排灌机械工程学报2024，Vol.42Issue(4)：325-332,8.DOI:10.3969/j.issn.1674-8530.22.0142
基于高维混合模型的离心泵叶轮子午面优化设计
Optimization design of meridional surface of centrifugal pump impeller based on high-dimensional hybrid model
摘要
Abstract
In order to improve the operation efficiency and head of centrifugal pumps under the design conditions,a centrifugal pump impeller optimization design method based on high-dimensional hybrid model was proposed.A single-stage centrifugal pump with specific speed of 157 was selected as the re-search object for this study.The optimization variables were parameterized in CFturbo software,and then combined with numerical simulation to obtain the training set of the high-dimensional hybrid model.By using MATLAB machine learning on the obtained training set,a high-dimensional support vector regression model between efficiency,head and optimization parameters was obtained,and a ge-netic algorithm was used for the optimization.Under the design working conditions,the predicted effi-ciency and head values of the fitted high-dimensional hybrid model are 1.5%and 3.2 m higher than the original model,respectively.The efficiency and head values of the optimized scheme verified by nu-merical simulation are 0.9%and 2.1 m higher than the original model,respectively.This case study shows that the application of a high-dimensional hybrid model in the optimal design of a centrifugal pump impeller can achieve rapid optimization and improve the hydraulic performance of the centrifugal pump.关键词
离心泵/遗传算法/优化设计/支持向量机/混合模型/数值模拟Key words
centrifugal pump/genetic algorithm/optimal design/support vector machine/hybrid model/numerical simulation分类
农业科技引用本文复制引用
张金凤,俞鑫厚,高淑瑜,曹璞钰,张文佳..基于高维混合模型的离心泵叶轮子午面优化设计[J].排灌机械工程学报,2024,42(4):325-332,8.基金项目
江苏省重点研发计划项目(BE2019009) （BE2019009）
