Numerical simulation of two-phase separation in T-junction with experimental validation
Liquid carryover in T-junction due to splitting nature of two-phase flow causes serious issues for downstream equipment which is not designed to handle excessive liquid. In this paper, the phenomena of liquid carryover in T-junctions were analyzed using the Volume of Fraction (VOF) together with the...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Universiti Malaysia Pahang Publishing
2018-12-01
|
| Series: | Journal of Mechanical Engineering and Sciences |
| Subjects: | |
| Online Access: | https://journal.ump.edu.my/jmes/article/view/554 |
| _version_ | 1797694236207874048 |
|---|---|
| author | Minh Tran Zeeshan Memon Ahmed Saieed William Pao Fakhruldin Hashim |
| author_facet | Minh Tran Zeeshan Memon Ahmed Saieed William Pao Fakhruldin Hashim |
| author_sort | Minh Tran |
| collection | DOAJ |
| description | Liquid carryover in T-junction due to splitting nature of two-phase flow causes serious issues for downstream equipment which is not designed to handle excessive liquid. In this paper, the phenomena of liquid carryover in T-junctions were analyzed using the Volume of Fraction (VOF) together with the k-ε turbulence model. T-junction separation efficiency was measured through mass flow rate fraction of air and water between the branch and main arm over a range of diameter ratios 0.6 to 1.0, water superficial velocity 0.186 to 0.558 m/s and air superficial velocity 4 to 8 m/s. The results showed simulation model was successfully validated with average deviation of less than 5% and can be used to predict phase split of slug flow in T-junction. The numerical model confirmed the significant influence of diameter ratio and superficial velocities of air and water on phase split. Reduced T-junction delivers better separation performance compared to regular T-junction. In slug flow regime, T-junction’s performance can be improved by either decreasing air velocity or increasing water velocity. A new dimensionless parameter, namely the area under the curve of separation efficiency (S), was proposed and proved as a qualified judging criteria for evaluating phase separation efficiency of T-junctions. |
| first_indexed | 2024-03-12T02:55:02Z |
| format | Article |
| id | doaj.art-3fa2714dc7df4124a7457aa5d9039c58 |
| institution | Directory Open Access Journal |
| issn | 2289-4659 2231-8380 |
| language | English |
| last_indexed | 2024-03-12T02:55:02Z |
| publishDate | 2018-12-01 |
| publisher | Universiti Malaysia Pahang Publishing |
| record_format | Article |
| series | Journal of Mechanical Engineering and Sciences |
| spelling | doaj.art-3fa2714dc7df4124a7457aa5d9039c582023-09-03T15:21:15ZengUniversiti Malaysia Pahang PublishingJournal of Mechanical Engineering and Sciences2289-46592231-83802018-12-011244216423010.15282/jmes.12.4.2018.17.0363Numerical simulation of two-phase separation in T-junction with experimental validationMinh Tran 0Zeeshan Memon 1Ahmed Saieed 2William Pao3Fakhruldin Hashim 4Faculty of Mechanical Engineering, Universiti Teknologi PETRONAS 32610 Seri Iskandar, Perak, MalaysiaFaculty of Mechanical Engineering, Universiti Teknologi PETRONAS 32610 Seri Iskandar, Perak, MalaysiaFaculty of Mechanical Engineering, Universiti Teknologi PETRONAS 32610 Seri Iskandar, Perak, Malaysia Faculty of Mechanical Engineering, Universiti Teknologi PETRONAS 32610 Seri Iskandar, Perak, MalaysiaFaculty of Mechanical Engineering, Universiti Teknologi PETRONAS 32610 Seri Iskandar, Perak, MalaysiaLiquid carryover in T-junction due to splitting nature of two-phase flow causes serious issues for downstream equipment which is not designed to handle excessive liquid. In this paper, the phenomena of liquid carryover in T-junctions were analyzed using the Volume of Fraction (VOF) together with the k-ε turbulence model. T-junction separation efficiency was measured through mass flow rate fraction of air and water between the branch and main arm over a range of diameter ratios 0.6 to 1.0, water superficial velocity 0.186 to 0.558 m/s and air superficial velocity 4 to 8 m/s. The results showed simulation model was successfully validated with average deviation of less than 5% and can be used to predict phase split of slug flow in T-junction. The numerical model confirmed the significant influence of diameter ratio and superficial velocities of air and water on phase split. Reduced T-junction delivers better separation performance compared to regular T-junction. In slug flow regime, T-junction’s performance can be improved by either decreasing air velocity or increasing water velocity. A new dimensionless parameter, namely the area under the curve of separation efficiency (S), was proposed and proved as a qualified judging criteria for evaluating phase separation efficiency of T-junctions.https://journal.ump.edu.my/jmes/article/view/554two-phase separationt-junctionnumerical simulationslug flow |
| spellingShingle | Minh Tran Zeeshan Memon Ahmed Saieed William Pao Fakhruldin Hashim Numerical simulation of two-phase separation in T-junction with experimental validation Journal of Mechanical Engineering and Sciences two-phase separation t-junction numerical simulation slug flow |
| title | Numerical simulation of two-phase separation in T-junction with experimental validation |
| title_full | Numerical simulation of two-phase separation in T-junction with experimental validation |
| title_fullStr | Numerical simulation of two-phase separation in T-junction with experimental validation |
| title_full_unstemmed | Numerical simulation of two-phase separation in T-junction with experimental validation |
| title_short | Numerical simulation of two-phase separation in T-junction with experimental validation |
| title_sort | numerical simulation of two phase separation in t junction with experimental validation |
| topic | two-phase separation t-junction numerical simulation slug flow |
| url | https://journal.ump.edu.my/jmes/article/view/554 |
| work_keys_str_mv | AT minhtran numericalsimulationoftwophaseseparationintjunctionwithexperimentalvalidation AT zeeshanmemon numericalsimulationoftwophaseseparationintjunctionwithexperimentalvalidation AT ahmedsaieed numericalsimulationoftwophaseseparationintjunctionwithexperimentalvalidation AT williampao numericalsimulationoftwophaseseparationintjunctionwithexperimentalvalidation AT fakhruldinhashim numericalsimulationoftwophaseseparationintjunctionwithexperimentalvalidation |