Study on the Influence of Inducer Structure Change on Pump Cavitation Characteristics
Given that cryogenic pumps on liquefied natural gas (LNG) carriers are prone to cavitation under complex operating conditions, this paper examines the inducer of an LNG centrifugal pump to uncover how the inducer geometry affects both the cavitation behavior and internal flow-induced excitation at −...
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| Format: | Article |
| Language: | English |
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MDPI AG
2025-07-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/18/15/4059 |
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| author | Zhengwei Wang Wei Song Xuanyi Lin Yun Zhao Yonggang Lu |
| author_facet | Zhengwei Wang Wei Song Xuanyi Lin Yun Zhao Yonggang Lu |
| author_sort | Zhengwei Wang |
| collection | DOAJ |
| description | Given that cryogenic pumps on liquefied natural gas (LNG) carriers are prone to cavitation under complex operating conditions, this paper examines the inducer of an LNG centrifugal pump to uncover how the inducer geometry affects both the cavitation behavior and internal flow-induced excitation at −163 °C. Through detailed numerical simulations, we evaluate the cavitation performance and flow excitation characteristics across a range of inducer designs, systematically varying the blade count, inlet and outlet angles, and blade wrap angle. Our results show that reducing the number of blades, together with properly optimized inlet/outlet and wrap angles, significantly enhances the cavitation resistance. These findings provide a solid theoretical basis and practical guidance for the engineering optimization of LNG ship pumps. |
| format | Article |
| id | doaj-art-772bc450cc6e4f36869cb1ee9b23aec0 |
| institution | DOAJ |
| issn | 1996-1073 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj-art-772bc450cc6e4f36869cb1ee9b23aec02025-08-20T03:02:48ZengMDPI AGEnergies1996-10732025-07-011815405910.3390/en18154059Study on the Influence of Inducer Structure Change on Pump Cavitation CharacteristicsZhengwei Wang0Wei Song1Xuanyi Lin2Yun Zhao3Yonggang Lu4State Key Laboratory of Hydro-Science and Engineering, Department of Energy and Power Engineering, Tsinghua University, Beijing 100084, ChinaState Key Laboratory of Hydro-Science and Engineering, Department of Energy and Power Engineering, Tsinghua University, Beijing 100084, ChinaState Key Laboratory of Hydro-Science and Engineering, Department of Energy and Power Engineering, Tsinghua University, Beijing 100084, ChinaState Key Laboratory of Hydro-Science and Engineering, Department of Energy and Power Engineering, Tsinghua University, Beijing 100084, ChinaState Key Laboratory of Hydro-Science and Engineering, Department of Energy and Power Engineering, Tsinghua University, Beijing 100084, ChinaGiven that cryogenic pumps on liquefied natural gas (LNG) carriers are prone to cavitation under complex operating conditions, this paper examines the inducer of an LNG centrifugal pump to uncover how the inducer geometry affects both the cavitation behavior and internal flow-induced excitation at −163 °C. Through detailed numerical simulations, we evaluate the cavitation performance and flow excitation characteristics across a range of inducer designs, systematically varying the blade count, inlet and outlet angles, and blade wrap angle. Our results show that reducing the number of blades, together with properly optimized inlet/outlet and wrap angles, significantly enhances the cavitation resistance. These findings provide a solid theoretical basis and practical guidance for the engineering optimization of LNG ship pumps.https://www.mdpi.com/1996-1073/18/15/4059LNG marine pumpinducercentrifugal pumpcavitation characteristics |
| spellingShingle | Zhengwei Wang Wei Song Xuanyi Lin Yun Zhao Yonggang Lu Study on the Influence of Inducer Structure Change on Pump Cavitation Characteristics Energies LNG marine pump inducer centrifugal pump cavitation characteristics |
| title | Study on the Influence of Inducer Structure Change on Pump Cavitation Characteristics |
| title_full | Study on the Influence of Inducer Structure Change on Pump Cavitation Characteristics |
| title_fullStr | Study on the Influence of Inducer Structure Change on Pump Cavitation Characteristics |
| title_full_unstemmed | Study on the Influence of Inducer Structure Change on Pump Cavitation Characteristics |
| title_short | Study on the Influence of Inducer Structure Change on Pump Cavitation Characteristics |
| title_sort | study on the influence of inducer structure change on pump cavitation characteristics |
| topic | LNG marine pump inducer centrifugal pump cavitation characteristics |
| url | https://www.mdpi.com/1996-1073/18/15/4059 |
| work_keys_str_mv | AT zhengweiwang studyontheinfluenceofinducerstructurechangeonpumpcavitationcharacteristics AT weisong studyontheinfluenceofinducerstructurechangeonpumpcavitationcharacteristics AT xuanyilin studyontheinfluenceofinducerstructurechangeonpumpcavitationcharacteristics AT yunzhao studyontheinfluenceofinducerstructurechangeonpumpcavitationcharacteristics AT yongganglu studyontheinfluenceofinducerstructurechangeonpumpcavitationcharacteristics |