Inverse Method of Centrifugal Pump Impeller Based on Proper Orthogonal Decomposition (POD) Method | |
Zhang, Ren-Hui1,2; Guo, Rong2; Yang, Jun-Hu2; Luo, Jia-Qi3 | |
刊名 | CHINESE JOURNAL OF MECHANICAL ENGINEERING
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2017-07 | |
卷号 | 30期号:4页码:1025-1031 |
关键词 | Centrifugal impeller Proper orthogonal decomposition Inverse method Snapshot sets |
ISSN号 | 1000-9345 |
DOI | 10.1007/s10033-017-0137-x |
英文摘要 | To improve the accuracy and reduce the calculation cost for the inverse problem of centrifugal pump impeller, the new inverse method based on proper orthogonal decomposition (POD) is proposed. The pump blade shape is parameterized by quartic Bezier curve, and the initial snapshots is generated by introducing the perturbation of the blade shape control parameters. The internal flow field and its hydraulic performance is predicted by CFD method. The snapshots vector includes the blade shape parameter and the distribution of blade load. The POD basis for the snapshots set are deduced by proper orthogonal decomposition. The sample vector set is expressed in terms of the linear combination of the orthogonal basis. The objective blade shape corresponding to the objective distribution of blade load is obtained by least square fit. The Iterative correction algorithm for the centrifugal pump blade inverse method based on POD is proposed. The objective blade load distributions are corrected according to the difference of the CFD result and the POD result. The two dimensional and three dimensional blade calculation cases show that the proposed centrifugal pump blade inverse method based on POD have good convergence and high accuracy, and the calculation cost is greatly reduced. After two iterations, the deviation of the blade load and the pump hydraulic performance are limited within 4.0% and 6.0% individually for most of the flow rate range. This paper provides a promising inverse method for centrifugal pump impeller, which will benefit the hydraulic optimization of centrifugal pump. |
资助项目 | National Key Research and Development Program of China[20016YFB0200901] |
WOS研究方向 | Engineering |
语种 | 英语 |
出版者 | EDITORIAL OFFICE CHINESE JOURNAL MECHANICAL ENGINEERING |
WOS记录号 | WOS:000404646100025 |
状态 | 已发表 |
内容类型 | 期刊论文 |
源URL | [http://119.78.100.223/handle/2XXMBERH/33214] ![]() |
专题 | 能源与动力工程学院 |
通讯作者 | Zhang, Ren-Hui |
作者单位 | 1.Key Lab Fluid Machinery & Syst, Lanzhou 730050, Gansu, Peoples R China 2.Lanzhou Univ Technol, Sch Energy & Power Engn, Lanzhou 730050, Peoples R China 3.Peking Univ, Coll Engn, Beijing 100871, Peoples R China |
推荐引用方式 GB/T 7714 | Zhang, Ren-Hui,Guo, Rong,Yang, Jun-Hu,et al. Inverse Method of Centrifugal Pump Impeller Based on Proper Orthogonal Decomposition (POD) Method[J]. CHINESE JOURNAL OF MECHANICAL ENGINEERING,2017,30(4):1025-1031. |
APA | Zhang, Ren-Hui,Guo, Rong,Yang, Jun-Hu,&Luo, Jia-Qi.(2017).Inverse Method of Centrifugal Pump Impeller Based on Proper Orthogonal Decomposition (POD) Method.CHINESE JOURNAL OF MECHANICAL ENGINEERING,30(4),1025-1031. |
MLA | Zhang, Ren-Hui,et al."Inverse Method of Centrifugal Pump Impeller Based on Proper Orthogonal Decomposition (POD) Method".CHINESE JOURNAL OF MECHANICAL ENGINEERING 30.4(2017):1025-1031. |
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