Experimental Study on Flow Behavior of Unshrouded Impeller Centrifugal Pumps under Inlet Air Entrainment Condition
Results on overall pump head and efficiency performance, pressure pulsation and high speed camera visualization of flow patterns behavior are presented for different inlet air-water void fractions at a given rotational speed. With the increase of inlet void fractions and decrease of the flow rates,...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-07-01
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| Series: | International Journal of Turbomachinery, Propulsion and Power |
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| Online Access: | https://www.mdpi.com/2504-186X/6/3/31 |
| _version_ | 1797518803115966464 |
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| author | Minquan Liao Qiaorui Si Meng Fan Peng Wang Zhonghai Liu Shouqi Yuan Qianglei Cui Gérard Bois |
| author_facet | Minquan Liao Qiaorui Si Meng Fan Peng Wang Zhonghai Liu Shouqi Yuan Qianglei Cui Gérard Bois |
| author_sort | Minquan Liao |
| collection | DOAJ |
| description | Results on overall pump head and efficiency performance, pressure pulsation and high speed camera visualization of flow patterns behavior are presented for different inlet air-water void fractions at a given rotational speed. With the increase of inlet void fractions and decrease of the flow rates, the size of bubbles increase and tend to agglomerate in specific impeller passage locations along the blade chord. The starting point of pump breakdown is related to a strong inward reverse flow occurring in a specific location near the shroud gap of the impeller and volute tongue region. Using a constant air void fraction value of 2%, pressure pulsation frequency results are analyzed in relation with local flow mixture patterns and flow rate modification. |
| first_indexed | 2024-03-10T07:34:38Z |
| format | Article |
| id | doaj.art-3da5a31a60f04e19b0c9f6e3c31b5b54 |
| institution | Directory Open Access Journal |
| issn | 2504-186X |
| language | English |
| last_indexed | 2024-03-10T07:34:38Z |
| publishDate | 2021-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | International Journal of Turbomachinery, Propulsion and Power |
| spelling | doaj.art-3da5a31a60f04e19b0c9f6e3c31b5b542023-11-22T13:34:21ZengMDPI AGInternational Journal of Turbomachinery, Propulsion and Power2504-186X2021-07-01633110.3390/ijtpp6030031Experimental Study on Flow Behavior of Unshrouded Impeller Centrifugal Pumps under Inlet Air Entrainment ConditionMinquan Liao0Qiaorui Si1Meng Fan2Peng Wang3Zhonghai Liu4Shouqi Yuan5Qianglei Cui6Gérard Bois7National Research Center of Pumps, Jiangsu University, Zhenjiang 212013, ChinaNational Research Center of Pumps, Jiangsu University, Zhenjiang 212013, ChinaLMFL, FRE CNRS 3723, Arts et Métiers Paris Tech, 59046 Lille, FranceNational Research Center of Pumps, Jiangsu University, Zhenjiang 212013, ChinaChangsha Dewater Machanical Technology Co., Ltd., Changsha 410100, ChinaNational Research Center of Pumps, Jiangsu University, Zhenjiang 212013, ChinaNational Research Center of Pumps, Jiangsu University, Zhenjiang 212013, ChinaLMFL, FRE CNRS 3723, Arts et Métiers Paris Tech, 59046 Lille, FranceResults on overall pump head and efficiency performance, pressure pulsation and high speed camera visualization of flow patterns behavior are presented for different inlet air-water void fractions at a given rotational speed. With the increase of inlet void fractions and decrease of the flow rates, the size of bubbles increase and tend to agglomerate in specific impeller passage locations along the blade chord. The starting point of pump breakdown is related to a strong inward reverse flow occurring in a specific location near the shroud gap of the impeller and volute tongue region. Using a constant air void fraction value of 2%, pressure pulsation frequency results are analyzed in relation with local flow mixture patterns and flow rate modification.https://www.mdpi.com/2504-186X/6/3/31centrifugal pumptwo-phase flow patternpressure pulsationvisualization |
| spellingShingle | Minquan Liao Qiaorui Si Meng Fan Peng Wang Zhonghai Liu Shouqi Yuan Qianglei Cui Gérard Bois Experimental Study on Flow Behavior of Unshrouded Impeller Centrifugal Pumps under Inlet Air Entrainment Condition International Journal of Turbomachinery, Propulsion and Power centrifugal pump two-phase flow pattern pressure pulsation visualization |
| title | Experimental Study on Flow Behavior of Unshrouded Impeller Centrifugal Pumps under Inlet Air Entrainment Condition |
| title_full | Experimental Study on Flow Behavior of Unshrouded Impeller Centrifugal Pumps under Inlet Air Entrainment Condition |
| title_fullStr | Experimental Study on Flow Behavior of Unshrouded Impeller Centrifugal Pumps under Inlet Air Entrainment Condition |
| title_full_unstemmed | Experimental Study on Flow Behavior of Unshrouded Impeller Centrifugal Pumps under Inlet Air Entrainment Condition |
| title_short | Experimental Study on Flow Behavior of Unshrouded Impeller Centrifugal Pumps under Inlet Air Entrainment Condition |
| title_sort | experimental study on flow behavior of unshrouded impeller centrifugal pumps under inlet air entrainment condition |
| topic | centrifugal pump two-phase flow pattern pressure pulsation visualization |
| url | https://www.mdpi.com/2504-186X/6/3/31 |
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