Regulating Effect of Asymmetrical Impeller on the Flow Distributions of Double-sided Centrifugal Compressor
-
Ce Yang
,
Yixiong Liu
Abstract
To achieve the rebalance of flow distributions of double-sided impellers, a method of improving the radius of rear impeller is presented in this paper. It is found that the flow distributions of front and rear impeller can be adjusted effectively by increasing the radius of rear impeller, thus improves the balance of flow distributions of front and rear impeller. Meanwhile, the working conversion mode process of double-sided centrifugal compressor is also changed. Further analysis shows that the flowrates of blade channels in front impeller are mainly influenced by the circumferential distributions of static pressure in the volute. But the flowrates of rear impeller blade channels are influenced by the outlet flow field of bent duct besides the effects of static pressure distributions in the volute. In the airflow interaction area downstream, the flowrate of blade channel is obviously smaller. By increasing the radius of rear impeller, the work capacity of rear impeller is enhanced, the working mode conversion process from parallel working mode of double-sided impeller to the single impeller working mode is delayed, and the stable working range of double-sided compressor is broadened.
Funding statement: Supported by the National Natural Science Foundation of China (No.51376024).
References
1. Arnold S. Single sequential turbocharger: A new boosting concept for ultra-low emission diesel engines. SAE Paper, 2008–01–0298, 2008.10.4271/2008-01-0298Search in Google Scholar
2. Deraad S, Fulton B, Gryglak A, Hallgren B, Hudsun A, Ives David, et al. The New Ford 6.7L V-8 Turbocharged Diesel Engine, SAE Technical Paper 2010-01-1101, doi:10.4271/2010–01–1101, 2010.Search in Google Scholar
3. Lei VM. Aerodynamics of a centrifugal compressor with a double side impeller. ASME Paper, GT2011-45215, 2011.10.1115/GT2011-45215Search in Google Scholar
4. Wangxia Wu, Ce Y, Lei J, Dazhong L, Shan C. Investigation of impeller operating mode on dual boost compressor. J Eng Thermophys 2015;36:1658-1611 (In Chinese).Search in Google Scholar
5. Ce Y, Shan C, Ben Z, Chaochen MA. Study on the influence of non-equilibrium inlet condition on the flow loss of the double-sided centrifugal impeller. 2014 Conference of Engineering Thermophysics.Search in Google Scholar
6. Shan C, Dazhong L, Ben Z, Ce Y, Ke B, Jizhong Z. Effects of hub radial portion scale on performance of a double-sided centrifugal compressor impeller under un-equilibrium inlet condition. J Propul Technol 2013;34:1330–9 (In Chinese).Search in Google Scholar
7. Leilei W, Dazhong L, Yixiong L, Ce Y. Non-axisymmetric flow characteristics in centrifugal compressor. J Thermal Sci 2015;24:313–22.10.1007/s11630-015-0790-2Search in Google Scholar
8. Hawley JG, Wallace FJ, Cox A, Horrocks RW, Bird GL. Variable geometry turbocharging for lower emissions and improved torque characteristics. Proc Inst Mech Eng Part D: J Autom Eng 1999;213:145–59.10.1243/0954407991526766Search in Google Scholar
9. Hagelstein D, Van den Braembussche R, Keiper R, Rautenberg M. Experimental investigation of the circumferential static pressure distortion in centrifugal compressor stages, No.97-GT-50, 1997.10.1115/97-GT-050Search in Google Scholar
10. Yang M, Zheng X, Zhang Y, Bamba T, Tamaki H, Huenteler J. Stability improvement of high-pressure-ratio turbocharger centrifugal compressor by asymmetric flow control-part I: Non-axisymmetrical flow in centrifugal compressor. J Turbomach 2013;135:021006-1–9.10.1115/1.4006636Search in Google Scholar PubMed PubMed Central
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Articles in the same Issue
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- Investigation of Engine Oil-cooling Problem during Idle Conditions on Pusher Type Turbo Prop Aircraft
- Regulating Effect of Asymmetrical Impeller on the Flow Distributions of Double-sided Centrifugal Compressor
- Numerical Prediction of the Influence of Thrust Reverser on Aeroengine’s Aerodynamic Stability
- Performance Evaluation of an Experimental Turbojet Engine
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Articles in the same Issue
- Frontmatter
- Expanded R&D by Jet-engine-steering Revolution
- Scientific Paper
- Switching LPV Control with Double-Layer LPV Model for Aero-Engines
- On-Board Real-Time Optimization Control for Turbo-Fan Engine Life Extending
- Investigation of Engine Oil-cooling Problem during Idle Conditions on Pusher Type Turbo Prop Aircraft
- Regulating Effect of Asymmetrical Impeller on the Flow Distributions of Double-sided Centrifugal Compressor
- Numerical Prediction of the Influence of Thrust Reverser on Aeroengine’s Aerodynamic Stability
- Performance Evaluation of an Experimental Turbojet Engine
- The Design and Semi-Physical Simulation Test of Fault-Tolerant Controller for Aero Engine
- The Ignition of Two Phase Detonation by a Branching Detonation Tube
- Tab Geometry Effect on Supersonic Elliptic Jet Control
