Optimization of a Screw Centrifugal Blood Pump Based on Random Forest and Multi-Objective Gray Wolf Optimization Algorithm
The centrifugal blood pump is a commonly used ventricular assist device. It can replace part of the heart function, pumping blood throughout the body in order to maintain normal function. However, the high shear stress caused by the impeller rotating at high speeds can lead to hemolysis and, as a co...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-02-01
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| Series: | Micromachines |
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| Online Access: | https://www.mdpi.com/2072-666X/14/2/406 |
| _version_ | 1797619254079520768 |
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| author | Teng Jing Haoran Sun Jianan Cheng Ling Zhou |
| author_facet | Teng Jing Haoran Sun Jianan Cheng Ling Zhou |
| author_sort | Teng Jing |
| collection | DOAJ |
| description | The centrifugal blood pump is a commonly used ventricular assist device. It can replace part of the heart function, pumping blood throughout the body in order to maintain normal function. However, the high shear stress caused by the impeller rotating at high speeds can lead to hemolysis and, as a consequence, to stroke and other syndromes. Therefore, reducing the hemolysis level while ensuring adequate pressure generation is key to the optimization of centrifugal blood pumps. In this study, a screw centrifugal blood pump was used as the research object. In addition, pressure generation and the hemolysis level were optimized simultaneously using a coupled algorithm composed of random forest (RF) and multi-objective gray wolf optimization (MOGWO). After verifying the prediction accuracy of the algorithm, three optimized models were selected and compared with the baseline model in terms of pressure cloud, 2D streamline, SSS distribution, HI distribution, and vortex distribution. Finally, via a comprehensive evaluation, the optimized model was selected as the final optimization design, in which the pressure generation increased by 24% and the hemolysis value decreased by 48%. |
| first_indexed | 2024-03-11T08:24:31Z |
| format | Article |
| id | doaj.art-ae177ebc73e944f0903d44e47bdf9c69 |
| institution | Directory Open Access Journal |
| issn | 2072-666X |
| language | English |
| last_indexed | 2024-03-11T08:24:31Z |
| publishDate | 2023-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Micromachines |
| spelling | doaj.art-ae177ebc73e944f0903d44e47bdf9c692023-11-16T22:11:48ZengMDPI AGMicromachines2072-666X2023-02-0114240610.3390/mi14020406Optimization of a Screw Centrifugal Blood Pump Based on Random Forest and Multi-Objective Gray Wolf Optimization AlgorithmTeng Jing0Haoran Sun1Jianan Cheng2Ling Zhou3Research Center of Fluid Machinery Engineering & Technology, Jiangsu University, Zhenjiang 212013, ChinaResearch Center of Fluid Machinery Engineering & Technology, Jiangsu University, Zhenjiang 212013, ChinaResearch Center of Fluid Machinery Engineering & Technology, Jiangsu University, Zhenjiang 212013, ChinaResearch Center of Fluid Machinery Engineering & Technology, Jiangsu University, Zhenjiang 212013, ChinaThe centrifugal blood pump is a commonly used ventricular assist device. It can replace part of the heart function, pumping blood throughout the body in order to maintain normal function. However, the high shear stress caused by the impeller rotating at high speeds can lead to hemolysis and, as a consequence, to stroke and other syndromes. Therefore, reducing the hemolysis level while ensuring adequate pressure generation is key to the optimization of centrifugal blood pumps. In this study, a screw centrifugal blood pump was used as the research object. In addition, pressure generation and the hemolysis level were optimized simultaneously using a coupled algorithm composed of random forest (RF) and multi-objective gray wolf optimization (MOGWO). After verifying the prediction accuracy of the algorithm, three optimized models were selected and compared with the baseline model in terms of pressure cloud, 2D streamline, SSS distribution, HI distribution, and vortex distribution. Finally, via a comprehensive evaluation, the optimized model was selected as the final optimization design, in which the pressure generation increased by 24% and the hemolysis value decreased by 48%.https://www.mdpi.com/2072-666X/14/2/406centrifugal blood pumprandom forest (RF)numerical simulationmulti-objective gray wolf optimization (MOGWO)hemolysisscalar shear stress |
| spellingShingle | Teng Jing Haoran Sun Jianan Cheng Ling Zhou Optimization of a Screw Centrifugal Blood Pump Based on Random Forest and Multi-Objective Gray Wolf Optimization Algorithm Micromachines centrifugal blood pump random forest (RF) numerical simulation multi-objective gray wolf optimization (MOGWO) hemolysis scalar shear stress |
| title | Optimization of a Screw Centrifugal Blood Pump Based on Random Forest and Multi-Objective Gray Wolf Optimization Algorithm |
| title_full | Optimization of a Screw Centrifugal Blood Pump Based on Random Forest and Multi-Objective Gray Wolf Optimization Algorithm |
| title_fullStr | Optimization of a Screw Centrifugal Blood Pump Based on Random Forest and Multi-Objective Gray Wolf Optimization Algorithm |
| title_full_unstemmed | Optimization of a Screw Centrifugal Blood Pump Based on Random Forest and Multi-Objective Gray Wolf Optimization Algorithm |
| title_short | Optimization of a Screw Centrifugal Blood Pump Based on Random Forest and Multi-Objective Gray Wolf Optimization Algorithm |
| title_sort | optimization of a screw centrifugal blood pump based on random forest and multi objective gray wolf optimization algorithm |
| topic | centrifugal blood pump random forest (RF) numerical simulation multi-objective gray wolf optimization (MOGWO) hemolysis scalar shear stress |
| url | https://www.mdpi.com/2072-666X/14/2/406 |
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