Analysis of Stress–Strain Characteristics and Signal Coherence of Low-Specific-Speed Impeller Based on Fluid–Structure Interaction
In this study, an analysis of a low-specific-speed pump is carried out based on the methods of one-way and two-way fluid–structure interactions (FSIs). This study analyzes the influence of FSIs on the internal flow field and external characteristics of the pump. Utilizing a two-way FSI, the signal c...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-12-01
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| Series: | Journal of Marine Science and Engineering |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2077-1312/12/1/2 |
| _version_ | 1797343375224995840 |
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| author | Fengquan Qiao Yi Sun Di Zhu Mingkun Fang Fangfang Zhang Ran Tao Ruofu Xiao |
| author_facet | Fengquan Qiao Yi Sun Di Zhu Mingkun Fang Fangfang Zhang Ran Tao Ruofu Xiao |
| author_sort | Fengquan Qiao |
| collection | DOAJ |
| description | In this study, an analysis of a low-specific-speed pump is carried out based on the methods of one-way and two-way fluid–structure interactions (FSIs). This study analyzes the influence of FSIs on the internal flow field and external characteristics of the pump. Utilizing a two-way FSI, the signal coherence analysis method is employed to analyze the coherence of signals between the flow field and the structural field. Addressing the issue of a lack of a connection between the two signals, this study bridges a gap in the existing research. The results indicate that different interaction methods have certain influences on impeller stress and deformation. However, in both coupling modes, the maximum deformation and the maximum equivalent stress have the same distribution position. The head error obtained using the two-way coupling method is lower than that of the uncoupled results, which indicates that the two-way FSI calculation results are closer to the experimental results. The pressure pulsation signals at the interface of the impeller and volute exhibit strong coherence with the structural field signals. For low-specific-speed centrifugal pumps, establishing a clear connection between the flow field signals and structural field signals will help guide further optimization of their performance through design. |
| first_indexed | 2024-03-08T10:46:43Z |
| format | Article |
| id | doaj.art-e600fb58baeb4b15a5044480d51cea33 |
| institution | Directory Open Access Journal |
| issn | 2077-1312 |
| language | English |
| last_indexed | 2024-03-08T10:46:43Z |
| publishDate | 2023-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Marine Science and Engineering |
| spelling | doaj.art-e600fb58baeb4b15a5044480d51cea332024-01-26T17:12:30ZengMDPI AGJournal of Marine Science and Engineering2077-13122023-12-01121210.3390/jmse12010002Analysis of Stress–Strain Characteristics and Signal Coherence of Low-Specific-Speed Impeller Based on Fluid–Structure InteractionFengquan Qiao0Yi Sun1Di Zhu2Mingkun Fang3Fangfang Zhang4Ran Tao5Ruofu Xiao6Jiangsu Pumping Station Technology Co., Ltd. of South-to-North Water Diversion Project, Yangzhou 225000, ChinaJiangsu Pumping Station Technology Co., Ltd. of South-to-North Water Diversion Project, Yangzhou 225000, ChinaCollege of Engineering, China Agricultural University, Beijing 100083, ChinaCollege of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, ChinaCollege of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, ChinaCollege of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, ChinaCollege of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, ChinaIn this study, an analysis of a low-specific-speed pump is carried out based on the methods of one-way and two-way fluid–structure interactions (FSIs). This study analyzes the influence of FSIs on the internal flow field and external characteristics of the pump. Utilizing a two-way FSI, the signal coherence analysis method is employed to analyze the coherence of signals between the flow field and the structural field. Addressing the issue of a lack of a connection between the two signals, this study bridges a gap in the existing research. The results indicate that different interaction methods have certain influences on impeller stress and deformation. However, in both coupling modes, the maximum deformation and the maximum equivalent stress have the same distribution position. The head error obtained using the two-way coupling method is lower than that of the uncoupled results, which indicates that the two-way FSI calculation results are closer to the experimental results. The pressure pulsation signals at the interface of the impeller and volute exhibit strong coherence with the structural field signals. For low-specific-speed centrifugal pumps, establishing a clear connection between the flow field signals and structural field signals will help guide further optimization of their performance through design.https://www.mdpi.com/2077-1312/12/1/2low-specific-speed centrifugal pumpcomputer fluid dynamicsfluid–structure interactionmodal analysiscoherence analysis |
| spellingShingle | Fengquan Qiao Yi Sun Di Zhu Mingkun Fang Fangfang Zhang Ran Tao Ruofu Xiao Analysis of Stress–Strain Characteristics and Signal Coherence of Low-Specific-Speed Impeller Based on Fluid–Structure Interaction Journal of Marine Science and Engineering low-specific-speed centrifugal pump computer fluid dynamics fluid–structure interaction modal analysis coherence analysis |
| title | Analysis of Stress–Strain Characteristics and Signal Coherence of Low-Specific-Speed Impeller Based on Fluid–Structure Interaction |
| title_full | Analysis of Stress–Strain Characteristics and Signal Coherence of Low-Specific-Speed Impeller Based on Fluid–Structure Interaction |
| title_fullStr | Analysis of Stress–Strain Characteristics and Signal Coherence of Low-Specific-Speed Impeller Based on Fluid–Structure Interaction |
| title_full_unstemmed | Analysis of Stress–Strain Characteristics and Signal Coherence of Low-Specific-Speed Impeller Based on Fluid–Structure Interaction |
| title_short | Analysis of Stress–Strain Characteristics and Signal Coherence of Low-Specific-Speed Impeller Based on Fluid–Structure Interaction |
| title_sort | analysis of stress strain characteristics and signal coherence of low specific speed impeller based on fluid structure interaction |
| topic | low-specific-speed centrifugal pump computer fluid dynamics fluid–structure interaction modal analysis coherence analysis |
| url | https://www.mdpi.com/2077-1312/12/1/2 |
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