| Pareto多目标算法在离心压缩机蜗壳优化中的应用 |
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| 引用本文： | 吴亚东,曹安国,刘鹏寅,杜朝辉.Pareto多目标算法在离心压缩机蜗壳优化中的应用[J].航空动力学报,2016,31(1):92-99. |
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| 作者姓名： | 吴亚东 曹安国 刘鹏寅 杜朝辉 |
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| 作者单位： | 1. 上海交通大学 航空航天学院, 上海 200240; |
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| 基金项目： | 国家自然科学基金(11202132); 2011先进航空发动机协同创新计划 |
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| 摘 要： | 基于Pareto多目标算法构建了一套针对离心压缩机蜗壳的气动优化系统,该系统集成了参数化建模、ICEM网格划分、CFX计算和CFD组合优化技术.利用该系统以总压损失系数和静压恢复系数为目标变量针对椭圆截面离心压缩机蜗壳进行气动优化设计.优化后的模型与初始模型相比总压损失系数降低11.79%,静压恢复系数升高16.97%,蜗壳内部二次流减少,蜗壳与叶轮更加匹配,表明该方法能够有效地提高离心压缩机的整体性能.
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| 关 键 词： | Pareto多目标算法 离心压缩机 蜗壳 总压损失 气动优化 |
| 收稿时间： | 2014/5/25 0:00:00 |
Application of Pareto multi-objective algorithm in centrifugal compressor volute optimization |
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| WU Ya-dong,CAO An-guo,LIU Peng-yin and DU Zhao-hui.Application of Pareto multi-objective algorithm in centrifugal compressor volute optimization[J].Journal of Aerospace Power,2016,31(1):92-99. |
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| Authors: | WU Ya-dong CAO An-guo LIU Peng-yin and DU Zhao-hui |
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| Institution: | 1. School of Aeronautics and Astronautics, Shanghai Jiao Tong University, Shanghai 200240, China;2. School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China |
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| Abstract: | A centrifugal compressor aerodynamic optimization system based on Pareto multi-objective algorithm was established.The system integrated the parameterized geometric model, ICEM(integrated computer engineering and manufacturing) mesh generation, CFX(computational fluid dynamics X) computation and CFD combined optimization technique.Using this system, the optimization was implemented for a centrifugal compressor volute, and the total pressure loss coefficient and static pressure recovery coefficient were chosen as target variables.Compared with prototype design, the average total pressure loss coefficient of optimal design decreased by 11.79% and the average static pressure recovery coefficient increased by 16.97%.Meanwhile, the secondary flow inside the volute was reduced to a certain degree, and the volute matched better with the impeller.The results show that the multi-objective optimization system is effective to the performance of the centrifugal compressor. |
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| Keywords: | Pareto multi-objective algorithm centrifugal compressor volute total pressure loss aerodynamic optimization |
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