research is a simulation using computational fluid dynamics (CFD) numerical simulation. The Navier–Stokes equations averaged by Reynolds describes the fluid motion. The <i>k-ε</i> models were used to close the Reynolds-averaged Navier–Stokes (RANS) equations. The computing cluster «Polytechnic—RSK Tornado» was used to solve the tasks. The results of simulation show that pressure drop on the grid did not exceed 10% of the pressure drop along the length of the pipeline. The mesh partition transits the flow regime from slug to layered one, which will help to increase the service life and operational safety of a real pipeline at insignificant energy costs to overcome the additional resistance integrated into the pipeline.https://www.mdpi.com/2076-3417/10/23/8739two-phase flowtwo-phase flow regimesregime transitionspipe flowoil pipelineplug flow |
| spellingShingle | Vitaly Sergeev Nikolai Vatin Evgeny Kotov Darya Nemova Svyatoslav Khorobrov Slug Regime Transitions in a Two-Phase Flow in Horizontal Round Pipe. CFD Simulations Applied Sciences two-phase flow two-phase flow regimes regime transitions pipe flow oil pipeline plug flow |
| title | Slug Regime Transitions in a Two-Phase Flow in Horizontal Round Pipe. CFD Simulations |
| title_full | Slug Regime Transitions in a Two-Phase Flow in Horizontal Round Pipe. CFD Simulations |
| title_fullStr | Slug Regime Transitions in a Two-Phase Flow in Horizontal Round Pipe. CFD Simulations |
| title_full_unstemmed | Slug Regime Transitions in a Two-Phase Flow in Horizontal Round Pipe. CFD Simulations |
| title_short | Slug Regime Transitions in a Two-Phase Flow in Horizontal Round Pipe. CFD Simulations |
| title_sort | slug regime transitions in a two phase flow in horizontal round pipe cfd simulations |
| topic | two-phase flow two-phase flow regimes regime transitions pipe flow oil pipeline plug flow |
| url | https://www.mdpi.com/2076-3417/10/23/8739 |
| work_keys_str_mv | AT vitalysergeev slugregimetransitionsinatwophaseflowinhorizontalroundpipecfdsimulations AT nikolaivatin slugregimetransitionsinatwophaseflowinhorizontalroundpipecfdsimulations AT evgenykotov slugregimetransitionsinatwophaseflowinhorizontalroundpipecfdsimulations AT daryanemova slugregimetransitionsinatwophaseflowinhorizontalroundpipecfdsimulations AT svyatoslavkhorobrov slugregimetransitionsinatwophaseflowinhorizontalroundpipecfdsimulations |