Effects of Hub Radial Portion Scale on Performance of a Double-Sided Centrifugal Compressor Impeller under Un-Equilibrium Inlet Condition

Journal of Propulsion Technology ›› 2013, Vol. 34 ›› Issue (10): 1330-1338.

• Ship Propulsion • Previous Articles Next Articles

Effects of Hub Radial Portion Scale on Performance of a Double-Sided Centrifugal Compressor Impeller under Un-Equilibrium Inlet Condition

School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China;School of Aerospace Scientific Engineering, Beijing Institute of Technology, Beijing 100081, China;School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China;School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China;China North Vehicle Research Institute, Beijing 100072, China;Science and Technology on Diesel Engine Turbocharging Laboratory, China North Engine Research Institute, Datong 037036, China

Published:2021-08-15

基于双吸叶轮两侧非均衡进气研究轮盘凸台尺寸影响

陈山¹,老大中²,赵奔¹,杨策¹,鲍珂³,张继忠⁴

北京理工大学机械与车辆学院,北京 100081;北京理工大学宇航学院,北京 100081;北京理工大学机械与车辆学院,北京 100081;北京理工大学机械与车辆学院,北京 100081;中国北方车辆研究所一部,北京 100072;中国北方发动机研究所柴油机增压技术重点实验室,山西大同 037036

作者简介:陈山(1983—),男,博士生,研究领域为叶片机械流动模拟。E-mail:shanchen@bit.edu.cn
基金资助:
国家自然科学基金项目资助(51276017);教育部博士点基金(20101101110009)。

Abstract

Abstract: To expose the effects of hub radial portion scale in a double-sided centrifugal compressor impeller on performance and inside flow structure, numerical simulation was carried out on a double-sided impeller with five different hub radial portion scales under un-equilibrium inlet condition. The simulation results show that, the hub radial portion is expected to exceed blade trailing edge, from both performance and flow stability standpoint. The best hub radial portion scale should be optimized based on impeller pressure ratio and efficiency performance compromise. The hub radial portion directly affects the double-sided impeller mass flow rate in both sides, hence the impeller performance. Due to the effect on the mass flow rate, different hub radial portion configuration can modify separation flow in downstream diffuser. The minimum hub radial portion impeller configuration tends to make the mass flow rate between front side and rear side unbalanced more easily than any other configurations. 

Key words: Double-sided impeller; Hub radial portion; Un-equilibrium inlet condition; Numerical simulation; Flow characteristic

摘要： 为明确双吸叶轮两侧叶轮之间的径向轮盘凸台尺寸变化对其总体性能及内部流场的影响,探索不同尺寸轮盘结构叶轮的流动损失机理,基于双吸叶轮两侧非均衡进气条件,采用数值方法对五种径向轮盘尺寸双吸叶轮的三维粘性流场进行了模拟研究。研究结果表明:从双吸叶轮最优性能及最高流动稳定性观点出发,均要求两侧叶轮之间的径向轮盘凸台超出叶片尾缘一定范围；具体超出尺寸范围则需要通过对双吸叶轮的压比、效率性能目标进行折衷确定。径向轮盘凸台尺寸的改变明显影响双吸叶轮两侧叶轮的流量分配,进而影响扩压器内分离流动损失大小及双吸叶轮的整体性能。另外,相比于较大径向轮盘凸台,无径向轮盘凸台结构更容易造成双吸叶轮两侧叶轮流量差距悬殊。 

关键词: 双吸叶轮;径向轮盘凸台;非均衡进气;数值模拟;流动特性 

CHEN Shan¹, LAO Da-zhong², ZHAO Ben¹, YANG Ce¹, BAO Ke³, ZHANG Ji-zhong⁴. Effects of Hub Radial Portion Scale on Performance of a Double-Sided Centrifugal Compressor Impeller under Un-Equilibrium Inlet Condition[J]. Journal of Propulsion Technology, 2013, 34(10): 1330-1338.

陈山,老大中,赵奔,杨策,鲍珂,张继忠. 基于双吸叶轮两侧非均衡进气研究轮盘凸台尺寸影响[J]. 推进技术, 2013, 34(10): 1330-1338.

References

[1] Dietz R O, Geisenheyner R M.Investigation of the I-40Jet-Propulsion Engine in the Cleveland Altitude Wind Tunnel II-Analysis of Compressor Performance Characteristics[R].NACA RM-E8G02a, 1948.
[2] Arnold S.Single Sequential Turbocharger:A New Boosting Concept for Ultra-Low Emission Diesel Engines[R].SAE 2008-01-0298.
[3] DeRaad S, Fulton B, Gryglak A, et al.The New Ford 6.7L V-8Turbocharged Diesel Engine[R].SAE 2010-01-1101.
[4] Currie D, Hudson A W, Sexton P.Dual Inlet Turbocharger System for Internal Combustion Engine[P].US:8146359B2,2-04-03.
[5] 张计光, 陈红勋, 马峥, 等.双吸泵内流场的三维数值模拟及流动分析[J].上海大学学报, 2006,2(2):186-190.
[6] 黄艳芬, 赖喜德.基于CFD的某双吸离心泵流道设计[J].农机化研究, 2011,3(5):91-94.
[7] 高江永, 王福军, 瞿丽霞, 等.大型双吸离心泵叶轮动应力特性[J].农业机械学报, 2012,3(1):42-48.
[8] 丛国辉, 王福军.双吸离心泵隔舌区压力脉动特性分析[J].农业机械学报, 2008,9(6):60-67.
[9] Oro J M F, González J, Argüelles Díaz K M, et al.Decomposition of Deterministic Unsteadiness in a Centrifugal Turbomachine:Nonlinear Interactions Between the Impeller Flow and Volute for a Double Suction Pump[J].Journal of Fluids Engineering, 2011,3(1):01103-1-01103-10.
[10] Lei V M.Aerodynamics of a Centrifugal Compressor with a Double Side Impeller[R].ASME 2011-GT-45215.
[11] Lei V M, Nejedly M, Houst V, et al.Dual Boost Compressor Development[C].London:10th International Conference on Turbochargers and Turbocharging, 2012.
[12] 马娟娟, 赵奔, 陈山, 等.双面离心压气机叶轮特性数值研究[J].中国科技论文, 2012,7(11):836-840.
[13] Denton J D.Loss Mechanisms in Turbomachines[J].ASME Journal of Turbomachinery, 1993,5(4):621-656.

Effects of Hub Radial Portion Scale on Performance of a Double-Sided Centrifugal Compressor Impeller under Un-Equilibrium Inlet Condition

基于双吸叶轮两侧非均衡进气研究轮盘凸台尺寸影响

PDF

Knowledge

Cited

Abstract

Cite this article

share this article

References

Related Articles 0

Recommended Articles

Metrics

Comments