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- Title
轴流泵叶片的参数化造型及多参数优化.
- Authors
夏水晶; 袁建平; 孙潇; 周帮伦; 李彦军
- Abstract
In order to achieve automatic optimization of hydraulic performance for axial-flow pumps,a platform is developed to enable geometrical model update,mesh generation,numerical simulation and data input and output to be carried out automatically. To avoid problems raised in the iteration of blade geometry in traditional optimization methods,a parametric modeling approach is proposed for axial-flow pump impellers,based on parametric analysis on inlet and outlet angles and the blade thickness profile in the circular arc airfoil method to realize a control on the shape of blade just with a few geometrical parameters. The optimization method is applied to an axial-ffow pump with a specific speed of ns = 1 500 by taking the hydraulic efficiency as the objective function. The inlet and outlet blade angles are chosen as the optimized variables and the pump head is used as a constraint condition. The results show that the best hydraulic efficiency is improved to 82. 4-% from 80. 4% at the design flow rate after 500 times iteration cycles,but the hydraulic efficiency is also overall improved in the operating condition of 0. 8()bep to 1. 2()bep as well. The optimization approach presented here provides some reference for optimization and its applications of hydraulic machinery.
- Subjects
PARAMETRIC modeling; MATHEMATICAL optimization; PERFORMANCE of axial flow pumps; GEOMETRIC modeling; HYDRAULIC machinery
- Publication
Journal of Drainage & Irrigation Machinery Engineering / Paiguan Jixie Gongcheng Xuebao, 2016, Vol 34, Issue 7, p597
- ISSN
1674-8530
- Publication type
Article
- DOI
10.3969/j.issn.1674-8530.15.021