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Numerical Simulation Study on Optimization Design of High Efficiency and Low Noise Centrifugal Fan

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DOI: 10.23977/jpim.2022.020104 | Downloads: 78 | Views: 1892


Zhihang Zhou 1,2, Liang Li 2,3, Bin Zhang 2,3, Hao Qiu 2,3, Jun Wan 2,3


1 South China University of Technology, Guangzhou, Guangdong, China
2 Changsha Zoomlion Environmental Industry Co., Ltd, Changsha, Hunan, China
3 Guangdong Infore Intelligent Sanitation Technology Co., Ltd, Foshan, Guangdong, China

Corresponding Author

Zhihang Zhou


Considering centrifugal fan as a key component of pneumatic conveying system, the research on the key technology of high-efficiency and low-noise design of centrifugal fan has gradually become the bottleneck of environmental sanitation equipment development. The generation mechanism and research methods of aerodynamic noise of centrifugal fan are summarized. Compared with experimental result of the noise frequency spectrum, the feasibility of the numerical simulation method based on detached eddy turbulence model is validated. Furthermore, based on the numerical simulation technology, the effects of inlet design, adding short blades, double outlet design, inclined volute tongue on the aerodynamic performance and aerodynamic noise of centrifugal fan are explored. The research results are observed in the following: (1) The inlet air flow distortion significantly affects the vortex generation and vorticity distribution inside and at the outlet of the fan, and the straight tube or arc tube inlet can significantly reduce the vorticity generation and reduce the aerodynamic noise. (2) Adding short blades is an effective measure to reduce the aerodynamic noise. Compared to the original design, the outlet aerodynamic noise for the optimization design can be reduced by 5.26 dB at most. However, the improvement of aerodynamic performance is relatively limited. (3) The aerodynamic performance of the double outlet design is obviously improved, while the noise reduction effect can be achieved by reducing rotation rate after meeting basic requirement of the aerodynamic performance. (4) The inclined volute tongue has slightly effect on reducing aerodynamic noise and improving aerodynamic performance. The research results in this paper will offer new insights into the design of high-efficiency and low-noise centrifugal fan, and provide the method support for the innovative design of pneumatic conveying system in environmental sanitation equipment industry.


High efficiency, Low noise, Detached Eddy Simulation, Vorticity distribution, Centrifugal fan


Zhihang Zhou, Liang Li, Bin Zhang, Hao Qiu, Jun Wan, Numerical Simulation Study on Optimization Design of High Efficiency and Low Noise Centrifugal Fan. Journal of Precision Instrument and Machinery (2022) Vol. 2: 25-37. DOI:


[1] Chen X. X. (2018) Study on Aerodynamic Optimization and Power Matching of Centrifugal Fan System on Sanitation Vehicles. Master degree’s thesis, Shanghai Jiao Tong University, Shanghai.
[2] Heo M. W., Kim J. H., Cha K. H., et al. (2013) Parametric Study on Aerodynamic Performance of a Centrifugal Fan with Additionally Installed Splitter Blades. ASME Fluids Engineering Conference. 
[3] Wang X. L., Yang D. H., Yang G. S., et al. (2013) Air Flow Simulation in High-Pressure Fan with Splitter Blade. Fluid Machinery, 805-806, 1730-1735.
[4] Yang C. W., Chang Z. Z., Zuo Y. F. (2010) Numerical Investigation of Centrifugal Fan with Long-short Blade. Fan Technology, 4, 9-13.
[5] Hu X. (2018) Study on Aerodynamic Performance Calculation and Noise Reduction of Fans with Uneven Blade Spacing. Master degree’s thesis, South China University of Technology, Guangzhou.
[6] Li L., Wang R., Jing H. H. (2012) Three Dimensional Numerical Simulation of Internal Flow Field in Multi-blade Centrifugal Fan based on the Non-linear Turbulent Model. Fluid Machinery, 10,41-45.
[7] Li L., Zhang B., Fu L., et al. (2015) Analysis on internal vortex and pressure pulsation properties of road sweeper fan. Chinese Journal of Construction Machinery, 6, 486-491.
[8] Zhang B., Li L., Fu L., et al. (2014) Analysis of the Optimized Design and Numerical Simulation on the Centrifugal Fan of Sweepers. Machinery Design & Manufacture, 9, 246-248.
[9] Huang J. A., Xiang Y., Jiang C. J. (2021) Research on Aerodynamic Noise Calculation and Noise Reduction Design of Multi-blade Centrifugal Fans. Noise and Vibration Control, 2, 56-61.
[10] Ran M. M. (2007) Analysis of Multi-blade Centrifugal Fan on CFD and Noise Prediction. Master degree’s thesis, Huazhong University of Science & Technology, Wuhan.
[11] Mao Y. J., Qi D. T., Zhao C., et al. (2014) Research and Development of Fan Noise Prediction and Control Methods. Fan Technology, 3, 67-74.
[12] Sandra V.S., Rafael B.T., Carlos S.M., et al.(2008)Reduction of the aerodynamic tonal noise of a forward-curved centrifugal fan by modification of the volute tongue geometry. Applied Acoustics, 69, 225-232.
[13] Li D., Gu J.M. (2004) Practice and Analysis to Reduce the Fan Noise with Step-tongue Volute. Fluid Machinery, 2, 10-12.
[14] Chen Z.H., Chen K. (2014) Research on the effect of bell mouth structure on the performance of centrifugal fan. Online Excellent Papers of Chinese Scientific and Technological Papers, 6, 578-584.
[15] Yu Z., Li S., He W.Q., et al. (2005) Numerical Simulation of Flow Field for a Whole Centrifugal Fan and Analysis of the Effects of Blade Inlet Angle and Impeller Gap. Hvac & R Research, 2, 263-283.
[16] Khelladi S., Kouidri S., Bakir F., et al. (2005) Flow Study in the Impeller-Diffuser Interface of a Vaned Centrifugal Fan. Journal of Fluids Engineering, 3, 495-502.
[17] Park S. O., Meakhail T. (2005) A Study of Impeller-Diffuser-Volute Interaction in a Centrifugal Fan. ASME Paper No.GT-2004-53068, 84-90.
[18] Zhou S.Q., Li H., Wang J., et al. (2015) Study on the Effect of Inlet Nozzle Installation on Performance of Forward-Curved Blade Centrifugal Fan. Journal of Engineering Thermophysics, 7, 1466-1470.
[19] Yang X., Wen X.F., Yuan M.J., et al. (2012) Experimental Research on Eccentric Inlet of a Multi-blade Centrifugal Fan with Dual Inlet. Fluid Machinery, 2, 1-4.
[20] Li C.X., Lei Y., Wang S. L., et al. (2006) Investigation on Flow Dynamics and Decreasing Vortex Noise Inside Volute of Centrifugal Fan. Proceedings of the CSEE, 17, 117-121.
[21] Li C.X., Wang S. L. (2009) Numerical and Experiment Investigation on Flow Characteristics inside Volute of a Centrifugal Fan with Anti-vortex Ring. Journal of Mechanical Engineering, 7, 278-283. 
[22] Bai Y.H. (2019) Effect of Anti-vortex Ring Structure of Mine Ventilator on Total Pressure Efficiency of Fan. Mechanical Management and Development,7, 139-140
[23] Wu H.Y., Jian X.L., Chen Q., et al. (2020) Noise Analysis and Control of Centrifugal Fan for Space Station. Fan Technology, 2, 30-37.
[24] Yao X.G., Bai W.J., Yu W.C., et al. (1998) Experimental Study on Noise Reduction of Centrifugal Fan (I) — Effect of Impeller Type on Noise. Fluid Machinery, 2, 9-12
[25] Zhu M.L., Yang S.N., Zhu W.W., et al. (2001) Development of A Series Assembled Silencers for Low or Median Pressure Centrifugal Blower. Noise and Vibration Control, 2, 18-26.
[26] Khalid I., Salamat S. (2018) Comparison of Lattice-Boltzmann (Direct Noise Computation) Method and Hybrid Computational Aeroacoustic Approaches in Aircraft Noise Prediction. 4th Multi Disciplinary Student Research International Conference (MDSRIC).
[27] Brionnaud R., Modena M. C., Trapani G., et al. (2015) Direct Noise Computation with a Lattice-Boltzmann Method and Application to Industrial Test Cases. Aiaa/ceas Aeroacoustics Conference.
[28] Schfer R., Bhle M. (2020) Validation of the Lattice Boltzmann Method for Simulation of Aerodynamics and Aeroacoustics in a Centrifugal Fan. Acoustics, 4,735-752.
[29] Gorakifard M., Saluea C., Cuesta I., et al. (2021) Analysis of Aeroacoustic Properties of the Local Radial Point Interpolation Cumulant Lattice Boltzmann Method. Energies, 5, 1443.
[30] Stadler M., Schmitz M. B., Laufer W., et al. (2013) Inverse Aeroacoustic Design of Axial Fans Using Genetic Optimization and the Lattice-Boltzmann. Proceedings of ASME Turbo Expo 2013: Turbine Technical Conference and Exposition, 1-11.
[31] Stadler M., Schmitz M. B., Ragg P., et al. (2012) Aeroacoustic Optimization for Axial Fans with the Lattice-Boltzmann Method. ASME Turbo Expo 2012: Turbine Technical Conference and Exposition, 1-10.
[32] Sanjosé M., Hub S., Lrcher F., et al. (2021) Noise mechanisms in a radial fan without volute. Journal of Physics: Conference Series, 1,012009.
[33] Manoha E., Caruelle B. (2015) Summary of the LAGOON Solutions from the Benchmark problems for Airframe Noise Computations-III Workshop. Aiaa/ceas Aeroacoustics Conference.
[34] Luzzato C. M., Biermann J., Fouque R. (2019) The Aero-Acoustic Design and Optimization of a Ground Transportation HVAC System using Lattice Boltzmann Methods. NAFEMS World Congress. 
[35] Sorgüven, E., Doğan Y. (2012) Acoustic Optimization for Centrifugal Fans. Noise Control Engineering Journal. 4, 379-391.
[36] Magne S., Sanjose M., Moreau S., et al. (2013) Tonal Noise Control of Centrifugal Fan Using Flow Obstructions - Experimental and Numerical Approaches. 19th AIAA/CEAS Aeroacoustics Conference.
[37] Dominic, L. D., Mélanie, et al. (2017) Aeroacoustic study of an axial engine cooling module using lattice-Boltzmann simulations and the Ffowcs-Williams and Hawkings Analogy. European Journal of Mechanics B/fluids, 10, 1-8.
[38] Perot F., Kim M. S., Goff V. L., et al. (2013) Numerical optimization of the tonal noise of a backward centrifugal fan using a flow obstruction. Noise Control Engineering Journal, 3, 307-319.
[39] Spalert P.R., et al. (1997) Comments on the feasibility of LES for wings, and on a hybrid RANS/LES Approach. Advances in DNS/LES, 1, 4-8.
[40] Spalart P. R. (2006) A new version of detached-eddy simulation, resisentant to ambiguous grid densities. Theoretical and computational fluid dynamics, 3,181-195.
[41] Chen B. B., (2018) Study on the Aerodynamic Performance and Noise of the Centrifugal Fan for Vacuum Cleaners, Master degree’s thesis, Nanjing University of Aeronautics and Astronautics, Nanjing.

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