LAPSE:2020.1180
Published Article
LAPSE:2020.1180
Comprehensive Improvement of Mixed-Flow Pump Impeller Based on Multi-Objective Optimization
Mengcheng Wang, Yanjun Li, Jianpin Yuan, Fan Meng, Desmond Appiah, Jiaqi Chen
December 17, 2020
The spanwise distribution of impeller exit circulation (SDIEC) has a significant effect on the impeller performance, therefore, there is a need for its consideration in the optimization design of mixed-flow pumps. In this study, a combination optimization system, including a 3D inverse design method (IDM), computational fluid dynamics (CFD), Latin hypercube sampling (LHS) method, response surface model (RSM), and non-dominated sorting genetic algorithm (NSGA-Ⅱ) was used to improve the performance of the mixed-flow pump after considering the effect of SDIEC on the performance of the impeller. The CFD results confirm the accuracy and credibility of the optimization results because of the good agreement the CFD results established with the experimental measurements. Compared with the original impeller, the pump efficiency of the preferred impeller at 0.8Qdes, 1.0Qdes, and 1.2Qdes improved by 0.63%, 3.39%, and 3.77% respectively. The low-pressure region on the blade surface reduced by 96.92% while the pump head difference was less than 1.84% at the design point. In addition, a comparison of the flow field of the preferred impeller and the original impeller revealed the effect of SDIEC on mixed-flow pump performance improvement and flow mechanism.
Keywords
3D inverse design, circulation, Computational Fluid Dynamics, mixed-flow pump, multi-objective optimization
Suggested Citation
Wang M, Li Y, Yuan J, Meng F, Appiah D, Chen J. Comprehensive Improvement of Mixed-Flow Pump Impeller Based on Multi-Objective Optimization. (2020). LAPSE:2020.1180
Author Affiliations
Wang M: Research Center of Fluid Machinery Engineering and Technology, Jiangsu University, Zhenjiang 212013, China [ORCID]
Li Y: Research Center of Fluid Machinery Engineering and Technology, Jiangsu University, Zhenjiang 212013, China
Yuan J: Research Center of Fluid Machinery Engineering and Technology, Jiangsu University, Zhenjiang 212013, China
Meng F: Research Center of Fluid Machinery Engineering and Technology, Jiangsu University, Zhenjiang 212013, China
Appiah D: Research Center of Fluid Machinery Engineering and Technology, Jiangsu University, Zhenjiang 212013, China
Chen J: Research Center of Fluid Machinery Engineering and Technology, Jiangsu University, Zhenjiang 212013, China
Journal Name
Processes
Volume
8
Issue
8
Article Number
E905
Year
2020
Publication Date
2020-07-31
Published Version
ISSN
2227-9717
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Original Submission
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PII: pr8080905, Publication Type: Journal Article
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LAPSE:2020.1180
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doi:10.3390/pr8080905
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Dec 17, 2020
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Dec 17, 2020
 
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Calvin Tsay
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