Numerical investigation of the influence of tip clearance and rotor-stator interaction on centrifugal pump performance and cavitation
The influence of tip clearance on pump performance and the impact of the rotor-stator interaction on cavitation are investigated by numerical means, respectively. Firstly, the SST model is employed in numerical anaylsis, and the numerical investigation of the pump performance based on a different tu...
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| Format: | Article |
| Language: | English |
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University North
2017-01-01
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| Series: | Tehnički Glasnik |
| Subjects: | |
| Online Access: | https://hrcak.srce.hr/file/281594 |
| _version_ | 1818309013516845056 |
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| author | Cong Liu |
| author_facet | Cong Liu |
| author_sort | Cong Liu |
| collection | DOAJ |
| description | The influence of tip clearance on pump performance and the impact of the rotor-stator interaction on cavitation are investigated by numerical means, respectively. Firstly, the SST model is employed in numerical anaylsis, and the numerical investigation of the pump performance based on a different turbulence model is compared with the experimental data. Secondly, the pump performance at different tip clearances is investigated, and the numerical results indicate that the smaller tip clearance the better performance of keeping the head stable at a low mass flow rate. Thirdly, as the NPSH-Head curves are computed at different tip clearances, the conclusion can be drawn that the smaller the tip clearance, the stronger the capability of preventing cavitation. Lastly, the effect of the rotor-stator interaction on cavitation is performed at a design case, when the φ = 9°, the volume fraction of cavitation is maximum, however, when the φ = 120°, the volume fraction of cavitation is minimum. Besides, the blade loading is studied at a corresponding φ value. When the φ = 44°， the blade loading is minimum, however, when the φ = 120°, the blade loading is maximum. The cavity all appears from the leading edge to the 20% chord length for a different φ value, which indicates that the cavitation zone grows along the normal direction of the suction surface. |
| first_indexed | 2024-12-13T07:23:25Z |
| format | Article |
| id | doaj.art-47a9db8247ea4350ae6fd8bc71ef67b9 |
| institution | Directory Open Access Journal |
| issn | 1846-6168 1848-5588 |
| language | English |
| last_indexed | 2024-12-13T07:23:25Z |
| publishDate | 2017-01-01 |
| publisher | University North |
| record_format | Article |
| series | Tehnički Glasnik |
| spelling | doaj.art-47a9db8247ea4350ae6fd8bc71ef67b92022-12-21T23:55:21ZengUniversity NorthTehnički Glasnik1846-61681848-55882017-01-01114188194Numerical investigation of the influence of tip clearance and rotor-stator interaction on centrifugal pump performance and cavitationCong Liu0Xuhai College, China University of Mining and Technology, Xuzhou, Jiangsu Province, ChinaThe influence of tip clearance on pump performance and the impact of the rotor-stator interaction on cavitation are investigated by numerical means, respectively. Firstly, the SST model is employed in numerical anaylsis, and the numerical investigation of the pump performance based on a different turbulence model is compared with the experimental data. Secondly, the pump performance at different tip clearances is investigated, and the numerical results indicate that the smaller tip clearance the better performance of keeping the head stable at a low mass flow rate. Thirdly, as the NPSH-Head curves are computed at different tip clearances, the conclusion can be drawn that the smaller the tip clearance, the stronger the capability of preventing cavitation. Lastly, the effect of the rotor-stator interaction on cavitation is performed at a design case, when the φ = 9°, the volume fraction of cavitation is maximum, however, when the φ = 120°, the volume fraction of cavitation is minimum. Besides, the blade loading is studied at a corresponding φ value. When the φ = 44°， the blade loading is minimum, however, when the φ = 120°, the blade loading is maximum. The cavity all appears from the leading edge to the 20% chord length for a different φ value, which indicates that the cavitation zone grows along the normal direction of the suction surface.https://hrcak.srce.hr/file/281594cavitationradial pumprotor-stator interactiontip clearance |
| spellingShingle | Cong Liu Numerical investigation of the influence of tip clearance and rotor-stator interaction on centrifugal pump performance and cavitation Tehnički Glasnik cavitation radial pump rotor-stator interaction tip clearance |
| title | Numerical investigation of the influence of tip clearance and rotor-stator interaction on centrifugal pump performance and cavitation |
| title_full | Numerical investigation of the influence of tip clearance and rotor-stator interaction on centrifugal pump performance and cavitation |
| title_fullStr | Numerical investigation of the influence of tip clearance and rotor-stator interaction on centrifugal pump performance and cavitation |
| title_full_unstemmed | Numerical investigation of the influence of tip clearance and rotor-stator interaction on centrifugal pump performance and cavitation |
| title_short | Numerical investigation of the influence of tip clearance and rotor-stator interaction on centrifugal pump performance and cavitation |
| title_sort | numerical investigation of the influence of tip clearance and rotor stator interaction on centrifugal pump performance and cavitation |
| topic | cavitation radial pump rotor-stator interaction tip clearance |
| url | https://hrcak.srce.hr/file/281594 |
| work_keys_str_mv | AT congliu numericalinvestigationoftheinfluenceoftipclearanceandrotorstatorinteractiononcentrifugalpumpperformanceandcavitation |