离心叶轮二元叶片型线的优化设计及分析

推进技术 ›› 2014, Vol. 35 ›› Issue (7): 926-931.

离心叶轮二元叶片型线的优化设计及分析

邓敬亮¹,楚武利^1,2,张皓光¹

西北工业大学动力与能源学院，陕西西安，710072;西北工业大学动力与能源学院，陕西西安，710072; 先进航空发动机协同创新中心，北京 100191;西北工业大学动力与能源学院，陕西西安，710072

发布日期:2021-08-15
作者简介:邓敬亮(1988—)，男，硕士生，研究领域为叶轮机械气动热力学。
基金资助:
国家自然科学基金(51006084)；国家自然科学基金重点项目(51236006)；陕西省自然科学基金(2011JQ7018)；西北工业大学基础研究基金(JC201116)。

Design and Analysis of 2D Blade Profile on a Centrifuge Impeller

School of Power and Energy，Northwestern Polytechnical University，Xi’an 710072，China;School of Power and Energy，Northwestern Polytechnical University，Xi’an 710072，China; Collaborative Innovation Center of Advanced Aero-Engine，Beijing 100191，China;School of Power and Energy，Northwestern Polytechnical University，Xi’an 710072，China

Published:2021-08-15

摘要/Abstract

摘要： 为改善优化离心叶轮的气动性能，提出离心叶轮二元叶片型线的一种优化设计方法，即通过给定流道平均相对速度沿半径的分布规律，在叶轮轮盘轮盖线不变的前提下，设计出一类叶片型线，并利用全三维数值模拟计算得到最佳性能的叶轮。孤立叶轮的计算表明，大部分工况的性能均明显优于原始叶轮，在设计点处效率提高12%，压升提高8.9%，流道中低速区的面积大大减小，静压场分布更加均匀。最佳叶轮配上原始蜗壳进行整机计算，结果表明，设计点效率提高10%以上，且消除了蜗壳出口段的倒流现象，但在大流量工况下压升量有所下降。

关键词: 离心叶轮；二元叶片；叶片设计；数值计算

Abstract: A new method of 2D blade profile design on a centrifugal impeller was proposed to improve the aerodynamic performance of the impeller. The blade profile was designed through full three-dimensional numerical simulation by giving channel average relative velocity distribution along the radius，without changing the profiles of its hub and shroud. The computational results of isolated impeller show that the performance of the new impeller obviously increases in most conditions. Efficiency and pressure rise increase by 12% and 8.9%，respectively，at design point. At the same time，the low-velocity zones are both greatly reduced and the static pressure is uniformly distributed，too. The computational results for the whole fan with the original volute show that the efficiency increases by more than 10% at design point，and the backflow in the outlet section of the volute is eliminated. However，the pressure rise amount decreases in high flow conditions.

Key words: Centrifugal impeller；2D blade；Blade design；Numerical simulation

邓敬亮,楚武利,张皓光. 离心叶轮二元叶片型线的优化设计及分析[J]. 推进技术, 2014, 35(7): 926-931.

DENG Jing-liang¹,CHU Wu-li^1,2,ZHANG Hao-guang¹. Design and Analysis of 2D Blade Profile on a Centrifuge Impeller[J]. Journal of Propulsion Technology, 2014, 35(7): 926-931.

参考文献

[1] 李晓丽, 楚武利, 袁森. 离心风机整机三维数值仿真方法及分析 [J].计算机仿真, 2010, 27(10): 334-338.
[2] Takanori Nagae, Zhiming Zheng. Study of High Efficiency and Low Noise Centrifugal Fan [R].Proceedings of the ASME-JSME-KSME 2011 Joint Fluids Engineering Conference , AJK2011-22047.
[3] Seung Heo, Cheolung Cheong, Tae-Hoon Kim.Development of Low-Noise Centrifugal Fans for a Refrigerator Using Inclined S-Shaped Trailing Edge [J].International Journal of Refrigeration, 2011(34): 2076-2091.
[4] Datong Q, Yijun M, Xiaoliang L, et al.Experimental Study on the Noise Reduction of an Industrial Forward-Curved Blades Centrifugal Fan [J].Applied Acoustics, 2009, 70(8): 1041-1050.
[5] Bayomi N N, Abdel Hafiz A, Osman A M. Effect of Inlet Straighteners on Centrifugal Fan Performance [J].Energy Conversion and Management, 2006, 47(18): 3307-3318.
[6] YANG Ce, LI Zhigang, JIANG Zikang, et al. Numerical Investigation of a High-Speed Centrifugal Compressor Impeller [J].Tsinghua Science and Technology, 1999, 4(4): 1678-1682.
[7] BIAN Xiaodong, TANG Xudong, HUANG Dongtao, et al. Application of Numerical Simulation of the Flow Field of Centrifugal Impellers for Fan Design [J].Tsinghua Science and Technology, 2000, 5(1):82-88.
[8] 高丽敏, 韩伟, 高杰, 等. 用多重网格法数值预测高速离心叶轮三维流场 [J].计算机仿真, 2011, 28(3): 410-413.
[9] Tsai B J, Wu C L. Investigation of a Miniature Centrifugal Fan [J].Applied Thermal Engineering, 2007, 27(1): 229-239.
[10] 卢金铃, 席光, 祁大同. 三元叶轮子午流道和叶片的优化方法 [J].西安交通大学学报, 2005, 39(9): 1021-1025.
[11] Cadirci S, Selenbas B, Gunes H. Optimization of a Centrifugal Fan Impeller Using Kriging Simulated Annealing [C]. Denver: Proceedings of the ASME 2011 International Mechanical Engineering Congress & Exposition, 2011.
[12] Songling Wang, Lei Zhang. Optimization Research of Centrifugal Fan with Different Blade Number and Outlet Blade Angle [C].Wuhan: Power and Energy Engineering Conference, 2009.
[13] 李景银, 牛子宁, 梁亚勋. 可控减速法设计离心风机两元叶片的研究 [J].西安交通大学学报, 2009, 43(9): 67-70.
[14] 祁大同, 李占良. 离心风机叶片型线的一种二维逆命题简便设计方法 [J].应用力学学报, 1994, 11(3):98-102.
[15] 李庆宜. 通风机 [M].北京: 机械工业出版社, 1981. (编辑:朱立影)收稿日期:2013-07-22；修订日期:2013-09-03。基金项目:国家自然科学基金(51006084)；国家自然科学基金重点项目(51236006)；陕西省自然科学基金(2011JQ7018)；西北工业大学基础研究基金(JC201116)。作者简介:邓敬亮(1988—),男,硕士生,研究领域为叶轮机械气动热力学。E-mail:1060408835@qq.com